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Table 1 The characteristics of the study population at baseline (n = 5097)

From: Sex difference in the incidence of stroke and its corresponding influence factors: results from a follow-up 8.4 years of rural China hypertensive prospective cohort study

Characteristics aMen (n = 2231)Women (n = 2866)P Value b
Age, (years)57.21 ± 11.5255.54 ± 10.97<0.001
BMI,(kg/m2)23.45 ± 3.0124.19 ± 3.63<0.001
SBP, (mmHg)158.01 ± 20.41161.06 ± 21.41<0.001
DBP, (mmHg)94.05 ± 11.9793.91 ± 12.020.691
Blood glucose, (mmol/L)5.70 ± 1.495.70 ± 1.860.896
Total cholesterol, (mmol/L)5.17 ± 1.065.30 ± 1.04<0.001
Triglyceride, (mmol/L)1.65 ± 1.821.75 ± 1.300.030
Salt intake, (g/day)16.7 ± 11.3816.37 ± 12.490.341
LDL-C, (mmol/L)2.72 ± 0.722.86 ± 0.73<0.001
HDL-C, (mmol/L)1.42 ± 0.331.44 ± 0.320.004
Current smoking, n (%)1458 (65.4)587 (20.5)<0.001
Current drinking, n (%)1290 (57.8)213 (7.4)<0.001
Antihypertensive drugs, n (%)412 (18.5)779 (27.2)<0.001
Age, n (%)
 35–44 years356 (16.0)540 (18.8)<0.001
 45–54 years595 (26.7)849 (29.6)
 55–64 years651 (29.2)871 (30.4)
 ≥ 65 years629 (28.2)606 (21.1)
Education degree, n (%)
 Illiteracy and primary school1006 (45.1)1799 (62.8)<0.001
 Junior high school1012 (45.4)953 (33.3)
 High school and above213 (9.5)114 (4.0)
BMI group, n (%)
 <241381 (61.9)1460 (50.9)<0.001
 24–28719 (32.2)1052 (36.7)
 ≥ 28131 (5.9)354 (12.4)
Ethnicity, n (%)
 Han1788 (80.1)2289 (79.9)0.955
 Mongolian411 (18.4)537 (18.7)
 Other32 (1.4)40 (1.4)
Physical activity, n (%)
 Low671 (30.4)1036 (36.5)<0.001
 Moderate879 (39.8)1077 (37.9)
 High656 (29.7)725 (25.5)
History of family hypertension, n (%)  0.032
 None of parents1841 (82.5)2297 (80.1)
 At least one parent390 (17.5)569 (19.9)
History of diabetes, n (%)13 (0.6)27 (0.9)0.149
History of hyperlipidemia, n (%)128 (5.7)169 (5.9)0.810
  1. LDL-C: low-density lipoprotein cholesterol. HDL-C:high-density lipoprotein cholesterol. BMI: Body mass index
  2. SBP: systolic blood pressure. DBP: diastolic blood pressure
  3. a:Population characteristics in the table are percentage or mean (standard deviation)
  4. b:P-values were calculated by t test or chi-square test to compare differences within sex