Table 1 Selected perioperative characteristics

Age *(yrs, mean/SD)

55 ± 11

58 ± 12

Gender (M/F, %)

79%/21%

77%/23%

BMI (mean/SD)*

32 ± 6

35 ± 7

ASA physical status

(1/2/3/4, %)

1/61/37/1

1/47/52/0

Past Medical History

CPAP at home (%)

53%

54%

COPD (%)*

3%

11%

Procedure*

Knee arthroscopy (%)

25%

18%

Knee ACL Repair (%)

3%

3%

Hand/Forearm (%)

12%

20%

Shoulder arthroscopy (%)

33%

47%

Foot/Ankle (%)

12%

7%

Other upper extremity (%)

4%

4%

Other lower extremity (%)

11%

1%

Anesthesia*

General only (%)

6%

4%

General + regional (%)

3%

3%

Regional only

91%

93%

   Spinal/Epidural (%)

46%

28%

   Interscalene block (%)

25%

35%

   Other nerve block (%)

21%

31%

Postoperative Analgesia

Oral Opioids (%)

85%

92%

NSAIDs (%)

36%

39%

IV Opioids (%)

24%

32%