
768 F.Supp. 647 (1991)
UNITED STATES EQUAL EMPLOYMENT OPPORTUNITY COMMISSION, Plaintiff,
v.
WARSHAWSKY AND COMPANY and Teamsters Union Local 781, Defendants.
No. 90 C 1352.
United States District Court, N.D. Illinois, E.D.
July 11, 1991.
*648 *649 *650 Sharon A. Seeley, Jason S. Hegy, John E. Rowe, E.E.O.C., Chicago, Ill., for plaintiff.
Julian D. Schreiber, Borovsky & Ehrlich, Marvin Gittler, Barry M. Bennett, Asher, Gittler, Greenfield, Cohen & D'Alba, Chicago, Ill., for defendants.

MEMORANDUM OPINION AND ORDER
HART, District Judge.

I. FACTS
Defendant Warshawsky & Company ("Warshawsky") had a written paid sick-leave policy that required all employees to work at least one year before they were eligible for sick leave. Warshawsky discharged those first-year employees who required long-term sick leave. In January of 1986, a discharged Warshawsky employee filed a discrimination charge with plaintiff United States Equal Employment Opportunity Commission ("EEOC") claiming that she had been denied sick leave and discharged because of a disability due to pregnancy. At the time of discharge, the employee had not yet completed one year of employment. On March 8, 1990, after an administrative investigation, EEOC brought the present suit claiming that Warshawsky's sick-leave policy discriminated against pregnant first-year employees in violation of Title VII of the Civil Rights Act of 1964, as amended by the Pregnancy Discrimination Act of 1978 (the "PDA").
Employment figures relating to the first-year sick-leave policy show that from January, 1985 to March, 1989 Warshawsky discharged 53 first-year employees pursuant to the sick-leave policy. A breakdown by sex reveals that 50 of the discharged employees were female and only 3 male. Of the 50 female employees discharged, 20 were pregnant. During the same time period, Warshawsky employed 1,105 female first-year employees and 773 male first-year employees.
Both parties are now before the court on cross-motions for partial summary judgment.[1]

II. TITLE VII  EMPLOYMENT DISCRIMINATION
Title VII of the Civil Rights Act of 1964, as amended, forbids employment discrimination because of race, color, religion, sex or national origin. 42 U.S.C. §§ 2000e to 2000e-17 (Supp.1991). Section 2000e(k), added in 1978, defines "because of sex" to include pregnancy, childbirth or related medical conditions.[2] Pregnancy Discrimination Act, § 701(k), 42 U.S.C. § 2000e(k) (Supp.1991). Under the statutory scheme, the EEOC may bring a Title VII suit against an employer "engaged in an industry affecting commerce who has 15 or more employees." See 42 U.S.C. §§ 2000e(b); 2000e-5(f)(1). EEOC can bring a Title VII action on behalf of a class of employees without certification of a class action under Federal Rule of Civil Procedure 23. General Tel. v. EEOC, 446 U.S. 318, 100 S.Ct. 1698, 64 L.Ed.2d 319 (1980). There are several forms of Title VII cases including: disparate impact; disparate treatment; retaliatory discharge; and constructive discharge. In the present case, EEOC alleges both "disparate impact" and "disparate treatment."


*651 A. Disparate Impact

A disparate impact suit is one in which an employee alleges that a facially neutral employment practice "in fact falls more harshly on one group than another and cannot be justified by business necessity." International Bd. of Teamsters v. United States, 431 U.S. 324, 335 n. 15, 97 S.Ct. 1843, 1854 n. 15, 52 L.Ed.2d 396 (1977). In a disparate impact suit, proof of discriminatory intent is not required. The focus is on the consequences of the employment practice, not the motivation. Griggs v. Duke Power Co., 401 U.S. 424, 432, 91 S.Ct. 849, 854, 28 L.Ed.2d 158 (1971). Plaintiff must present "enough evidence to warrant a finding that, more likely than not, the challenged test, criterion, or practice had a disparate impact." Allen v. Seidman, 881 F.2d 375, 380 (7th Cir.1989). In addition to showing statistical disparities, to establish a prima facie case plaintiff must identify "the specific employment practices that are allegedly responsible for any observed statistical disparities." Watson v. Fort Worth Bank & Trust, 487 U.S. 977, 994, 108 S.Ct. 2777, 2788, 101 L.Ed.2d 827 (1988). If plaintiff establishes a prima facie case of disparate impact, then defendant must show that the challenged practice "serves, in a significant way, the legitimate employment goals of the employer." Wards Cove Packing Co., Inc. v. Atonio, 490 U.S. 642, 658-59, 109 S.Ct. 2115, 2125-26, 104 L.Ed.2d 733 (1989).

