Table 3 Descriptive statistics for patients with LOS ≤ 3 days vs. LOS ≥ 3 days

Number

450

242

207

Age, yrs., Mean (Range)

67.0 (29–92)

64.7 (36–90)

71.0 (29–92)

<.0001

Gender, n^a (%)

0.07

 Female

282 (62.8)

143 (59.1)

139 (67.2)

-  Male

167 (37.2)

99 (40.9)

68 (32.8)

Type of operation, n^a (%)

<.001

-  THA

280 (62.2)

167 (69.0)

113 (54.6)

-  TKA

169 (37.6)

75 (31.0)

94 (45.4)

ASA class, n (%)

<.0001

-  ASA 1

62 (13.8)

46 (19.0)

16 (7.7)

-  ASA 2

209 (46.4)

132 (54.5)

77 (37.2)

-  ASA 3–4

179 (39.8)

64 (26.5)

114 (55.1)

Weekday of operation, n^a (%)

ns.

-  Monday

125 (27.8)

67 (53.6)

58 (28.0)

 Tuesday

111 (24.7)

70 (63.1)

41 (20.0)

-  Wednesday

107 (24.0)

59 (55.1)

48 (23.0)

-  Thursday

106 (23.5)

46 (43.4)

60 (29.0)