Childbearing May Increase the Risk of Nondiabetic Cataract in Chinese Women’s Old Age

Table 2

Odds ratio (OR) with 95% confidence intervals (CIs) of gender-specific logistic regressions for nondiabetic datasets.

Characteristic (reference)	Male ( = 6,203)		Female ( = 6,546)
	OR	95% CI	OR	95% CI
Age	1.08	1.06–1.11	1.04	1.03–1.06
NOC (0)
1	0.95	0.39–2.57	3.88	1.24–17.71
2	0.69	0.29–1.83	3.21	1.04–14.52
3	0.77	0.33–2.02	4.32	1.42–19.44
4 or 5	0.67	0.28–1.77	4.41	1.46–19.74
6 or more	0.30	0.09–0.95	3.98	1.28–18.10
Hypertension status (nonhypertensive)
Hypertensive	1.24	0.92–1.67	1.68	1.35–2.08
Dietary salt intake (salt-light (<6 g/day))
Salt-medium (6–18 g/day)	1.15	0.85–1.56	1.07	0.86–1.33
Salt-heavy (≥18 g/day)	0.96	0.56–1.60	1.68	1.12–2.46
Residence (city)
Rural	0.91	0.55–1.49	0.73	0.53–1.00
Education (illiterate)
Primary	1.35	0.90–2.07	0.91	0.68–1.2
Junior high school	1.18	0.70–1.98	0.46	0.27–0.75
Senior high school and beyond	1.50	0.86–2.64	0.69	0.42–1.11
Occupation (employed)
Farmer	1.20	0.69–2.12	1.06	0.68–1.67
Jobless	1.10	0.50–2.25	1.02	0.68–1.54
Others	0.88	0.56–1.37	0.83	0.56–1.23
Marital status (inmarriage)
Single	1.49	0.50–4.28	2.80	0.41–11.66
Divorced	0.75	0.12–2.53	0.88	0.21–2.46
Widowed	0.60	0.37–0.94	0.97	0.75–1.24
Smoking history (never)
Sometimes	0.85	0.55–1.30	0.56	0.29–0.99
Often	1.07	0.71–1.62	0.64	0.26–1.34
Quit	1.92	1.21–3.02	1.01	0.35–2.46
Alcohol drinking (never)
Sometimes	1.11	0.79–1.56	1.05	0.68–1.55
Often	1.22	0.70–2.06	1.55	0.44–4.17
Quit	0.94	0.53–1.60	1.61	0.50–4.36

value < 0.05, value < 0.01, value < 0.001.
NOC: number of children; BMI: body mass index.