1. Statistical Analysis
The Supreme Court set forth the standard for analyzing statistical evidence in Hazelwood School Dist. v. United States, 433 U.S. 299, 97 S.Ct. 2736, 53 L.Ed.2d 768 (1977), a race discrimination case. The Court held that the appropriate statistics compared the racial composition of the relevant labor market with the racial composition of those effected by the facially neutral policy. The two proportions must then be compared by statistical means to determine whether there is any statistically significant difference. If a statistically significant difference is found, an inference of discrimination may be drawn. See also Dothard v. Rawlinson, 433 U.S. 321, 97 S.Ct. 2720, 53 L.Ed.2d 786 (1977) (statutory height and weight requirements had a disparate impact on women). The Seventh Circuit has stated that standard deviations over three are significant and standard deviations between two and three should be looked at with caution. See Coates v. Johnson & Johnson, 756 F.2d 524, 536-48 (7th Cir.1985).
EEOC challenges Warshawsky's one-year sick-leave policy claiming that the policy has a disparate impact on pregnant first-year employees. There is no material dispute between the parties as to the relevant facts concerning the number of first-year employees who were fired because of the sick-leave policy. The dispute between the parties focuses on the proper statistical model to be used to determine disparate impact in a "pregnancy discrimination" case. EEOC defines the "protected group" as all pregnant first-year employees and bases its claim upon a statistical comparison between the percent of pregnant first-year employees who were discharged because of the policy (95.2%  all except one) and the percent of all non-pregnant first-year employees who were discharged because of the policy (1.8%) (See table below).


GROUP                         TOTAL         # FIRED        % FIRED
Pregnant Employees               21            20            95.2%
Non-Pregnant Employees        1,858            33             1.8%
Standard Deviation = 25.3

*652 Warshawsky disputes this computation and argues that the protected group is all pregnant first-year employees who required sick leave and the non-protected group as all non-pregnant first-year employees who required sick leave. (See table below).


GROUP                       TOTAL          # FIRED           % FIRED
Pregnant Employees
who required leave            21              20               95.2%
Non-Pregnant Employees
who required leave            33              33              100.0%
Standard Deviation = 1.27

Warshawsky's model is inappropriate to determine whether a disparate impact in fact exists concerning pregnant employees because it does not take into account the different impact of the leave policy on all pregnant and non-pregnant employees. Disparate impact analysis recognizes that not all employees are similarly situated and, thus, a facially neutral employment policy may effect one group more than another because of the differences in the group. For example, in Griggs v. Duke Power, 401 U.S. 424, 91 S.Ct. 849, 28 L.Ed.2d 158 (1971), the United States Supreme Court held that an employer's high school diploma requirement, which did not have an adequate business justification, had a disparate impact on the hiring of black applicants because fewer black applicants had high school diplomas. In that case, the disparity focus was between all black applicants and all white applicants  not between all black applicants who did not have a high school diploma and all white applicants who did not have a high school diploma. Had the analysis been of the latter, as Warshawsky argues it should have been in this case with respect to pregnant and non-pregnant employees requiring leave, there would have been no disparate impact.[3]
The EEOC's model, however, is also incorrect. By comparing "pregnant" and "non-pregnant" employees, disparate impact may be shown when none exists. To illustrate the problem, if Warshawsky had fired only four of the first-year pregnant women, but had allowed sick leave for the other seventeen, the analysis would be as follows:


