Skip to main content

Table 1 Characteristics of childhood asthma subjects compared to subjects without asthma in COPDGene

From: Childhood asthma is associated with COPD and known asthma variants in COPDGene: a genome-wide association study

 

Childhood Asthma

Never Asthma

P-value

N = 730

N = 7493

Male gender (%)a

388 (53%)

4255 (57%)

0.06

Mean age, year (SD)c

58 (9)

60 (9)

< 0.001

Non-Hispanic white (%)a

391 (54%)

5075 (68%)

< 0.001

African American (%)a

339 (46%)

2418 (32%)

< 0.001

Pack-years of smoking (SD)b

43 (25)

44 (25)

0.09

Current smoking (%)a

410 (56%)

4041 (54%)

0.26

History of hay fever (%)a

385 (53%)

1727 (23%)

< 0.001

  1. Univariate analysis with a Chi-square b Wilcoxon rank sum test c t-test
Back to article page

Respiratory Research

ISSN: 1465-993X

Contact us