Table 2.

Predictors of Self-Reported Suboptimal Patient Care Practices and Errors

	Suboptimal patient care practice*		Medical Error*
Variable	Parameter estimate (β)	P value	Parameter estimate(β)	p value
PGY-1	0.1771	0.1770	0.0204	0.8310
PGY-2	0.0379	0.7535	0.0401	0.6471
Working >80 hrs per week
(coded as yes = 1, no = 0)	0.0475	0.6330	0.0567	0.4330
Non-MD tasks >50% of time			0.0585	0.5221
(coded as yes = 1, no = 0)	0.2885	0.0204
Frequency of being overwhelmed at work			0.0739	0.0945
(coded never = 1 to 5 = very often)	0.1838	0.0019
Frequency of engaging in suboptimal patient care practices*			0.4152	<0.0001

Parameter estimates (β) are controlled for age and sex, with scores less than 0 indicating less frequent engagement in the outcome measure.

*Frequency of engaging in suboptimal patient care practices included in regression model for predictors of medical errors only.

*Outcome variables based on summary scores as described in Methods.