Table 3 Effects of hospital volume (as a categorical variable) on outcomes in patients with severe acute pancreatitis ( n = 22,551)
From: The effect of hospital volume on patient outcomes in severe acute pancreatitis
Outcomes | Hospital volume | Crude OR or percent change (95% CI) | Adjusted OR or percent change (95% CI) | |
|---|---|---|---|---|
Model 1* | Model 2† | |||
Hospital LOS | ||||
Quartile 1 | Ref. | Ref. | Ref. | |
Quartile 2 | −2.52% (-12.78%, 8.94%) | −15.64% (-24.13%, -6.21%) | −12.95% (-21.22%, -3.82%) | |
Quartile 3 | 0.00% (-11.15%,12.56%) | −16.78% (-25.57%, -7.02%) | −14.95% (-23.46%, -5.50%) | |
Quartile 4 | 0.00% (-4.50%, 23.62%) | −16.36% (-25.05%, -6.05%) | −14.80% (-23.84%, -4.70%) | |
P for trend | 0.909 | 0.005 | 0.007 | |
R-squared | -- | 23.81% | 30.36% | |
Hospital charges | ||||
Quartile 1 | Ref. | Ref. | Ref. | |
Quartile 2 | 8.65% (-4.50%, 23.62%) | −9.99% (-18.65%, -0.41%) | −5.15% (-13.38%, 3.86%) | |
Quartile 3 | 7.39% (-7.63%, 24.85%) | −10.03% (-19.18%, 0.14%) | −5.60% (-14.28%, 3.96%) | |
Quartile 4 | 9.25% (-6.79%, 28.05%) | −11.42% (-20.90%, -0.80%) | −6.79% (-15.92%, 3.33%) | |
P for trend | 0.398 | 0.053 | 0.205 | |
R-squared | -- | 53.89% | 64.16% | |
Hospital mortality | ||||
Quartile 1 | Ref. | Ref. | Ref. | |
Quartile 2 | 0.98 (0.73, 1.31) | 0.58 (0.42, 0.82) | 0.75 (0.49, 1.15) | |
Quartile 3 | 1.09 (0.83, 1.45) | 0.62 (0.45, 0.88) | 0.83 (0.54, 1.26) | |
Quartile 4 | 1.02 (0.77, 1.35) | 0.58 (0.40, 0.83) | 0.75 (0.49, 1.16) | |
P for trend | 0.720 | 0.012 | 0.281 | |
c statistic | -- | 85.4% | 93.0% | |