Table 4.
Prevalence of Perceived Medical Errors Among Interns Grouped by Depression Status, Sleep Duration, and Work Hours.
| Perceived Medical Errors | ||||
|---|---|---|---|---|
| 3 Months | 6 Months | |||
| Sleep duration | χ2 = 4.34, p = .03 | χ2 = 2.15, p =. 14 | ||
| Short sleep | 20.6% | 22.0% | ||
| Longer sleep | 15.4% | 18.1% | ||
| Work hours | χ2 = 8.74, p < .01 | χ2 = 6.62, p =. 01 | ||
| Work hours ≥ 70 hr | 22.1% | 23.9% | ||
| Work hours < 70 hr | 14.6% | 17.0% | ||
| Depression | χ2 = 22.79, p < .001 | χ2 = 27.34, p < .001 | ||
| Nondepressed | 13.6% | 15.4% | ||
| Acutely depressed | 26.2% | 25.4% | ||
| Chronically depressed | 32.8% | 41.0% | ||
Note. Interns with short sleep reported ≤6 hr of nightly sleep. Interns with longer sleep reported >6 hrs of nightly sleep. Work hours groups were created using a median split, which was identical at within-internship assessments. Nondepressed = No positive depression status at any time point. Acutely depressed = Positive depression status at either 3- or 6-month follow-up. Chronically depressed = Depressed at both follow-up assessments.