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Table 3 Outcome variables of the URGENT project

From: Unplanned readmission prevention by a geriatric emergency network for transitional care (URGENT): a prospective before-after study

Outcome

All patients

Intervention cohort

Control cohort

Unweighted analysis

Weighted analysisc

Ratio

P-value

Ratio

P-value

Unplanned ED readmission (at 30 days), N/D (%)

205/1625 (12.6%)

112/857 (13.1%)

93/768 (12.1%)

1.10 (0.85;1.42)

0.49

1.15 (0.89;1.48)

0.28

Unplanned ED readmission (at 90 days), N/D (%)

375/1625 (23.1%)

205/857 (23.9%)

170/768 (22.1%)

1.08 (0.91;1.29)

0.38

1.16 (0.97;1.38)

0.11

Time to unplanned ED readmission within 90 days, days, Me (Min-Max)

26.9 (0.2–88.3)

27.6 (0.2–88.0)

25.1 (0.3–88.3)

0.98 (0.80;1.21)

0.88

0.96 (0.78;1.17)

0.66

Hospitalization rate, N/D (%)

1152/1680 (68.6%)

620/886 (70.0%)

532/794 (67.0%)

1.15 (0.93;1.41)

0.19

1.37 (1.12;1.69)

0.003a

Length of ED stay, hours, Me (Min - Max)

16.1 (1.3–110.3)

12.7 (1.4–61.2)

19.1 (1.3–110.3)

0.84 (0.79;0.89)

<.001a

0.89 (0.84;0.95)

<.001a

Length of inhospital stay, days, Me (Min-Max)

8.7 (0.3–77.5)

8.6 (0.6–76.1)

8.7 (0.3–77.5)

0.97 (0.86;1.09)

0.60

0.92 (0.81;1.03)

0.15

Higher level of care (at hospital discharge), N/D (%)

229/1625 (14.1%)

124/857 (14.5%)

105/768 (13.7%)

1.03 (0.81;1.30)

0.82

1.05 (0.83;1.33)

0.69

Higher level of careb (at 30 days), N/D (%)

37/500 (7.4%)

20/252 (7.9%)

17/248 (6.9%)

1.16 (0.62;2.16)

0.65

1.28 (0.70;2.34)

0.42

Higher level of careb (at 90 days), N/D (%)

36/489 (7.4%)

19/248 (7.7%)

17/241 (7.1%)

1.09 (0.58;2.04)

0.80

1.42 (0.78;2.58)

0.26

Functional declineb (at 30 days), N/D (%)

113/476 (23.7%)

61/236 (25.9%)

52/240 (21.7%)

1.19 (0.86;1.65)

0.29

1.39 (1.01;1.92)

0.04a

Functional declineb (at 90 days), N/D (%)

115/479 (24.0%)

63/237 (26.6%)

52/242 (21.5%)

1.30 (0.91;1.86)

0.15

1.51 (1.06; 2.14)

0.02a

Post-hospitalization Mortality (at 90 days), N/D (%)

97/1625 (6.0%)

48/857 (5.6%)

49/768 (6.4%)

0.85 (0.56;1.28)

0.44

1.07 (0.71;1.62)

0.73

  1. ED emergency department, Me median, Min minimum, Max maximum, N Numerator, D Denominator
  2. aStatistical significant with alpha = .05
  3. bData only available for patients without hospitalization after index ED visit
  4. cWeighted analysis: result of comparison after application of inverse probability of treatment weighting
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