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Table 2 Common variables and their associations with discharge service in the total cohort and in the propensity matched cohort

From: Discharge service as a determinant of 30-day readmission in a cohort of maintenance hemodialysis patients: a retrospective cohort study

 

Patients on Hospitalist run Non-Teaching Service

(n = 451)

Patients on Standard Teaching Service

(n = 633)

p-value

Propensity matched patients on Hospitalist Service (N = 425)

Propensity matched patients on Teaching Service (N = 425)

p-value

Age (years): (n = 1084)

Mean (SD)

61.1(14.8)

61.4(14.1)

0.72

61.6

61.4

0.89

Gender: (n = 1084) n(%)

 Male

215(47.7)

306(48.3)

0.85

198(46.6)

201(47.3)

0.83

 Female

236(52.3)

327(51.7)

 

227(53.4)

224(52.7)

 

Race: (n = 1084) n(%)

 Non Hispanic Black

224(49.7)

322(50.9)

 

209(49.2)

218(51.3)

 

 Non-Hispanic White

21(4.7)

40(6.3)

 

21(5.0)

28(6.6)

 

 Hispanic

116(25.7)

142(22.4)

0.36

113(26.6)

88(20.7)

0.75

 Multiracial

5(1.1)

14(2.2)

 

4(0.9)

10(2.3)

 

 Other

85(18.8)

115(18.2)

 

78(18.3)

81(19.1)

 

Severity of Illness (by quartile)(N = 1084) n(%)

 Extreme

58(12.9)

106(16.8)

 

55(12.9)

65(15.2)

 

 Major

111(24.6)

146(23.1)

0.21

106(24.9)

89(20.9)

1.0

 Moderate

136(30.2)

201(31.8)

 

128(30.1)

132(31.1)

 

 Minor

146(32.4)

180(28.4)

 

136(32.1)

139(32.8)

 

SES (n = 1065 (median (IQR))

(with 0 as NYS mean)

−3.47(−6.45-(−1.55))

02.80(−6.32-(−1.10))

0.003

−3.98

−3.92

0.76

Albumin (mg/dL) (n = 1036) mean (SD)a

3.75(0.03)

3.73(0.03)

0.61

3.74

3.74

0.98

History of Severe Heart Disease (n = 1084)(%)

27(6.0)

69(10.9)

0.005

26(6.2)

24(5.6)

0.77

History of Malignancy (n = 1084) (%)

7(1.1)

7(1.6)

0.59

6(1.5)

5(1.1)

0.52

Charlson score: (n = 1084) median (IQR))

5(3–6)

5(4–6)

0.19

5.2

5.2

0.89

Number of previous admission within 365 days (n = 1084)(median (IQR))

1(0–2)

1(0–2)

0.71

1.95

1.73

0.28

Outcome variables not used in matching

LOS (days) in index hospitalization (n = 1084) Days (median (IQR))

6(3–13)

5(3–10)

0.014

12.1

9.5

0.02

Disposition from index hospitalization (n = 1060) N (%)

 Home (no services)

228(51.5)

281(45.5)

 

207(48.7)

191(44.9)

 

 Skilled Nursing

62(14.0)

131(21.2)

0.004

61(14.3)

84(19.8)

0.52

 Home care

127(28.7)

154(25.0)

 

126(29.6)

108(25.4)

 

 AMAb

15(3.4)

22(3.6)

 

20(4.8)

25(5.9)

 

 Expired/Hospice

11(2.5)

29(4.7)

 

11(2.6)

2(4.0)

 
  1. SES: Socio-economic status; LOS: length of stay
  2. aOnly variable means displayed for the matched samples
  3. b AMA Against medical advice