Table 1.

Demographic and risk factor data for study participants

FactorGroup (n)
Controls (829)All cases (764)Serous invasive (342)Endometrioid invasive (148)Mucinous invasive (48)Serous borderline (61)Mucinous borderline (62)
Age (y, mean)54555857504645
Parity
    015% (131)22% (164)16% (55)29% (43)21% (10)28% (17)26% (16)
    1-215% (123)43% (329)44% (150)43% (63)44% (21)46% (28)40% (25)
    ≥346% (382)36% (271)40% (137)28% (42)35% (17)26% (16)34% (21)
Family history of breast or ovarian cancer (yes)8% (64)12% (88)16% (54)9% (13)6% (3)12% (7)2% (1)
Ever use oral contraceptives64% (534)50% (381)47% (161)43% (64)60% (29)64% (39)69% (43)
Hysterectomy (yes)20% (168)14% (109)16% (54)10% (14)19% (9)12% (7)10% (6)
Tubal ligation (yes)23% (188)13% (102)14% (47)12% (17)17% (8)10% (6)10% (6)
Post school education (yes)48% (400)42% (318)40% (138)45% (67)44% (21)34% (21)50% (31)
Smoking status
    Never63% (521)58% (446)62% (212)65% (96)48% (23)56% (34)36% (22)
    Current15% (126)20% (150)14% (46)19% (28)27% (13)16% (17)37% (23)
    Past22% (182)22% (168)25% (84)16% (24)25% (12)28% (10)27% (17)
Height (cm)
    <16034% (283)33% (248)34% (116)36% (53)35% (17)36% (22)11% (7)
    160-16428% (232)31% (240)33% (112)28% (41)33% (16)31% (19)36% (22)
    165-16923% (194)20% (156)18% (63)26% (38)13% (6)18% (11)19% (12)
    170-17411% (94)12% (89)10% (35)9% (13)15% (7)13% (8)24% (15)
    ≥1753% (26)4% (31)5% (16)2% (3)4% (2)2% (1)10% (6)
Menarche age (y)
    <1216% (132)15% (116)13% (46)18% (27)13% (6)21% (13)7% (4)
    1219% (158)18% (137)20% (69)18% (27)19% (9)15% (9)10% (6)
    1327% (221)27% (208)26% (90)24% (35)21% (10)38% (23)39% (24)
    ≥1438% (318)40% (303)40% (137)40% (59)48% (23)26% (16)45% (28)