Maternal Age at First Delivery and Risk of Cardiovascular Disease Later in Life

Table 1

Distribution of age at first delivery by baseline characteristics.

	Age at first delivery
	<25	≥25	𝑃 value
	Row %
Age group			<0.001
30–49	43.6	56.4
50–69	58.1	41.9
70+	50.4	49.6
Education			<0.001
Basic level	64.9	35.1
Middle level	51.9	48.1
High level	27.8	72.2
Marital status			<0.001
Married	48.9	51.1
Living with partner	49.4	50.6
Divorced or living apart	55.9	44.1
Widowed	55.0	45.0
Single	35.8	64.2
Oral contraceptive pill use ever			0.340
No	51.6	48.4
Yes	49.7	50.3
Hormone replacement therapy use ever			0.040
No	48.2	51.8
Yes	53.6	46.4
Toxemia in any pregnancy			0.049
No	93.9	6.1
Yes	95.5	4.5
Smoking			<0.001
Nonsmoking	47.1	52.9
Stopped	49.6	50.4
Occasionally	36.1	63.9
Daily	61.7	38.3
Physical activity			0.895
Ideal	46.6	53.4
Sufficient	49.7	50.3
Uncertain	49.8	50.2
Insufficient	48.8	51.2
	Mean
Height (cm)	161.10	162.10	<0.001
Weight (kg)	70.80	69.20	<0.001
BMI (kg/m^2)	27.40	26.40	<0.001
Waist/hip ratio	0.87	0.86	<0.001
Glucose (mmol/L)	5.51	5.46	0.291
Cholesterol total (mmol/L)	6.02	5.83	<0.001
Cholesterol LDL (mmol/L)	3.71	3.56	<0.001
Systolic blood pressure (mm Hg)	136.80	132.01	<0.001
Diastolic blood pressure (mm Hg)	80.53	79.06	<0.001