The prevalence of isolated systolic hypertension in adult populations from the Han, Uygur and Kazakh ethnic groups in Xinjiang, China

Figures & data

Table I. Participant characteristics (n = 14,618).

Group	Han (n = 5757)	Uighur (n = 4767)	Kazakh (n = 4094)	Total (n = 14618)
Age, years	52.47 ± 12.71	50.7 ± 12.98*	48.63 ± 11.69*,**	50.82 ± 12.62†
BMI, kg/m^2	25.13 ± 3.50	25.84 ± 4.42*	26.56 ± 4.76*,**	25.76 ± 4.22†
SBP, mmHg	132.74 ± 19.96	131.48 ± 21.23*	140.35 ± 25.12*,**	134.43 ± 22.21†
DBP, mmHg	84.97 ± 15.58	80.10 ± 14.88*	88.33 ± 19.69*,**	84.30 ± 16.92†
FBG, mmol/l	5.34 ± 1.78	4.94 ± 1.66*	5.13 ± 1.51*,**	5.15 ± 1.68†
TG, mmol/l	1.72 ± 1.45	1.64 ± 1.22*	1.21 ± 0.93*,**	1.55 ± 1.27†
TC, mmol/l	4.69 ± 1.08	4.36 ± 1.13*	4.78 ± 1.16*,**	4.61 ± 1.13†
HDL-c, mmol/l	1.26 ± 0.45	1.26 ± 0.47	1.29 ± 0.43*,**	1.27 ± 0.45†
LDL-c, mmol/l	2.87 ± 0.91	2.87 ± 0.92	2.90 ± 0.93	2.88 ± 0.92

BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; FBG, fasting blood glucose; TG, triglyceride; TC, total cholesterol; HDL-C, high-density lipoprotein-cholesterol; LDL-C, low-density lipoprotein-cholesterol; *Compared with Han p < 0.05. **Compared with Uighur p < 0.05. †Compared with different ethnic group p < 0.05.

Figure 1. The prevalence of isolated systolic hypertension (ISH) in different age groups.

Table II. Multivariate unconditional logistic regression analysis of isolated systolic hypertension (ISH) risk factors with healthy controls.

Factor	B	S.E.	Wald	df	p	OR	95% CI
Sex	0.332	0.061	29.525	1	0.000	1.394	1.237–1.572
Age			929.179	4	0.000
35–44 years						1
45–54 years	0.916	0.092	98.695	1	0.000	2.500	2.087–2.996
55–64 years	1.729	0.091	358.192	1	0.000	5.633	4.710–6.738
65–74 years	2.548	0.096	698.005	1	0.000	12.785	10.583–15.446
More than 75 years	2.970	0.137	467.428	1	0.000	19.488	14.889–25.509
Ethnic			73.428	2	0.000
Han						1
Uygur	− 0.063	0.071	0.777	1	0.378	0.939	0.817–1.080
Kazakh	0.596	0.081	54.587	1	0.000	1.815	1.550–2.126
BMI			244.432	2	0.000
Normal						1
Overweight	0.657	0.075	77.192	1	0.000	1.929	1.666–2.234
Obesity	1.246	0.080	244.407	1	0.000	3.477	2.974–4.065
Diabetes	0.523	0.109	22.853	1	0.000	1.687	1.361–2.090
TG	0.154	0.069	5.011	1	0.025	1.166	1.019–1.334
TC	0.222	0.068	10.786	1	0.001	1.249	1.094–1.426
Constant	− 3.879	0.106	134.33	1	0.000	0.021

BMI, body mass index; TG, total triglycerides; TC, total cholesterol.

Table III. Multivariate unconditional logistic regression analysis of isolated systolic hypertension (ISH) risk factors with hypertensive patients.

Factor	B	S.E.	Wald	df	p	OR	95% CL
Sex	0.331	0.056	35.118	1	0.000	1.393	1.248–1.554
Age			168.566	4	0.000
35–44 years						1
45–54 years	0.115	0.098	1.370	1	0.242	1.122	0.925–1.360
55–64 years	0.410	0.095	18.623	1	0.000	1.508	1.251–1.817
65–74 years	0.875	0.097	81.774	1	0.000	2.399	1.985–2.901
More than 75 years	1.336	0.139	92.951	1	0.000	3.802	2.898–4.989
BMI			125.529	2	0.000
Normal						1
Overweight	0.504	0.070	51.428	1	0.000	1.656	1.442–1.900
Obesity	0.808	0.072	125.218	1	0.000	2.244	1.948–2.585
Diabetes	0.364	0.095	14.693	1	0.000	1.439	1.195–1.733
Constant	− 3.620	0.088	168.73	1	0.000	0.027