Univariate logistic regression results predicting depression or anxiety by respondent
| Respondent | ||||||||
|---|---|---|---|---|---|---|---|---|
| Adolescent | Adult | Mother | Father | |||||
| Odds ratio (95% CI) | p Value | Odds ratio (95% CI) | p Value | Odds ratio (95% CI) | p Value | Odds ratio (95% CI) | p Value | |
| HADS or CESD depression | ||||||||
| Age, years | 1.01 (0.89 to 1.13) | 0.963 | 1.03 (1.02 to 1.04) | <0.001 | 0.99 (0.98 to 1.01) | 0.315 | 0.99 (0.96 to 1.01) | 0.304 |
| Female | 1.77 (1.17 to 2.66) | 0.007 | 1.09 (0.94 to 1.26) | 0.277 | 0.95 (0.81 to 1.10) | 0.472 | 0.93 (0.70 to 1.23) | 0.610 |
| BMI | 1.03 (0.98 to 1.10) | 0.261 | 1.01 (0.99 to 1.03) | 0.266 | 1.01 (0.98 to 1.03) | 0.696 | 1.03 (0.99 to 1.09) | 0.173 |
| FEV1 percent predicted* | 0.98 (0.90 to 1.06) | 0.621 | 0.90 (0.88 to 0.93) | <0.001 | 1.00 (0.96 to 1.04) | 0.971 | 0.95 (0.88 to 1.03) | 0.198 |
| Haemoptysis/pneumothorax in last 6 months | 3.82 (1.63 to 8.95) | 0.002 | 1.62 (1.33 to 1.98) | <0.001 | 0.96 (0.47 to 1.97) | 0.920 | 1.29 (0.31 to 5.34) | 0.723 |
| Intravenous antibiotics | 1.74 (0.94 to 3.21) | 0.076 | 1.65 (1.33 to 2.04) | <0.001 | 1.53 (1.17 to 2.01) | 0.002 | 1.72 (1.12 to 2.63) | 0.013 |
| Received an organ transplant† | – | – | 1.39 (1.03 to 1.87) | 0.030 | 1.10 (0.31 to 3.85) | 0.880 | – | – |
| Currently on psychiatric medication for depression/anxiety | 3.96 (1.94 to 8.08) | 0.003 | 3.56 (2.86 to 4.42) | <0.001 | 1.51 (0.88 to 2.61) | 0.137 | 0.68 (0.14 to 3.33) | 0.631 |
| Currently receiving psychotherapy for depression/anxiety | 6.54 (3.56 to 12.01) | <0.001 | 3.21 (2.54 to 4.06) | <0.001 | 1.88 (1.25 to 2.83) | 0.002 | 0.52 (0.15 to 1.84) | 0.313 |
| HADS anxiety | ||||||||
| Age, years | 0.99 (0.91 to 1.07) | 0.790 | 1.02 (1.01 to 1.03) | <0.001 | 0.98 (0.97 to 1.00) | 0.034 | 0.98 (0.95 to 1.00) | 0.082 |
| Female | 1.63 (1.23 to 2.15) | <0.001 | 1.66 (1.46 to 1.88) | <0.001 | 0.94 (0.81 to 1.09) | 0.404 | 0.83 (0.63 to 1.09) | 0.173 |
| BMI | 0.99 (0.95 to 1.04) | 0.793 | 1.03 (1.01 to 1.05) | 0.003 | 0.99 (0.97 to 1.02) | 0.504 | 0.98 (0.94 to 1.03) | 0.530 |
| FEV1 percent predicted* | 1.01 (0.95 to 1.07) | 0.765 | 0.96 (0.93 to 0.98) | 0.002 | 0.99 (0.95 to 1.03) | 0.541 | 0.99 (0.91 to 1.06) | 0.706 |
| Haemoptysis/pneumothorax in last 6 months | 2.03 (0.99 to 4.14) | 0.053 | 1.38 (1.15 to 1.65) | <0.001 | 1.32 (0.67 to 2.58) | 0.424 | 0.82 (0.20 to 3.44) | 0.790 |
| Intravenous antibiotics | 1.73 (1.13 to 2.66) | 0.012 | 1.14 (0.94 to 1.37) | 0.185 | 1.52 (1.16 to 1.98) | 0.002 | 1.10 (0.71 to 1.71) | 0.674 |
| Received an organ transplant† | – | – | 1.34 (1.01 to 1.77) | 0.039 | 0.91 (0.29 to 2.90) | 0.879 | – | – |
| Currently on psychiatric medication for depression/anxiety | 1.91 (1.00 to 3.68) | 0.051 | 3.37 (2.74 to 4.14) | <0.001 | 0.97 (0.57 to 1.65) | 0.919 | 0.64 (0.16 to 2.63) | 0.537 |
| Currently receiving psychotherapy for depression/anxiety | 2.77 (1.65 to 4.62) | <0.001 | 4.22 (3.37 to 5.30) | <0.001 | 2.02 (1.32 to 3.09) | <0.001 | 2.03 (0.79 to 5.17) | 0.139 |
*ORs are for a 10% change in FEV1 percent predicted.
†Variable was not included in the model for 12-year-olds to 18-year-olds due to small number of cases.
HADS, Hospital Anxiety and Depression Scale; CES-D, Center for Epidemiologic Studies-Depression Scale; BMI, body mass index.