GROUP                                    TOTAL           # FIRED             % FIRED
Pregnant Employees                         21                4                19.0%
Non-Pregnant Employees                  1,858               33                 1.8%
Standard Deviation = 5.66[4]
*653 Had 17 of the 21 pregnant employees received sick leave, the facially neutral policy would not have a disparate impact on pregnant women. Yet, applying EEOC's statistical analysis would result in a finding of disparate impact.[5] EEOC does not cite any case, and this court has not found any, in which a statistical model has been used to show disparate impact in a "pregnancy discrimination" case.[6] To determine what statistical model is appropriate, it is necessary to examine the PDA.
Congress enacted the PDA for the specific purpose of overruling General Electric v. Gilbert, 429 U.S. 125, 97 S.Ct. 401, 50 L.Ed.2d 343 (1976), in which the United States Supreme Court held that exclusion of pregnancy, from an otherwise comprehensive employee disability plan, was not sex discrimination actionable under Title VII. The purpose of the PDA was "to change the definition of sex discrimination in Title VII to reflect the commonsense view and to ensure that working women are protected against all forms of employment discrimination based on sex." H.R.Rep. No. 948, 95th Cong., 2d Sess. 2, 3 (1978) reprinted in 1978 U.S.Code Cong. & Ad.News 4749, 4751. The PDA did not add a cause of action for "pregnancy discrimination" to Title VII. In enacting the PDA, Congress acknowledged that the procreative function of women has been used as a means to prevent full equality for women in the workplace. It made clear that pregnancy was a condition that affected women employees and, as such, was protectable by Title VII as "employment discrimination based on sex."[7]
*654 In the present case, pregnant first-year employees are discharged at a significantly higher rate than non-pregnant first-year employees. This occurs because pregnant employees need more time off from work than non-pregnant employees. Because only women can get pregnant, if an employer denies adequate disability leave across the board, women will be disproportionately affected.[8] Thus, the statistical analysis under a disparate impact theory is the traditional "sex discrimination"[9] analysis.[10] (See table below).


GROUP                         TOTAL #            # FIRED        PERCENTAGE
Female Employees               1,105                50             4.5%
Male Employees                   773                 3             0.4%
Standard Deviation = 5.5

Under this analysis, female first-year employees were eleven times more likely to be fired than male first-year employees because of Warshawsky's first-year sick-leave policy. The likelihood of a male being fired because of the policy was only 8.89% of the likelihood of a female being fired. If there were no disparate impact  that is females had the same likelihood of being fired as males under the policy  only 4 to 5 females would have been fired due to the policy (0.004 × 1,105).
The standard test for determining whether an employment policy has a disparate impact is the eighty percent rule found in EEOC Uniform Guidelines on Employee Selection Procedures, 29 C.F.R. § 1607.4D. See B. SCHLEI & P. GROSSMAN, EMPLOYMENT DISCRIMINATION LAW 74 n. 46 *655 (1976) ("80% rule" used to answer the question: "How much impact is enough?"). The Seventh Circuit summarized the eighty percent rule in United States v. City of Chicago, 663 F.2d 1354, 1357 n. 8 (7th Cir.1981) (en banc) as follows:
[T]he failure of a sex, race or ethnic group to have a success rate which is at least 80% of the rate of the most successful group is considered evidence of adverse impact.
If the likelihood of being fired for a male were 80% of the likelihood of being fired for a female, 27 to 28 males, as opposed to three, would have been fired due to the policy ((0.045 × .80) × 773). Or stated in terms of the rule, the female success rate would have been 0.005 and only 5 to 6 women would have been fired instead of 50.
Therefore, EEOC has clearly established a prima facie case of sex discrimination under Title VII using a disparate impact theory of liability, and analysis now turns to whether Warshawsky had a "legitimate business reason" for its first-year sick-leave policy.

