Physicians
Table 3 gives results of the RWAs. Among MDs, a weighted linear combination of 6 predictor variables included in the model explained more than 50% of the variance in emotional exhaustion (R 2=0.53) but explained a lower proportion of variance in depersonalization (R2 =0.30) and reduced personal accomplishment (R2 =0.21). Frustration explained a statistically significant proportion of variance in the three burnout dimensions: 49.5% in emotional exhaustion, 87.9% in depersonalization, and 48.7% in reduced personal accomplishment. Effort (14.5%) and temporal demand (20.0%) also explained a significant portion of variance in MD emotional exhaustion.