Table 3.

Subgroup analysis between WWI index with asthma prevalence.

Characteristic	Model 1 OR (95%CI)	Model 2 OR (95%CI)	Model 3 OR (95%CI)
Stratified by gender
Male	0.94 (0.89,0.99)	1.28 (1.20,1.36)	1.19 (1.11,1.28)
Female	1.13 (1.09,1.18)	1.27 (1.22,1.33)	1.17 (1.11,1.23)
Stratified by age (years)
20-39	1.03 (0.97,1.08)	1.11 (1.05,1.18)	1.07 (1.01,1.14)
40-59	1.38 (1.29,1.47)	1.38 (1.29,1.47)	1.21 (1.12,1.30)
60-85	1.32 (1.24,1.42)	1.33 (1.24,1.42)	1.25 (1.16,1.35)
Stratified by race
Mexican American	1.13 (1.05,1.22)	1.12 (1.02,1.22)	1.07 (0.97,1.17)
White	1.09 (1.04,1.15)	1.31 (1.24,1.39)	1.19 (1.12,1.27)
Black	1.16 (1.09,1.24)	1.28 (1.19,1.38)	1.18 (1.09,1.28)
Other Race	1.20 (1.07,1.34)	1.36 (1.19,1.55)	1.27 (1.09,1.47)
Stratified by hypertension
Yes	1.15 (1.09,1.22)	1.29 (1.22,1.38)	1.22 (1.14,1.31)
No	0.98 (0.94,1.03)	1.17 (1.12,1.23)	1.13 (1.07,1.19)
Stratified by diabetes
Yes	1.31 (1.19,1.45)	1.47 (1.32,1.63)	1.36 (1.22,1.52)
No	1.04 (1.00,1.07)	1.25 (1.20,1.30)	1.18 (1.13,1.23)
Stratified by blood relative had asthma
Yes	1.17 (1.11,1.23)	1.29 (1.21,1.37)	1.21 (1.13,1.29)
No	1.07 (1.03,1.12)	1.20 (1.14,1.26)	1.13 (1.07,1.19)
Unclear	0.99 (0.83,1.18)	1.26 (1.02,1.55)	1.18 (0.94,1.49)

Model 1=no covariates were adjusted.

Model 2=Model 1+race, gender, age, marital status and education were adjusted.

Mode 3=adjusted for all covariates except effect modifier.