Table 3.
Simple Ovarian Cyst Prevalence and Multivariable Modeling Results
| Prevalent Simple Cysts |
Adjusted Association* |
||||
|---|---|---|---|---|---|
| # Women |
Rate (%) |
Odds Ratio |
95% CI |
||
| Overall | 2217 | 14.1 | |||
| Age | |||||
| 55–59 | 884 | 15.6 | ref. | ||
| 60–64 | 658 | 13.2 | 0.83 | (0.73, 0.94) | |
| 65–69 | 434 | 13.3 | 0.97 | (0.84, 1.12) | |
| 70–74 | 241 | 13.4 | 1.01 | (0.84, 1.22) | |
| Education | |||||
| <12 years | 94 | 11.8 | 0.85 | (0.66, 1.09) | |
| 12 yrs/Completed High School | 842 | 13.6 | ref. | ||
| Some College | 515 | 14.6 | 1.11 | (0.97, 1.26) | |
| College Graduate | 411 | 15.8 | 1.32 | (1.14, 1.53) | |
| Post Graduate | 338 | 13.6 | 1.19 | (1.02, 1.40) | |
| Missing | 17 | 14.8 | NA | ||
| Cigarette Use | |||||
| Never Smoked | 1248 | 14.1 | ref. | ||
| Current Smoker | 155 | 11.5 | 0.75 | (0.61, 0.91) | |
| Former Smoker | 797 | 14.7 | 1.04 | (0.93, 1.15) | |
| Missing | 17 | 16.2 | NA | ||
| First Degree Family History of Breast Cancer | |||||
| No | 1739 | 13.8 | ref. | ||
| Yes | 342 | 15.3 | 1.12 | (0.98, 1.28) | |
| Unknown | 81 | 15.0 | NA | ||
| Missing | 55 | 16.0 | NA | ||
| Total Years of Oral Contraceptive Use | |||||
| 0 | 946 | 13.2 | ref. | ||
| <1 | 337 | 15.2 | 1.02 | (0.88, 1.18) | |
| 2–3 | 254 | 14.7 | 0.95 | (0.80, 1.13) | |
| 4–5 | 179 | 15.2 | 0.94 | (0.77, 1.14) | |
| 6–9 | 212 | 14.9 | 0.94 | (0.78, 1.13) | |
| 10+ | 266 | 14.1 | 0.97 | (0.83, 1.15) | |
| Missing | 23 | 17.8 | NA | ||
| Age at First Pregnancy | |||||
| Never pregnant | 135 | 12.2 | 0.82 | (0.60, 1.12) | |
| less than 20 | 516 | 15.6 | 1.04 | (0.91, 1.19) | |
| 20–24 | 1078 | 14.7 | ref. | ||
| 25–29 | 366 | 12.4 | 0.85 | (0.74, 0.98) | |
| 30+ | 102 | 11.2 | 0.71 | (0.55, 0.91) | |
| Missing | 20 | 13.9 | NA | ||
| Number of Pregnancies | |||||
| Never pregnant | 135 | 12.2 | NA | ||
| 1 | 120 | 13.5 | 1.25 | (0.99, 1.58) | |
| 2 | 359 | 12.8 | 0.97 | (0.84, 1.12) | |
| 3–4 | 938 | 14.5 | ref. | ||
| 53–9 | 612 | 15.1 | 0.97 | (0.86, 1.09) | |
| 10+ | 34 | 12.2 | 0.72 | (0.49, 1.06) | |
| Missing | 19 | 14.2 | NA | ||
| Hormone Replacement | |||||
| No | 682 | 12.5 | ref. | ||
| Yes | 1512 | 14.9 | 1.09 | (0.98, 1.22) | |
| Don't Know | 6 | 11.5 | NA | ||
| Missing | 17 | 14.8 | NA | ||
| Age at Menopause | |||||
| <40 | 390 | 24.7 | 2.09 | (1.77, 2.46) | |
| 40–44 | 272 | 15.7 | 1.26 | (1.07, 1.49) | |
| 45–49 | 410 | 11.6 | 0.93 | (0.82, 1.07) | |
| 50–54 | 786 | 11.9 | ref. | ||
| 55+ | 313 | 15.1 | 1.24 | (1.07, 1.44) | |
| Missing | 46 | 19.0 | NA | ||
| Previous Gynecologic Surgery | |||||
| No | 1070 | 11.4 | ref. | ||
| Yes | 1124 | 18.2 | 1.48 | (1.33, 1.66) | |
| Don't Know | 1 | 3.1 | NA | ||
| Missing | 22 | 15.9 | NA | ||
| History of Benign Ovarian Tumors or Cysts | |||||
| No | 1934 | 13.7 | ref. | ||
| Yes | 220 | 17.8 | 1.29 | (1.09, 1.52) | |
| Missing | 63 | 15.8 | NA | ||
| Use of NSAIDs or aspirin | |||||
| No | 920 | 13.5 | ref. | ||
| Yes | 1268 | 14.5 | 1.00 | (0.91, 1.10) | |
| Missing | 29 | 17.3 | NA | ||
| History of Infertility | |||||
| No | 1862 | 13.9 | ref. | ||
| Yes | 335 | 15.1 | 0.95 | (0.69, 1.30) | |
| Missing | 20 | 14.0 | NA | ||
*
Model adjusts for all factors shown, plus race and screening center
NSAID - Non Steroidal Anti-Inflammatory Drug
ref. - Referent Category
NA - Not Available