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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