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Table 3 Odds Ratios (OR) and 95% confidence intervals (CI) for being early menopausal on childhood characteristics (n = 6805)

From: Risk factors for natural menopause before the age of 45: evidence from two British population-based birth cohort studies

Childhood characteristics

OR

95% CI

Cognitive ability at 10/11 (per SD)a

0.64***

0.57

0.71

Age at menarche (per year)

0.98

0.90

1.07

BMI at 16 (per kg/m2)

1.03

0.99

1.07

Smoking at 16

 No (reference)

1

  

 Yes

1.51***

1.19

1.92

Drinking the week prior age 16 interview

 No (reference)

1

  

 Yes

1.09

0.85

1.39

Exercise at 16

 Monthly or less often (reference)

1

  

 Weekly (Often)

0.92

0.70

1.20

Emotional/Neurotic score at 16

1.00

0.92

1.10

  1. The second childhood model (from which all the other coefficients come from) included all remaining potential risk factors in childhood (age at menarche, BMI, smoking, alcohol drinking, exercise, and emotional/neurotic score), adjusted for cognitive ability at 10/11 and birth characteristics, and cohort year
  2. This table presents selected coefficients for being early menopausal on childhood characteristics. Full results are presented in Supplementary material (Additional file 1: Table 4)
  3. An asterisk indicates significance levels, *** p < 0.001
  4. a Adjusted for all birth characteristics, and cohort year