Table 3.

Trends in the health service use among people with hypertension by comorbidity status in China from 2011 to 2015.

Health Service Use	2011			2013			2015			p Value
	N	Unweighted (%)	Weighted (%)	N	Unweighted (%)	Weighted (%)	N	Unweighted (%)	Weighted (%)
Proportion of outpatient visit	1029	19.72	21.24	1084	23.60	23.38	988	20.62	20.60%	0.105
Without comorbidity	200	11.53	13.65	166	12.98	13.16	179	13.44	14.21%	0.692
With comorbidity	829	23.81	25.43	918	27.70	27.84	809	23.39	23.18%	0.226
Proportion of inpatient visit	577	10.93	10.68	754	16.19	17.68	861	17.72	17.41%	<0.001
Without comorbidity	100	5.72	5.62	93	7.24	14.73	154	11.44	11.82%	<0.001
With comorbidity	477	13.51	13.45	661	19.60	18.95	707	20.12	19.66%	<0.001
Proportion of health education	1717	32.49	33.67	1713	36.71	36.55	1942	39.84	39.79%	<0.001
Without comorbidity	388	22.13	22.87	280	21.72	22.54	413	30.55	30.37%	<0.001
With comorbidity	1329	37.63	39.59	1433	42.43	42.60	1529	43.41	43.57%	<0.001

Note: Unweighted values referred to the results of calculating direct observations and weighted values referred to the results after adjusting the sampling design and nonresponding cases. p values are reported for intertemporal differences of the weighted proportion; health education provided by health professionals includes weight control, exercise, healthy diet and aspects of smoking control.