. 2020 Jun 9;15(6):e0234161. doi: 10.1371/journal.pone.0234161

Table 5. Relationship between swimming lessons at 3y and current wheeze at 5y in children with or without wheeze at 3y.

		Unadjusted OR		Adjusted OR^a		Multiple imputation
		OR (95% CI)	P-value	OR (95% CI)	P-value	OR (95% CI)	P-value
Ever wheeze by 3y (-)	Swimming lessons at 3y (-)	1		1		1
Ever wheeze by 3y (-)	Swimming lessons at 3y (+)	0.58 (0.23–1.49)	0.258	0.65 (0.22–1.92)	0.439	0.58 (0.23–1.50)	0.263
Ever wheeze by 3y (+)	Swimming lessons at 3y (-)	1		1		1
Ever wheeze by 3y (+)	Swimming lessons at 3y (+)	0.80 (0.36–1.75)	0.568	0.93 (0.35–2.59)	0.931	0.86(0.37–1.98)	0.715

CI: confidence interval, OR: odds ratio, 3y: age 3 years, 5y: age 5 years

Statistical analysis was conducted using multivariable logistic regression.

^aOR adjusted for gender, birth weight, sibling(s), pet ownership, environmental tobacco smoke exposure at 3y, television(TV) viewing at 3y, income, maternal education level, maternal age, maternal asthma, atopic dermatitis or rhinitis, breastfeeding before age 6 months, and BMI Z-score at 3y.