2. Business Justification
Once a case of disparate impact has been established, the dispositive issue is whether a "challenged practice serves, in a significant way, the legitimate employment goals of the employer." Wards Cove Packing Co., Inc. v. Atonio, 490 U.S. 642, 658-59, 109 S.Ct. 2115, 2125-26, 104 L.Ed.2d 733 (1989). This involves two considerations: (1) the justification that the employer offers for the employment policy; and (2) the availability of other practices to achieve the same business end with less disparate impact. Id. at 658, 109 S.Ct. at 2125. Although the burden of persuasion remains with the plaintiff, the employer carries the burden of producing evidence of a business justification. Id. at 659, 109 S.Ct. at 2125-26.
Warshawsky justifies its first-year sick-leave policy on the grounds that it used the availability of sick leave as a "reward" for employees who continued with the company for more than one year. Defendant claims a high employee turnover during the first year of employment and, therefore, withheld benefits from first-year employees until they had shown their staying power with the company. Defendant, however, merely recites the above reason as its business justification without providing any evidence for it. Rather, no one in management knew the reason for the policy; the policy just existed. Mr. Warshawsky, the owner of the company, testified that he did not know the origin of the policy. Mr. Bradley testified: "I think it's necessary" without offering any business reason for his opinion. Moreover, the data indicates that approximately 77 percent of the turnover in first-year employees occurred during the first 90 days of employment.
Mere recitation of a policy's necessity is not sufficient to carry defendant's burden of production under Title VII. Wards Cove, 490 U.S. at 659, 109 S.Ct. at 2125-26. Without any evidence to justify its policy, Warshawsky cannot overcome EEOC's substantial prima facie evidence of the sick-leave's discriminatory impact on females.
As to the availability of alternative practices, defendant changed its policy to a less discriminatory one in 1989. Defendant changed its first-year sick-leave policy from one year to 60 or 90 days depending on the employee's classification. Because employee turnover occurred most frequently during the first two to three months of employment, the new policy served the same business end: reduction of turnover. EEOC has carried its burden of persuasion that Warshawsky's first-year sick-leave policy did not serve, in a significant way, any legitimate employment goal. Therefore, summary judgment on EEOC's disparate impact count is granted for plaintiff EEOC and against defendant Warshawsky.

B. Disparate Treatment
A disparate treatment suit is one in which an employee alleges that she has been treated less favorably than her peers. Texas Dept. of Community Affairs v. Burdine, 450 U.S. 248, 256, 101 S.Ct. *656 1089, 1095, 67 L.Ed.2d 207 (1981); see also McDonnell Douglas Corp. v. Green, 411 U.S. 792, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973). Disparate treatment suits require either proof of discriminatory intent or establishment of a prima facie case of disparate treatment without actual proof of intent.[11]International Bd. of Teamsters v. United States, 431 U.S. 324, 335 n. 15, 97 S.Ct. 1843, 1854 n. 15, 52 L.Ed.2d 396 (1977). In a government disparate treatment suit, the government must demonstrate "that unlawful discrimination has been the regular policy of the employer, i.e., that `discrimination was the company's standard operating procedure  the regular rather then the unusual practice.'" Coates v. Johnson & Johnson, 756 F.2d 524, 532 (7th Cir.1985); EEOC v. Sears, Roebuck & Co., 628 F.Supp. 1264, 1273-74 (N.D.Ill.1986), aff'd, 839 F.2d 302 (7th Cir. 1988). Pattern and practice evidence usually consists of statistical evidence of substantial disparities between the protected group and the unprotected group, buttressed by evidence of general discriminatory policies or specific instances of discrimination. Coates, 756 F.2d at 532. Once a prima facie case is established, the burden shifts to the employer to defeat the showing by demonstrating that the government's statistics are inaccurate or by providing a nondiscriminatory explanation for its actions.
As shown above, EEOC has presented statistical evidence of a substantial disparity between female and male employees due to Warshawsky's no sick-leave policy  5.5 standard deviations. To prove disparate treatment on summary judgment, EEOC must buttress the above evidence with further evidence of either general discriminatory policies or specific instances of discrimination. Coates, 756 F.2d at 532. To do so, EEOC presents further statistical evidence by analyzing the effect of Warshawsky's lack of a formal sick-leave policy. EEOC presents evidence that many first-year male employees were granted a series of "sick days" or "personal days" and not terminated pursuant to the sick-leave policy, while almost all of the women, pregnant and non-pregnant, who requested a leave of absence were terminated under the no sick-leave policy. For example, EEOC shows that between January 1, 1985 and March, 1989, defendant allowed five out of eight first-year male employees, who needed more than two weeks of sick leave, to take extra days without being terminated pursuant to the first-year sick-leave policy. During the same time period, only 16 out of 66 requests by females were granted without termination under the no sick-leave policy (See table below).


