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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Cancer Res. 2019 Sep 5;79(19):5113–5120. doi: 10.1158/0008-5472.CAN-19-1222

Table 1:

Health-related behaviors and ovarian cancer risk factors by trauma exposure and PTSD symptoms at cohort enrollment, Nurses’ Health Study II, 1989 (N=49 443)

Total No trauma Trauma, no
PTSD
symptoms
1-3 PTSD
symptoms
4-5 PTSD
symptoms
6-7 PTSD
symptoms
Trauma, PTSD
symptoms
unknown
N 49 443 15 378 9 482 9 259 3 827 2 225 9 248
Age, years Mean (SD) 34.6 (4.6) 33.9 (4.8) 35.4 (4.5) 35.1 (4.4) 35.2 (4.4) 35.1 (4.3) 34.2 (4.6)
Race, white % (N) 95.7 (47258) 95.6 (9067) 95.6 (9067) 95.0 (8787) 95.3 (3648) 94.9 (2112) 96.0 (8878)
Change in BMI since age 18 Mean (SD) 2.6 (3.7) 2.4 (3.5) 2.7 (3.7) 2.8 (3.6) 3.0 (4.0) 2.9 (4.2) 2.6 (3.7)
Family history of breast or ovarian cancer % (N) 5.8 (2858) 5.8 (891) 5.7 (526) 5.7 (527) 7.1 (271) 6.2 (138) 5.4 (498)
Smoking, current % (N) 11.2 (5554) 9.4 (1439) 10.9 (1037) 12.0 (1109) 12.3 (470) 16.5 (368) 12.2 (1131)
Physical activity, <3 metabolic equivalent hours/week % (N) 14.1 (6964) 14.4 (2212) 14.5 (1380) 14.3 (1326) 13.0 (499) 15.6 (346) 13.0 (1199)
Parity, none % (N) 30.0 (14810) 35.1 (5394) 23.2 (2201) 27.3 (2523) 27.8 (1064) 31.4 (699) 31.7 (2928)
Tubal ligation, ever % (N) 16.2 (8003) 13.9 (2133) 18.3 (1737) 18.1 (1674) 16.7 (640) 17.8 (396) 15.3 (1418)
Oral contraceptive use, never % (N) 16.5 (8141) 19.2 (2954) 16.1 (1524) 14.6 (1356) 13.7 (523) 13.2 (293) 15.9 (1466)
Menopause status, postmenopausal % (N) 0.4 (203) 0.4 (62) 0.4 (36) 0.5 (43) 0.4 (17) 0.4 (9) 0.4 (34)
Hormone use among postmenopausal women, any % (N) 63.1 (128) 59.4 (38) 75.0 (27) 51.2 (22) 58.8 (10) 66.7 (6) 73.5 (25)