Table 1.

Age and age-standardized baseline characteristics according to perineal talc use in 1982 among 66,088 women in the NHS

CharacteristicsEver perineal talc use
No (n = 40,958)Yes (n = 25,130)
Age4848
Age at menarche12.612.5
Nulliparous (%)6.05.6
Parity (mean)*3.23.2
Age at first birth*2525
Age at last birth*3131
Ever OC use (%)4746
OC duration (mo)5251
Postmenopausal (%)4040
Age at menopause4949
Ever PMH use (%)3029
PMH duration (mo),3534
Ever cigarette smoking (%)5756
Pack-years2221
BMI (kg/m2)24.225.6
BMI (kg/m2) [%]
    <2567.955.8
    25-2922.627.2
    ≥309.517.0
Diabetes (%)0.80.9
Family history uterine cancer (%)3.02.9
IUD (%)2.92.8
Diaphragm (%)4.24.4

NOTE: Characteristics adjusted for age in 5-y categories (<45, 45-49, 50-54, 55-59, 60-64, >65).

  • *Among parous women only.

  • Among users.

  • Among postmenopausal women.