Table 3.

Effect of past 30-day secondhand nicotine vape exposure on wheeze, bronchitic symptoms and shortness of breath in sensitivity analyses restricted to participants with no past 30-day primary vaping or smoking of nicotine or cannabis§

	Wheeze	Bronchitic symptoms	Shortness of breath
	OR (95% CI)	OR (95% CI)	OR (95% CI)
Sensitivity analysis 1*	2.27 (0.74 to 6.95)	3.10 (1.52 to 6.35)	2.05 (1.01 to 4.19)
Sensitivity analysis 2†	1.30 (0.90 to 1.87)	1.39 (1.05 to 1.84)	1.56 (1.08 to 2.26)
Sensitivity analysis 3‡	1.15 (0.74 to 1.80)	1.63 (1.16 to 2.31)	1.47 (0.93 to 2.32)

*Sensitivity analysis 1: Analysis was restricted to participants without any reported primary vaping or smoking of nicotine or cannabis in the past 30 days (primary vaping or smoking) (n=1181).

†Sensitivity analysis 2: Participants were included if they participated in both wave 1 and wave 2 (n=1609), adjusted additionally for primary vaping or smoking.

‡Sensitivity analysis 3: Participants who reported no history of physician diagnosed asthma at wave 1 (n=1463), adjusted additionally for primary vaping or smoking.

§OR and 95% CI are based on mixed-effect logistic regression model with person-specific random intercept and adjustment (fixed effect) for wave, age, sex, race, parental education and secondhand smoking or cannabis (smoking or vaping secondhand cannabis) exposure.