Table 2.
Univariable and multivariable regression modelling of FEV1 Z-scores in 909 First Nations subjects.
| Univariable (n = 909) | Multivariable (n = 909) | ||||||
|---|---|---|---|---|---|---|---|
| Model A | Model B | ||||||
| β (95%CI) | p | β (95%CI) | p | β (95%CI) | p | ||
| Age when lung function undertaken (per 1 year increase) | −0.03 (−0.05, −0.01) | <0.01 | −0.03 (−0.04, −0.01) | <0.01 | −0.03 (−0.05, −0.01) | <0.01 | |
| Sex (Female) (n = 465) | 0.01 (−0.12, 0.13) | 0.93 | |||||
| Household smoking (n = 130) | −0.19 (−0.37, −0.01) | 0.04 | −0.19 (−0.37, −0.01) | 0.04 | −0.19 (−0.37, −0.01) | 0.03 | |
| Gestational age (weeks) | >36 (n = 464) | Reference | - | Reference | - | Reference | - |
| 34–36 (n = 45) | −0.01 (−0.30, 0.29) | 0.97 | −0.00 (−0.29, 0.29) | 1.00 | −0.01 (−0.30, 0.29) | 0.96 | |
| 30–34 (n = 10) | −0.46 (−1.07, 0.14) | 0.13 | −0.40 (−1.01, 0.20) | 0.19 | −0.40 (−1.00, 0.21) | 0.20 | |
| <30 (n = 6) | −1.06 (−1.84, −0.27) | <0.01 | −0.95 (−1.73, −0.17) | 0.02 | −0.95 (−1.72, −0.17) | 0.02 | |
| Unknown (n = 385) | −0.14 (−0.27, −0.01) | 0.03 | −0.15 (−0.28, −0.02) | 0.03 | −0.15 (−0.28, −0.01) | 0.03 | |
| Eczema (n = 48) | −0.16 (−0.45, 0.12) | 0.26 | |||||
| Hay fever (n = 59) | −0.18 (−0.43, 0.08) | 0.18 | −0.07 (−0.34, 0.19) | 0.58 | −0.06 (−0.33, 0.20) | 0.64 | |
| Rash (n = 44) | −0.15 (−0.45, 0.15) | 0.32 | |||||
| Wheeze (n = 115) | −0.29 (−0.48, −0.09) | <0.01 | −0.22 (−0.42, −0.02) | 0.03 | −0.23 (−0.43, −0.03) | 0.02 | |
| Ever-pneumonia (n = 49) | −0.34 (−0.62, −0.06) | 0.02 | −0.35 (−0.63, −0.07) | 0.01 | |||
| Age (years) of first pneumonia | Never (n = 464) | Reference | - | Reference | - | ||
| 0–2 (n = 27) | −0.40 (−0.78, −0.02) | 0.04 | −0.42 (−0.79, −0.04) | 0.03 | |||
| 3–5 (n = 13) | −0.54 (−1.07, −0.00) | 0.05 | −0.62 (−1.14, −0.09) | 0.02 | |||
| >5 (n = 9) | 0.13 (−0.51, 0.77) | 0.70 | 0.23 (−0.40, 0.86) | 0.48 | |||