Table 2.

Change in internal medicine residents’ perceptions of the impact of the schedule on aspects of the seniors’ self/work Pre- and post-intervention (N = 50)

Aspects of senior resident self/work affected by 24 hour shifts	Pre	Post	Difference
Senior resident wellness	Mean (SE)	Mean (SE)	Mean (95% CI)	P value*
Allows general wellness	2.2 (0.1)	2.6 (0.1)	0.39 (-0.04 – 0.8)	0.07
Allows exposure to personal harm	4.0 (0.1)	2.8 (0.2)	−1.29 (-1.8 – -0.8)	<0.001
Causes conflicting role demands	2.9 (0.1)	3.7 (0.1)	0.77 (0.3 – 1.2)	0.002
Allows healthy relationships	2.6 (0.1)	2.7 (0.2)	0.05 (-0.4 – 0.5)	0.81
Causes feelings of isolation	2.3 (0.1)	1.9 (0.1)	−0.36 (-0.7 – 0.02)	0.06
Ability to deliver quality health care
Allows potential for error	3.2 (0.1)	2.5 (0.1)	−0.68 (-1.1 – -0.3)	0.003
Allows clinical skills expertise	3.5 (0.1)	3.8 (0.1)	0.26 (-0.03 – 0.6)	0.07
Allows continuity of patient care	3.6 (0.1)	3.6 (0.1)	0.04 (-0.3 – 0.4)	0.80
Causes expenditure of emotional labour	2.2 (0.1)	2.2 (0.1)	0.07 (-0.2 – 0.3)	0.57
Allows work efficiency	3.4 (0.1)	3.6 (0.1)	0.21 (-0.1 – 0.5)	0.15
Medical education experience
Allows successful teaching	3.0 (0.1)	3.5 (0.1)	0.48 (0.1 – 0.8)	0.0097
Allows medical skills proficiency	3.3 (0.1)	3.5 (0.1)	0.24 (-0.1 – 0.6)	0.14
Allows successful learning	3.1 (0.1)	3.5 (0.1)	0.42 (-0.02 – 0.9)	0.06
Allows staff physician supervision	3.1 (0.1)	2.7 (0.1)	−0.42 (-0.7 – -0.1)	0.0099
Causes rotation disruptions	4.1 (0.2)	3.3 (0.1)	−0.83 (-1.4 – -0.3)	0.003

*P value of <0.01 indicates a statistically significant difference between pre- and post-scores.