EMPLOYEES REQUESTING LEAVE    TOTAL    # FIRED    % FIRED
Female                          66        50        75.8%
Male                             8         3        37.5%
Standard Deviation = 2.3

Warshawsky admits the above statistics, arguing only that the comparison is immaterial to this case. As discussed above, however, EEOC brought a sex discrimination suit and the above statistical analysis is appropriate.
EEOC does not provide any evidence of specific instances of discrimination against women. EEOC simply buttresses its earlier disparate impact statistics with a second statistical analysis resulting in 2.3 standard deviations. On the other hand, Warshawsky *657 provides evidence that it treated men and women alike  whether pregnant or non-pregnant. Furthermore, Warshawsky refutes EEOC's second statistical analysis concerning requests for leave. Warshawsky argues first that the statistics are inaccurate because they are not broken down by department and supervisor and second that an accurate comparison cannot be made between employees who requested one or two extra days and those who requested several extra weeks.
Because EEOC attempts to support its disparate impact claim with a second statistical analysis, its buttressing evidence resulting in 2.3 standard deviations must be carefully examined and defendant's contentions thoroughly considered. EEOC v. Sears, Roebuck & Co., 628 F.Supp. 1264, 1286-87 (N.D.Ill.1986), aff'd, 839 F.2d 302 (7th Cir.1988) (standard deviations between two and three must be carefully examined). Warshawsky's first argument is that each department's supervisors made unfettered decisions as to whether a first-year employee was granted sick days or sick leave and, therefore, EEOC's statistics are inaccurate because they do not compare similarly situated employees. Defendant is correct that where an employer's departments are diverse and each department's hiring needs are different and specialized, it is inappropriate to accept a statistical comparison that does not take into account the differences. Sears, Roebuck & Co., 839 F.2d at 311. Warshawsky, however, points to no differences between its departments. That Warshawsky has several departments without more is not evidence that the employees are not similarly situated.
Warshawsky's second argument is that an accurate statistical comparison cannot be made between employees who needed one extra day of sick leave and those who needed several extra weeks. Warshawsky presents evidence of several occasions where women were given an extra day or two of sick leave and occasions where males were denied additional sick leave and terminated. Warshawsky argues that these decisions turned upon the length of time requested, not upon whether the employee was male or female, pregnant or not pregnant. EEOC's evidence, statistical and otherwise, fails to take into account whether employees who were granted leave as extra sick days had requested one or two extra days as opposed to several extra weeks. EEOC presents no evidence as to whether male employees were given several "weeks" of sick or personal "days" rather than being terminated under the first-year sick-leave policy. Genuine issues of material fact exist as to whether Warshawsky had a discriminatory policy concerning female employees. Although EEOC's evidence is sufficient to hold that Warshawsky's policy had a disparate impact on women, without more it is not sufficient on summary judgment to hold that Warshawsky intentionally discriminated against women. Thus, partial summary judgment is inappropriate on a theory of disparate treatment, and both parties' motions are denied as to the disparate treatment count.

III. LACHES
Warshawsky argues that EEOC waited too long to file this suit and, thus, is barred by the equitable doctrine of laches. Title VII does not contain an express limitation on the time within which EEOC may bring an enforcement suit. The doctrine of laches may bar EEOC, however, if it has "delayed inexcusably and the defendant was materially prejudiced by its delay." EEOC v. Massey-Ferguson, Inc., 622 F.2d 271, 275 (7th Cir.1980). Defendant bases its affirmative defense solely upon the fact that four years elapsed between January of 1986, when EEOC received a complaint against Warshawsky, and March of 1990, when EEOC filed this suit. Warshawsky presents no evidence on the issue of delay. Accordingly, summary judgment as to defendant's affirmative defense of laches is denied.

