Table 3 Odds ratios for discrepant answers in offspring/parent asthma reports, univariate and multivariate logistic regression analysis

Male gender

1.33 (1.11, 1.60)

0.002

1.31 (1.08, 1.59)

1.01 (0.84, 1.23)

0.905

Age

1.00 (0.99, 1.02)

0.630

1.01 (1.00, 1.02)

0.058

 Never smoker

1.00

1.00

1.00

 Current smoker

1.51 (1.11, 2.05)

0.009

1.46 (1.05, 2.02)

1.14 (0.85, 1.52)

0.392

 Ex-smoker

1.28 (1.05, 1.56)

0.013

1.22 (0.99, 1.50)

1.31 (1.04, 1.64)

0.021

 College/university

1.00

1.00

 Primary school

1.25 (0.94, 1.66)

0.127

1.59 (0.97, 2.59)

0.065

 Secondary school

1.04 (0.86, 1.28)

0.641

1.03 (0.85, 1.26)

0.756

 Hypertension

0.93 (0.75, 1.15)

0.505

1.42 (0.89, 2.28)

0.140

 Stroke

1.03 (0.52, 2.06)

0.930

–

–

 Ischemic heart

1.88 (1.23, 2.86)

0.003

1.54 (0.96, 2.46)

–

–

 Diabetes

1.64 (1.09, 2.46)

0.018

1.46 (0.96, 2.24)

1.07 (0.47, 2.48)

0.868

 COPD

1.75 (1.07, 2.87)

0.026

1.49 (0.89, 2.50)

–

–

 Serious childhood infection < 5 years

1.12 (0.99, 1.27)

0.080

1.11 (0.98, 1.25)

0.106

 Wheeze

1.32 (1.07, 1.63)

0.010

1.02 (0.72, 1.46)

1.58 (1.26, 1.97)

< 0.001

 Wheeze with shortness of breath

1.47 (1.15, 1.89)

0.002

1.22 (0.81, 1.84)

1.37 (0.92, 2.04)

0.127

 Awoken with tightness in chest

1.01 (0.76, 1.36)

0.924

1.16 (0.87, 1.53)

0.313

 Awoken with attack of breathlessness

1.26 (0.89, 1.80)

0.193

1.11 (0.72, 1.72)

0.634

 Awoken with attack of cough

1.28 (1.05, 1.55)

0.013

1.25 (1.00, 1.57)

0.94 (0.76, 1.16)

0.557

 Currently taking asthma medication

1.32 (1.00, 1.76)

0.058

1.42 (1.06, 1.91)

0.020

 Early onset

–

–

1.12 (0.78, 1.62)

0.528

 Late onset

–

–

1.76 (1.32, 2.34)

< 0.001