Dietary patterns, lung function and asthma in childhood: a longitudinal study

Respiratory Research

Table 5 Odds ratio (95% confidence interval) for incident asthma at 11 or 14 years according to quartiles of dietary pattern score at 7 years, adjusted for potential confounders

	Quartiles of dietary pattern score				P for trend^a	Per SD
	Q1	Q2	Q3	Q4	P for trend^a	Per SD
‘Health-conscious’ dietary pattern
Cases/non-cases	86/984	94/1043	102/1081	109/1051
Model 1	1.00	1.02 (0.75–1.38)	1.05 (0.78–1.43)	1.10 (0.80–1.50)	0.52	1.03 (0.92, 1.15)
Model 2	1.00	0.99 (0.73–1.36)	1.03 (0.75–1.41)	1.04 (0.74–1.45)	0.80	1.00 (0.89, 1.13)
‘Traditional’ dietary pattern
Cases/non-cases	90/1085	101/1040	103/1009	97/1025
Model 1	1.00	1.16 (0.86–1.56)	1.21 (0.90–1.64)	1.06 (0.77–1.45)	0.67	1.01 (0.90, 1.13)
Model 2	1.00	1.20 (0.89–1.63)	1.24 (0.91–1.69)	1.11 (0.80–1.54)	0.49	1.02 (0.91, 1.15)
‘Processed’ dietary pattern
Cases/non-cases	107/1126	104/1073	92/1028	88/932
Model 1	1.00	0.98 (0.73–1.30)	0.89 (0.66–1.21)	0.86 (0.61–1.21)	0.33	1.00 (0.87, 1.14)
Model 2	1.00	0.99 (0.74–1.33)	0.94 (0.68–1.29)	0.88 (0.61–1.27)	0.46	1.01 (0.87, 1.17)

The number of participants included in the analysis was 4491
Multivariable model 1: sex and total energy intake
Multivariable model 2: further adjusted for maternal education, housing tenure at birth, financial difficulty during pregnancy, maternal ethnicity, index of multiple deprivation, rural living location, maternal and paternal history of atopic disease, older sibling, younger sibling, breastfeeding, maternal smoking, vigorous physical activity, history of food allergy, and season when the FFQ was completed
^aLinear trend was tested by treating the median values of quartiles as a continuous variable

ISSN: 1465-993X