IV. EMPLOYMENT APPLICANTS
Defendant grounds its motion for partial summary judgment on the argument that this court is without subject matter *658 jurisdiction to entertain claims other than those claims specified in EEOC's August 19, 1988 Determination Notice. The only issue to which this argument applies is whether EEOC may press its claim on behalf of female applicants. EEOC's Determination Notice refers only to employees and does not mention applicants. This lack, however, does not affect this court's subject matter jurisdiction to hear Title VII claims. Jackson v. Seaboard Coast Line Ry., 678 F.2d 992, 1002 (11th Cir.1982) (citing Zipes v. TWA, Inc., 455 U.S. 385, 393, 102 S.Ct. 1127, 1132, 71 L.Ed.2d 234 (1982)) ("Congress did not intend the conditions precedent to a Title VII action to constitute jurisdictional prerequisites.").
EEOC's complaint brings suit on behalf of "a class of aggrieved female employees and potential employees." "Potential employees" are presumed to be applicants for employment. Parties use interchangeably the terms "potential applicants" and "potential employees." Both terms suggest an indeterminate class and neither term is appropriate. An issue exists as to whether "applicants" are to be included during this suit's remedy phase, as opposed to only employees. This issue must be addressed as a part of the parties' proposals concerning relief.
IT IS THEREFORE ORDERED that:
(1) Plaintiff's motion for partial summary judgment is granted on the disparate impact claim.
(2) Plaintiff's motion for partial summary judgment is denied on the disparate treatment claim.
(3) Defendant's motion for partial summary judgment is denied as to all claims.
(4) Defendant's motion to strike is denied.
(5) Plaintiff's motion to strike is denied.
(6) The parties are to submit separate statements concerning proposed relief based on liability on the disparate impact claim by Monday, July 22, 1991. No extensions will be granted.
(7) Status hearing set for Friday, July 26, 1991 at 2:00 p.m.
NOTES
[1]  Defendant also moves to strike EEOC's alleged misrepresentations, arguments and contentions. EEOC objects to consideration of certain affidavits. To the extent that any statements are inadmissible, they are not considered in deciding these motions for summary judgment. Additionally, any representations and contentions that defendant or plaintiff have moved to strike shall be treated as contested facts in deciding these motions for summary judgment.
[2]  Section 2000e(k) reads in pertinent part:

(k) The terms "because of sex" or "on the basis of sex" include, but are not limited to, because of or on the basis of pregnancy, childbirth, or related medical conditions; and women affected by pregnancy, childbirth, or related medical conditions shall be treated the same for all employment-related purposes, including receipt of benefits under fringe benefit programs, as other persons not so affected but similar in their ability or inability to work, and nothing in section 2000e-2(h) of this title shall be interpreted to permit otherwise....
[3]  Additionally, Warshawsky's group definition is rejected because of its subjective nature. Defendant decided who "required" sick leave. Warshawsky submits no evidence concerning employee requests for sick leave. Rather, defendant refers only to those employees whom defendant subjectively determined "required" sick-leave. Also, this data is affected by Warshawsky's policy of allowing some but not all first-year employees "sick days" and "personal days" of absence.
[4]  The equation used to determine standard deviation, which both parties use, is found in J. FREUND, MODERN ELEMENTARY STATISTICS (1984).

(Footnote 4 continued on p. 653.) 
[5]  This skewing occurs because the denominator consisting of pregnant employees will usually be considerably smaller than the denominator consisting of all non-pregnant employees. Thus, a small change in the number of pregnant employees affected by a policy will change the pregnant ratio substantially more than a larger change will affect the non-pregnant ratio.
[6]  As support for its statistical analysis, EEOC cites Scherr v. Woodland School Community Consol. Dist. No. 50, 867 F.2d 974 (7th Cir.1988), in which the Seventh Circuit addressed the issue of whether a facially neutral employment policy disparately impacted pregnant employees. In Scherr, the defendant school district offered three types of leave: (1) paid sick leave; (2) unpaid maternity leave; and (3) unpaid leave. An employee could choose one of the three types of leave, but could not combine the leaves to take an extended or longer leave. The plaintiffs claimed that the facially neutral no-combination policy had a disparate impact upon pregnant employees. The Seventh Circuit remanded and held that to determine whether a facially neutral policy had a disparate impact upon pregnant employees "the district court should look to the proof of the needs of pregnant [employees] and compare that to the actual [employment policy]." Id. at 983. The majority reasoned that "Congress did not intend the same treatment of pregnancy and other disabilities to mean identical treatment." Scherr, 867 F.2d at 979.

