Ethnicity-related trends in gynecologic malignancies in Israel, 1993-2013.

Objective: To describe trends and ethnic differences in incidence of gynecologic cancer in Israel.

Methods: In the present retrospective epidemiologic study, age-standardized rates (ASRs) rates of gynecologic malignancies that occurred between January 1, 1993, and December 31, 2013, were extracted from the Israeli National Cancer Registry. The annual percent change (APC) was calculated separately for Jewish and Arab patients for ovarian, endometrial, and cervical cancers.

Results: Among Jewish patients, the ASR of ovarian cancer decreased (APC -2.27%, 95% confidence interval [CI], -2.7 to -1.84; P<0.001), the ASR of endometrial cancer increased (APC 1.50%, 95% CI 0.87-2.14; P<0.001), and the ASR of cervical cancer did not change (P=0.737). Among Arab patients, the ASRs of ovarian and cervical cancer did not change (P=0.181 and P=0.575, respectively), and the ASR of endometrial cancer increased (APC 1.98%, 95% CI 0.15-3.85; P=0.021).

Conclusions: Between 1993 and 2013, the incidence of gynecologic malignancies showed different trends among Jewish and Arab populations. Endometrial cancer increased among both populations and ovarian cancer decreased among Jewish patients. ASR of cervical cancer was low and stable among both Jewish and Arab groups. These trends could reflect differences in lifestyle and exposure to risk factors associated with each malignancy.