International Journal of Hypertension

Research Article

C-Reactive Protein Levels in relation to Incidence of Hypertension in Chinese Adults: Longitudinal Analyses from the China Health and Nutrition Survey

Table 3

Univariate analysis of the incidence of hypertension and its contribution.


Variable	b	SE	p	OR	95% CI	R²

hs-CRP (ref = 0 ≤ hs-CRP < 1)
1 ≤ hs-CRP < 3	0.489	0.093	<0.001	1.630	(1.359, 1.956)	0.016
3 ≤ hs-CRP < 10	0.679	0.116	<0.001	1.971	(1.570, 2.476)	0.016
Systolic blood pressure	0.051	0.004	<0.001	1.052	(1.044, 1.061)	0.076
Age	0.038	0.003	<0.001	1.039	(1.032, 1.045)	0.063
Diastolic blood pressure	0.062	0.006	<0.001	1.065	(1.052, 1.078)	0.052
Waist circumference	0.039	0.004	<0.001	1.040	(1.032, 1.048)	0.039
BMI (ref ≤ 18.5)
18.5 ≤ BMI < 24	0.168	0.151	0.264	1.183	(0.880, 1.591)	0.024
BMI ≥ 24	0.754	0.153	<0.001	2.127	(1.575, 2.874)	0.024
Educational level (ref = primary school or below)
Middle school	−0.456	0.080	<0.001	0.634	(0.542, 0.741)	0.018
Technical or vocational degree	−0.719	0.178	<0.001	0.487	(0.343, 0.691)
College and above	−0.755	0.214	<0.001	0.470	(0.309, 0.715)
Total cholesterol	0.006	0.001	<0.001	1.007	(1.005, 1.009)	0.017
LDL-C	0.006	0.001	<0.001	1.006	(1.004, 1.008)	0.013
Glucose	0.008	0.001	<0.001	1.008	(1.005, 1.011)	0.009
Area (ref = urban)	0.388	0.088	<0.001	1.475	(1.241, 1.753)	0.008
Nationality (ref = Han)	0.508	0.129	<0.001	1.661	(1.290, 2.139)	0.006
Total triglyceride	0.001	0.001	<0.001	1.001	(1.001, 1.002)	0.005
Alcohol consumption (ref = yes)	−0.135	0.079	0.090	0.874	(0.747, 1.021)	0.001
Sex (ref = male)	−0.119	0.076	0.110	0.887	(0.764, 1.031)	0.001
Sleep duration (ref = 6 < h ≤ 8)
≤6 h	0.107	0.124	0.391	1.113	(0.872, 0.420)	<0.001
≥9 h	−0.001	0.093	0.986	0.098	(0.831, 1.199)	<0.001
Smoking status (ref = yes)	−0.053	0.082	0.519	0.949	(0.808, 1.114	<0.001
HDL-C	−0.001	0.002	0.740	0.999	(0.995, 1.004)	0.000
HOMA-IR	<0.001	<0.001	0.889	1.001	(0.987, 1.105)	0.000

BMI: body mass index; hs-CRP: high-sensitivity C-reactive protein; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; HOMA-IR: the homeostasis model assessment of insulin resistance; SE: standard error; OR: odds ratio; CI: confidence interval.