Table 7.

Logistic regression analyses for prevalence of overweight and obesity among 18 year old men according to duration of predominant breast feeding (n=1993)

		Odds ratio (95% CI) according to duration of predominant breast feeding (months)
Outcomes	Model	<1	1-1.9	2-2.9	3-3.9	≥4	P value*
Overweight (%)	Crude	1.03 (0.67 to 1.58)	0.96 (0.60 to 1.56)	0.76 (0.47 to 1.23)	0.89 (0.58 to 1.38)	1.0	0.62
	Adjusted†	1.05 (0.69 to 1.58)	0.82 (0.51 to 1.32)	0.86 (0.55 to 1.34)	0.82 (0.54 to 1.25)	1.0	0.56
Obese (%)	Crude	1.43 (0.82 to 2.49)	1.12 (0.60 to 2.10)	0.94 (0.50 to 1.74)	0.87 (0.49 to 1.56)	1.0	0.03‡
	Adjusted†	1.42 (0.79 to 2.56)	1.14 (0.59 to 2.22)	1.02 (0.53 to 1.94)	0.80 (0.43 to 1.48)	1.0	0.03‡

^*Likelihood ratio test.

^†Adjusted for family income and maternal education at birth, maternal body mass index, skin colour, birth weight, gestational age, maternal smoking during pregnancy, and current behavioural variables (smoking, alcohol drinking, type of diet, and physical exercise).

^‡Test for linear trend.