Skip to main content
. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Clin Exp Allergy. 2021 Feb 13;51(6):801–810. doi: 10.1111/cea.13815

Table 1.

Demographic characteristics of the genotyped subset of the GCPCR population, stratified for past or present asthma diagnosis.

Variable1 All participants
(669)		 Asthma
(n=444)		 no asthma
(n=225)		 P-value
Male sex (%) 58.4 57.4 60.4 0.50
Age at enrollment (median years, IQR) 6.8 (3.4, 11.0) 7.9 (5.4, 12.0) 4.1 (1.9, 8.1) <.0001
SHS exposure (%) 38.6 44.6 26.7 <0.001
Household income2 0.67
 < $30K (%) 22.4 23.1 21.3
 $30K - $70K (%) 28.2 29.0 26.8
 > $70K (%) 49.3 47.9 51.9
Daily asthma symptoms (%)3 NA 20.2 NA
Ever hospitalized (%)4 NA 23.8 NA
1

Categorical variables were presented as %, and p values were obtained by Chi-squared test. Continuous variable Age of enrollment was treated as a continuous variable and was presented as median (IQR). P value for age of enrollment was obtained by Wilcoxon rank sum test.

2

Missing for 115 participants.

3

Information about asthma symptom score was available for 301 of the participants with a history of asthma. Daily asthma symptoms were defined as having ever reported having cough, wheezing, shortness of breath, and/or chest tightness with a daily frequency.

4

Information about hospitalization was available for 436 of the participants with a history of asthma.