. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: J Am Coll Radiol. 2010 Sep;7(9):698–704. doi: 10.1016/j.jacr.2010.03.004

Table 2.

Data for Attendings and Residents for the Early and Late sessions regarding sleep, case reading and eye conditions on the days of the study.

	Attendings Early	Attendings Late	Residents Early	Residents Late
Time up	4:00 – 7:30 am	5:00 – 6:45 am	5:00 – 8:30 am	5:00 – 7:15 am
Hours sleep	7.10 (sd = 0.66; range = 6 – 8)	6.88 (sd = 0.86; range = 5 – 8)	6.93 (sd = 0.80; range = 6 – 8.5)	6.48 (sd = 0.92; range = 4 – 8)
Hours reading	0.44 (sd = 0.79; range = 0 – 3)	6.48 (sd = 2.43; range = 2 – 10)	0.28 (sd = 0.70; range = 0 – 2,5)	7.73 (sd = 2.06; range = 4 – 14)
Number cases	6.05 (sd = 11.21; range = 0 – 40)	70.55 (sd = 47.31; range = 8 – 200)	2.40 (sd = 6.96; range = 0 – 30)	27.45 (sd = 19.54; range = 5 – 75)
Cold/Allergies	25% yes	25% yes	0% yes	10% yes
Itchy/Watery eyes	28.57% yes	0% yes	37.50% yes	0% yes
Used eye drops	0% yes	12.5% yes	0% yes	0% yes