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. 2010 Aug 1;33(8):1043–1053. doi: 10.1093/sleep/33.8.1043

Table 1.

Studies of resident quality of life, sleep, and fatigue

Source Study Design Population and Setting Intervention Type Study Outcomes Study Quality
Carey29 Retrospective, “before and after” controlled trial Ob/Gyn residents at a single hospital Reduction in extended shifts from Q3 to at most Q7, with most shifts <13 h Decrease in resident rating of sleep deprivation. Level II-3
Goldstein26 Prospective, “before and after” controlled trial Surgical residents at a single hospital Transition from Q4 call to a night float system with 12- to 14-h shifts Improvement in overall fatigue, hours of sleep, and availability for family events with night float system. Level II-3
Gottlieb23 Prospective, concurrent controlled trial Internal medicine residents at a single VA medical center Comparison of a Q4 call schedule to night float system with maximum 16-h shifts No difference for anxiety or hostility scores, but lower depression scores for residents on the night float system. Level II-1
Hutter25 Prospective, “before and after” controlled trial Surgical residents at a single hospital Reduction in call frequency from Q3 to Q4 Decrease in emotional exhaustion and increase in motivation to work on Q4 schedule. Level II-3
Lockley20 Prospective, randomized controlled trial Internal medicine interns working in the MICU/CCU at a single hospital Comparison of traditional Q3 system with 30-h shifts to a system with maximum 16-h shifts Increased sleep and decreased attentional failures with the 16-h maximum compared to the 30-h maximum Level I
Lund28 Prospective, “before and after” controlled trial Ob/Gyn residents at a single hospital 25% overall reduction in call frequency for all residents Improvement in resident satisfaction with program but no change in other quality of life measures. Level II-3
Nichols27 Retrospective, “before and after” controlled trial Ob/Gyn residents at a single hospital Unspecified reduction in call frequency for PGY2 residents with implementation of night resident system Residents with reduced call frequency more supportive of co-resident becoming pregnant; no change in overall stress level. Level II-3
Sawyer24 Prospective, concurrent controlled trial Surgical interns at a single hospital Comparison of interns on Q2, Q3, and Q4 schedules Increased overall satisfaction and sleep, decreased fatigue on the Q4 call schedule. Level II-1