Table 2 Baseline characteristics of rural Chinese adults ≥18 years old by blood pressure status at follow-up.

From: Body mass index and waist circumference combined predicts obesity-related hypertension better than either alone in a rural Chinese population

Variables

Normotension (n = 7390)

Hypertension (n = 1784)

p value

Men

2887 (39.1)

733 (41.1)

0.117

Age (years)

45.00 (38.00–55.00)

52.00 (43.00–61.00)

<0.001

Education level

 High school or higher education level

851 (11.5)

170 (9.6)

0.135

Smoking

2090 (28.3)

507 (28.4)

0.908

Drinking

970 (13.1)

221 (12.4)

0.405

Physical activity

 Low

3915 (53.0)

961 (53.9)

0.066

 Moderate

1637 (22.2)

352 (19.7)

 

 High

1838 (24.9)

471 (26.4)

 

Family history of hypertension

2152 (29.1)

604 (33.9)

<0.001

BMI (kg/m2)

23.36 (21.36–25.62)

24.42 (22.37–26.63)

<0.001

WC (cm)

79.65 (73.50–86.25)

83.25 (76.75–89.75)

<0.001

GLU (mmol/L)

5.24 (4.92–5.59)

5.37 (5.04–5.74)

<0.001

TC (mmol/L)

4.22 (3.70–4.85)

4.41 (3.88–5.05)

<0.001

TG (mmol/L)

1.25 (0.90–1.78)

1.40 (1.00–1.98)

<0.001

HDL (mmol/L)

1.15 (0.99–1.33)

1.13 (0.97–1.30)

<0.001

LDL (mmol/L)

2.40 (2.00–2.90)

2.60 (2.10–3.00)

<0.001

BNWN*

3842 (52.0)

677 (37.9)

<0.001

BOWN*

913 (12.4)

238 (13.3)

0.259

BNWO*

403 (5.5)

117 (6.6)

0.070

BOWO*

2232 (30.2)

752 (42.2)

<0.001

General obesity

696 (9.4)

252 (14.1)

<0.001

Central obesity

2635 (35.7)

869 (48.7)

<0.001

  1. BMI, body mass index; WC, waist circumference; GLU, glucose; TC, total cholesterol; TG, triglycerides; HDL, high density lipoprotein; LDL, low density lipoprotein.
  2. Data are number (percentage) or median (range).
  3. p value for comparison between normotension and hypertension.
  4. *BNWN, BOWN, BNWO and BOWO defined using BMI (kg/m2) and WC (cm) levels. BNWN, 18.5≤BMI<24, WC<90 for men and WC<80 for women; BOWN, BMI≥24, WC<90 for men and WC<80 for women; BNWO, 18.5≤BMI<24, WC≥90 for men and WC≥80 for women; BOWO, BMI≥24, WC≥90 for men and WC≥80 for women.
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