Age at menopause quantified years by means and SHS exposure among 39 805 never-smoking women
| Never-smokers exposed to SHS | Age at menopause | |
|---|---|---|
| N (%) | Mean±SD | |
| Quantified SHS exposure | ||
| No SHS exposure | 3710 (9.4) | 49.4±5.8 |
| No childhood + any adult | 12 846 (32.5) | 48.9±6.1 |
| Childhood <10 years + any adult | 3589 (9.1) | 48.8±6.2 |
| Childhood ≥10 years + adult home <20 years + adult work <10 years | 9302 (23.7) | 48.9±5.8 |
| Childhood ≥10 years + adult home <20 years + adult work ≥10 years | 3900 (9.9) | 48.5±6.4 |
| Childhood ≥10 years + adult home ≥20 years + adult work <10 years | 3218 (8.2) | 48.7±6.1 |
| Childhood ≥10 years + adult home ≥20 years + adult work ≥10 years | 2937 (7.4) | 48.3±6.8 |
| Missing | 303 | |
| Crude model p value | <0.001 | |
| Adjusted p value | <0.001 | |
Adjusted for age decades, race, education, alcohol use, insecticide exposure, OC use, BMI at 18 years, hard exercise at 18 years and age at menarche (n=34 580).
BMI, body mass index; OC, oral contraceptive; SHS, secondhand smoke.