The court did not set forth a model for statistical analysis in pregnancy discrimination cases and, on remand, the district court did not do a standard Title VII statistical analysis. Instead, the court looked at whether the school district's policy afforded pregnant employees sufficient time off to combine both parenthood and real employment opportunity. Report and Recommendation, No. 83 C 1795, unpublished opinion at 8 (Apr. 9, 1990). The district court adopted the magistrate's report holding that the "defendant's pregnancy leave policy did not have a disparate impact on teachers." Maganuco v. Leyden Community High School Dist. 212, No. 83 C 1795, slip opinion at 2 (N.D.Ill. May 10, 1990) (1990 WESTLAW 70844).
[7]  In California Fed. Sav. & Loan Ass'n v. Guerra, 479 U.S. 272, 107 S.Ct. 683, 93 L.Ed.2d 613 (1987), the United States Supreme Court found that a California statute, which guaranteed up to four months unpaid leave of absence for pregnant employees, was not preempted by the PDA because it was consistent with the purposes of Title VII. The Court reasoned that if an employer provided the same benefits to all employees  up to four months of unpaid leave for all temporary disabilities  the employer would violate neither the California statute nor the PDA. Thus, the state statute did not conflict with the PDA because it was possible to comply with both the state and federal statutes.

The Court's judgment in California Federal suggests that a maternity leave statute might violate Title VII if equal temporary leave benefits were not given to disabled non-pregnant employees. The Court, however, did not consider the issue of whether a no-leave policy, as Warshawsky has, would violate Title VII because of its disparate impact on pregnant employees. See Leading Cases, Title VII  Pregnancy Discrimination, 101 HARV.L.REV. 320, 325-26 (1987); see also Dowd, Maternity Leave: Taking Sex Differences into Account, 54 FORDHAM L.REV. 699 (1986); Note, The Conflict Between State Guaranteed Pregnancy Benefits and the Pregnancy Discrimination Act: A Statutory Analysis, 74 GEO.L.J. 1743 (1986); Note, Employment Equality Under the Pregnancy Discrimination Act of 1978, 94 YALE L.REV. 929 (1985); Note, Newport News Shipbuilding & Dry Dock Co. v. EEOC: The Family Unit Protected From Pregnancy Discrimination, 33 DE PAUL L.REV. 545 (1984).
[8]  Although the majority of cases speak of "pregnant employees," the proper classification is "pregnant women."
[9]  See Newport News Shipbuilding & Dry Dock v. EEOC, 462 U.S. 669, 684-85, 103 S.Ct. 2622, 2631-32, 77 L.Ed.2d 89 (1983) (discrimination based on a woman's pregnancy is discrimination because of sex).
[10]  Defendant argues that a comparison between males and females is inappropriate because the EEOC brought a "pregnancy discrimination" case, not a "sex discrimination" case. The EEOC complaint, however, reads: "This is an action under Title VII of the Civil Rights Act of 1964 to correct unlawful employment practices on the basis of sex and pregnancy...." (emphasis added). In the "Statement of Claims" section of its complaint, EEOC lists the following two employment practices as violative of Title VII:

The practices include:
a. terminating female employees, including Pamela Rubio, due to pregnancy;
b. failing to provide certain categories of female employees with a leave of absence for disability due to pregnancy.
EEOC's "Prayer For Relief" requests relief from "any employment practice which discriminates against employees or potential employees on the basis of sex and pregnancy" and "unlawful employment practices regarding sex/pregnancy discrimination."
[11]  The use of statistics to prove disparate treatment resembles disparate impact statistical analysis except that in a treatment case the extent of underrepresentation must be higher than that necessary to show disparate impact. See, e.g., Hazelwood School Dist. v. United States, 433 U.S. 299, 97 S.Ct. 2736, 53 L.Ed.2d 768 (1977).
