Table 3.
Patient education and exacerbation frequency.
| Univariate linear regression (95% CI) | p | Multivariate linear regression (95% CI) | p | |
|---|---|---|---|---|
| Female sex | 0.37 (−0.13 to 0.87) | 0.143 | 0.19 (−0.34 to 0.72) | 0.486 |
| Age | −0.004 (−0.04 to 0.03) | 0.817 | −0.02 (−0.06 to 0.01) | 0.167 |
| FEV1% pred | −0.04 (−0.07 to −0.01) | 0.008 | −0.02 (−0.05 to 0.02) | 0.321 |
| Comorbidity score | 0.50 (0.31 to 0.69) | <0.0001 | 0.51 (0.31 to 0.70) | <0.0001 |
| Patient education | −0.69 (−1.26 to −0.12) | 0.017 | −0.79 (−1.39 to −0.19) | 0.010 |
The multivariate model included sex and age (a priori confounding factors) and comorbidity index and FEV1% pred (statistically significant in univariate analyses). FEV1% pred = forced expiratory volume in one second in percentage of predicted value. CI = confidence interval.