Multivariable linear regression for impact of respondent group and age on disease perception composite score
Covariates | Estimated coefficient (difference on 80-point scale)* | 95% CI | P value |
Age (per 10-year increment) | −0.37 | −0.68 to 0.05 | 0.02 |
Respondent group (all in comparison to laypeople) | |||
Members of parliament | 1.71 | −1.53 to 4.94 | 0.30 |
Nurses | 4.12 | 3.14 to 5.10 | <0.001 |
Non-psychiatrist physicians | 5.70 | 4.60 to 6.80 | <0.001 |
Psychiatrists | 10.53 | 7.66 to 13.41 | <0.001 |
*Per one unit increase in the covariates included in the model (eg, per 10-year increase in age), the estimated coefficient can be interpreted as the disease score change associated with the covariate. For instance, per 10-year increase in age (first covariate listed in the table), there is an average 0.37 decrease in disease score.