Table 2.
Characteristics of the 60 study participants
| Variable | Burnout group (n = 30) | Control group (n = 30) | P-value |
|---|---|---|---|
| Age, years | 46.77 (10.56) | 52.93 (7.48) | 0.012 |
| Body mass index, kg/m2 | 25.63 (3.09) | 24.35 (2.72) | 0.094 |
| Cardiovascular disease risk score, % | 3.11 (1.89) | 3.47 (1.89) | 0.464 |
| Alcohol, standard drinks/week | 3.72 (3.22) | 2.93 (2.30) | 0.280 |
| Physical activity, times/week | 1.99 (1.62) | 2.67 (1.92) | 0.147 |
| Emotional exhaustion, score | 29.17 (7.13) | 6.67 (3.99) | 2 × 10−19 |
| Depersonalization, score | 11.33 (7.00) | 3.07 (3.60) | 8 × 10−7 |
| Personal accomplishments, score | 12.03 (6.74) | 5.67 (4.37) | 7 × 10−5 |
| Effort-reward ratio | 1.34 (0.41) | 0.87 (0.27) | 2 × 10−6 |
| Effort, score | 10.65 (1.36) | 8.07 (2.13) | 6 × 10−7 |
| Reward, score | 19.58 (4.03) | 22.24 (2.96) | 0.005 |
| Overcommitment, score | 16.65 (2.83) | 12.43 (3.37) | 2 × 10−6 |
| Depressive symptoms, score | 7.40 (3.13) | 2.20 (1.97) | 5 × 10−10 |
| MBF, rest, mL/g/min | 0.64 (0.13) | 0.66 (0.10) | 0.530 |
| Coronary flow reserve (CPT) | 1.50 (0.52) | 1.48 (0.5) | 0.838 |
| MBF response (CPT), mL/g/min | 0.32 (0.37) | 0.33 (0.31) | 0.966 |
| Hyperemic MBF (CPT), mL/g/min | 0.94 (0.44) | 1.00 (0.32) | 0.581 |
| Coronary flow reserve (adenosine) | 4.31 (1.43) | 4.58 (1.09) | 0.409 |
| MBF response (adenosine), mL/g/min | 2.05 (0.62) | 2.27 (0.63) | 0.176 |
| Hyperemic MBF (adenosine), mL/g/min | 2.66 (0.61) | 2.96 (0.65) | 0.075 |
Values given are mean and standard deviation (in parentheses). Normalized values are given for measures of coronary microvascular function. Group differences were calculated with independent samples t-test
CPT cold pressor test, MBF myocardial blood flow