Table 2.
Shift-related and road exposure factors by speciality
| All (n =273) |
Surgical (n = 57) | Medical (n =216) | ||
|---|---|---|---|---|
| Mean (SD) | P-value* | |||
| Shift-related | ||||
| Average hours worked per week | 58.1 (16.1) | 74.1 (17.9) | 53.9 (12.7) | <0.0001 |
| Standard days worked in past 30 days | 10.3 (7.5) | 11.0 (8.2) | 10.1 (7.3) | 0.4565 |
| Hours per standard work day | 10.4 (5.4) | 10.9 (2.1) | 10.3 (5.9) | 0.1988 |
| On-call shifts worked in past 30 days | 4.6 (2.9) | 6.8 (2.6) | 4.0 (2.7) | <0.0001 |
| Hours per on-call shift | 18.6 (10.3) | 23.5 (9.4) | 17.3 (10.2) | <0.0001 |
| Past-midnight shifts worked in past 30 days | 1.21 (2.7) | 1.1 (2.5) | 1.2 (2.7) | 0.6398 |
| Road exposure | ||||
| Length of commute (km) | 10.2 (9.7) | 7.7 (8.6) | 10.9 (9.8) | 0.0160 |
| Commutes per week | 5.6 (4.3) | 6.9 (5.1) | 5.2 (4.1) | 0.0250 |
| Weekly road exposure (km) | 64.3 (84.5) | 55.8 (75.5) | 66.6 (86.9) | 0.1899 |
*
t-test comparing average of explanatory factor among surgical versus medical trainees