Table 1.

Hazard ratios with 95% confidence intervals for the association of birth weight with coronary heart disease, stroke, and total cardiovascular disease, nurses' health study, 1992-2000

	Birth weight (g)
	<2268	2268-2495	>2495-3175	>3175-3856	>3856-4536	>4536	Per kg, across all categories
Coronary heart disease
Events	21	59	329	392	91	26	918
Person years	8493	25 174	158 727	237 378	58 718	12 518	501 008
Adjusted hazard ratio:
For age	1.31 (0.84 to 2.04)	1.48 (1.12 to 1.95)	1.26 (1.09 to 1.46)	1.00	0.86 (0.68 to 1.08)	0.98 (0.66 to 1.46)	0.77 (0.69 to 0.87)
For age and BMI	1.31 (0.84 to 2.03)	1.50 (1.14 to 1.98)	1.30 (1.12 to 1.51)	1.00	0.84 (0.67 to 1.06)	0.93 (0.63 to 1.39)	0.75 (0.67 to 0.84)
Stroke
Events	18	36	259	349	75	32	769
Adjusted hazard ratio:
For age	1.23 (0.76 to 1.98)	1.04 (0.74 to 1.46)	1.13 (0.96 to 1.33)	1.00	0.78 (0.60 to 1.00)	1.32 (0.92 to 1.91)	0.89 (0.78 to 1.01)
For age and BMI*	1.23 (0.76 to 1.98)	1.05 (0.74 to 1.48)	1.16 (0.98 to 1.36)	1.00	0.77 (0.60 to 0.99)	1.28 (0.89 to 1.85)	0.87 (0.76 to 0.99)
Total cardiovascular disease
Events	39	95	588	741	166	58	1687
Adjusted hazard ratio:
For age	1.27 (0.92 to 1.76)	1.27 (1.03 to 1.58)	1.20 (1.08 to 1.34)	1.00	0.82 (0.69 to 0.97)	1.14 (0.87 to 1.50)	0.82 (0.75 to 0.90)
For age and BMI*	1.27 (0.92 to 1.76)	1.29 (1.04 to 1.60)	1.23 (1.10 to 1.37)	1.00	0.81 (0.68 to 0.95)	1.10 (0.84 to 1.43)	0.80 (0.74 to 0.88)

BMI=body mass index.