Table 5.

Length of hospital stay according to the patient volume of the hospital

Patient volume	n	Length of stay (days)		Analysis of mixed model
		Geometric mean	95% CI	p value	Estimates for reference population
					Estimates	95% CI
1–10	998	24.6	2.7–227.5	–	18.1	16.4–20.0
11–20	863	20.8	2.2–194.4	0.256	16.6	14.5–18.9
21–50	1109	18.4	1.5–221.1	0.854	18.4	15.8–21.5
51–100	1480	16.0	1.4–182.9	0.181	15.8	13.2–18.9
≧101	1692	10.0	0.8–124.5	0.001	11.5	8.9–14.9