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. 2018 Sep 16;10(9):200–209. doi: 10.4253/wjge.v10.i9.200

Table 4.

Association of admission to a non-index hospital during the first readmission (care fragmentation) with in-hospital costs, length of stay, mortality, and 60-d readmission

30-d first readmission
Readmission to index hospital Readmission to non-index hospital Comparison P
Total cost for first readmission, mean/median (IQR) $12311/$7508 $15645/$8598 Difference in cost: 3803$ (2777-4829)1 < 0.0001
($4659-$13204) ($5281-$15472)
Length of stay in days, mean (SD) 5.8 (6.5) 6.5 (8.2) Adjusted HR (95%CI): 1.07 (1.01-1.13)2 0.03
In-hospital Mortality 1.30% 1.00% Adjusted OR (95%CI): 0.84
0.95 (0.57-1.57)3
60-d readmission 54.60% 55.30% Adjusted HR (95%CI): 0.99 (0.94-1.06)4 0.99
1

Results from multivariable linear regression including age, sex, and Elixhauser mortality score;

2

Results from multivariable proportional hazards model including age, sex, Elixhauser readmission index. The risk predicted in the length of stay analysis is for later discharge from the hospital, HR > 1 indicates increased risk of later discharge;

3

Results from multivariable logistic regression model including age, sex, Elixhauser mortality score;

4

Results from multivariable proportional hazards model including age, sex, Elixhauser readmission index, and discharge disposition. HR: Hazard ratio; CI: Confidence interval; OR: Odds ratio.