Table 6. Adjusted odds ratios for class membership according to different combinations of maternal and paternal weight status.

		Lower normal weight (referent)	Higher normal weight		Normal weight increasing to overweight		Overweight decreasing to normal weight		Overweight increasing to obesity
		%	%	OR (95% CI)	%	OR (95% CI)	%	OR (95% CI)	%	OR (95% CI)
Boys
Model 1	Both parents’ normal weight (referent)	49.9	32.8	--	25.4	--	32.1	--	15.5	--
	Mother (but not father) overweight or obese	17.3	24.1	2.15 (1.60, 2.90)	24.4	2.60 (2.03, 3.32)	21.8	1.82 (1.20, 2.77)	41.4	6.47 (4.83, 8.67)
	Father (but not mother) overweight or obese	23.2	26.6	1.71 (1.29, 2.25)	26.7	2.32 (1.84, 2.92)	24.2	1.64 (1.11, 2.42)	19.6	3.08 (2.23, 4.25)
	Both parents overweight or obese	9.6	16.5	2.64 (1.84, 3.79)	23.5	5.12 (3.88, 6.72)	21.9	3.53 (2.31, 5.39)	23.5	9.01 (6.37, 12.75)
Girls
Model 2	Both parents’ normal weight (referent)	54.4	37.6	--	21.7	--	28.7	--	17.0	--
	Mother (but not father) overweight or obese	14.4	21.4	2.20 (1.63, 2.97)	29.1	4.65 (3.54, 6.09)	24.1	3.12 (2.19, 4.43)	35.9	6.51 (4.58, 9.26)
	Father (but not mother) overweight or obese	23.0	26.4	1.69 (1.31, 2.18)	22.9	2.69 (2.08, 3.49)	28.8	2.36 (1.71, 3.25)	18.7	3.17 (2.16, 4.65)
	Both parents overweight or obese	8.2	14.6	2.69 (1.88, 3.87)	26.3	8.73 (6.40, 11.91)	18.4	4.24 (2.81, 6.39)	28.4	13.11 (8.74, 19.66)

Odds ratios weighted by estimated class probabilities using the 3-step BCH approach in Mplus, using FIML to handle missing data Models adjusted for ethnicity, maternal and paternal age, tenure, occupational class, maternal age left full-time education, and birth cohort