Table 1: Patient demographics and surgery characteristics.

Patient Characteristics

(N  =  156)

Age (% 75+)

67%

Gender (% Male)

54%

Race (% White)

76%

Surgery Characteristics

Surgery type

 

   General (%)

49%

   Spine (%)

36%

   Major joint arthroplasty (%)

15%

Surgery duration (% 6 hours or more)

32%

Surgery end time (% 19:00 and later)

11%

Postoperative Events

Postoperative Pain(% ≤ 5)

31%

Admission to Intensive Care Unit (%)

4%

Sleep Characteristics

Preoperative % WASO

 

≤ 15%

54%

15-25%

29%

> 25%

17%

Preoperative % day sleep

 

≤ 20%

22%

20 to 40%

57%

> 40%

21%

Postoperative % day sleep

 

≤ 20%

7%

20 to 40%

28%

> 40%

65%

Postoperative % WASO

 

≤ 15%

60%

15-25%

24%

> 25%

16%

WASO: Wake After Sleep Onset.

This table illustrates the demographics, surgery, and sleep characteristics of our sample.