Table 4.

Femoral Neck BMD According to Birth Weight in Men

	Lowest Third Birth Weight	Middle Third Birth Weight	Highest Third Birth Weight
Current smoker	0.77 (0.09)	0.89 (0.14)	0.87 (0.13)
	n = 23	n = 24	n = 26
Ex-smoker	0.85 (0.12)	0.86 (0.12)	0.86 (0.12)
	n = 83	n = 81	n = 91
Never smoked	0.84 (0.12)	0.85 (0.13)	0.85 (0.10)
	n = 51	n = 67	n = 49
	p = 0.04 (p = 0.18 adjusted)

Figures given are mean femoral neck BMD (g/cm²) with standard deviations in parentheses. The p-values given are for the interaction between current smoker and birth weight, with and without adjusting for age, BMI, dietary calcium and social class.