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Table 3 Association between fatal stroke occurrence and age at menopause in the GBCS

From: Age at menarche, age at menopause, reproductive years and risk of fatal stroke occurrence among Chinese women: the Guangzhou Biobank Cohort Study

 

Age at menopause (years)

 < 43

43–47

48–50

51–52

 ≥ 53

Total cohort

940

2805

6600

2928

3231

No. of deaths

26 (0.028)

42 (0.015)

88 (0.013)

31 (0.010)

35 (0.010)

Model 1

(HR, 95% CI)

2.58 (1.53–4.35), P < 0.001

1.40 (0.88–2.23), P = 0.16

1.25 (0.83–1.88), P = 0.29

1.00

0.98 (0.61–1.59), P = 0.94

Model 2

(HR, 95% CI)

1.64 (0.97–2.78), P = 0.06

1.09 (0.69–1.74), P = 0.71

1.10 (0.73–1.65), P = 0.66

1.00

0.99 (0.61–1.61), P = 0.96

Born < 1940$ cohort

413

981

1996

752

796

No. of deaths

22 (0.053)

36 (0.037)

62 (0.031)

18 (0.024)

26 (0.033)

Model 1

(HR, 95% CI)

2.30 (1.23–4.28), P = 0.009

1.52 (0.86–2.67), P = 0.15

1.29 (0.77–2.18), P = 0.34

1.00

1.33 (0.73–2.42), P = 0.35

Model 2

(HR, 95% CI)

1.97 (1.05–3.69), P = 0.03

1.43 (0.81–2.52), P = 0.22

1.25 (0.74–2.11), P = 0.41

1.00

1.35 (0.74–2.47), P = 0.33

Born ≥ 1940& cohort

527

1824

4604

2176

2435

No. of deaths

4 (0.008)

6 (0.003)

26 (0.006)

13 (0.006)

9 (0.004)

Model 1

(HR, 95% CI)

1.24 (0.41–3.81), P = 0.71

0.55 (0.21–1.46), P = 0.23

0.94 (0.48–1.83), P = 0.86

1.00

0.59 (0.25–1.38), P = 0.22

Model 2

(HR, 95% CI)

1.00 (0.32–3.08), P = 0.99

0.52 (0.20–1.37), P = 0.19

0.92 (0.47–1.79), P = 0.80

1.00

0.54 (0.23–1.27), P = 0.16

  1. $Postmenopausal women born before 1940 were analysed; &Postmenopausal women born in 1940 or later were analysed; model 1: a crude hazard ratio model without adjustments; model 2: a multivariate adjusted model including age, diabetes, hypertension, dyslipidaemia, smoking, alcohol drinking, physical activity, body mass index, self-rated health, education, job, family income, number of children and oral contraceptive pill use