Table 2.

Annual medical quality indicators in the Changzhou No. 2 People's Hospital, 2011–2015.

Medical quality indicators	2011	2012	2013	2014	2015	Time series analysis model
						β	P	Trend
Number of hospitalizations (1,000 patients)	30.89	50.35	58.91	67.78	71.36	9.838	0.011	Increasing
Average length of stay (Days)	11.3	11.1	10.3	10.1	10.0	−0.36	0.013	Decreasing
Recovery rate (%)	34.62	30.00	28.10	28.36	25.74	−1.94	0.023	Decreasing
Improvement rate (%)	63.21	67.29	69.85	69.81	72.51	2.112	0.012	Increasing
Invalid rate (%)	1.92	2.44	1.87	1.67	1.63	−0.135	0.226	Stable
Mortality rate (%)	0.26	0.27	0.18	0.16	0.11	−0.041	0.012	Decreasing
Nosocomial infection rate (%)	1.62	2.99	2.10	1.88	1.64	−0.107	0.623	Stable