Table 1.
Analysis of basic characteristics of hypertension and nonhypertension.
| Variables | Hypertension (n, %) | Nonhypertension (n, %) | t/χ2 | P value |
|---|---|---|---|---|
| Age (years, mean ± sd) | 66.5 ± 10.5 | 51.9 ± 16.5 | 22.726a | < 0.001 |
| BMI(kg/m2, mean ± sd) | 24.5 ± 3.4 | 23.1 ± 3.2 | 9.886a | < 0.001 |
| Gender | 0.084b | 0.772 | ||
| Male | 318(28.2) | 809(71.8) | ||
| Female | 447(27.7) | 1166(72.3) | ||
| Age | 353.739b | < 0.001 | ||
| 15 ~ 44 | 28(4.0%) | 670(96.0%) | ||
| 45 ~ 59 | 438(30.2%) | 1014(69.8%) | ||
| ≥ 60 | 299(50.7%) | 291(49.3%) | ||
| Place of residence | 5.158b | 0.076 | ||
| City | 522(26.8%) | 1424(73.2%) | ||
| Rural | 90(33.0%) | 183(67.0%) | ||
| The rural–urban junction | 153(29.4%) | 368(70.6%) | ||
| Educational level | 168.739b | < 0.001 | ||
| No formal schooling | 21(35.0%) | 39(65.0%) | ||
| Primary school | 247(44.0%) | 315(56.0%) | ||
| Junior high school | 236(30.1%) | 549(69.9%) | ||
| High school | 199(27.3%) | 530(72.7%) | ||
| College degree or above | 62(10.3%) | 542(89.7%) | ||
| Smoking | 1.205b | 0.272 | ||
| Yes | 197(29.6%) | 469(70.4%) | ||
| No | 568(27.4%) | 1506(72.6%) | ||
| Drinking | 0.333b | 0.564 | ||
| Yes | 142(29.0%) | 348(71.0%) | ||
| No | 623(27.7%) | 1627(72.3%) | ||
| Diabetes | 186.344b | < 0.001 | ||
| Yes | 183(61.4%) | 115(38.6%) | ||
| No | 582(23.8%) | 1860(76.2%) | ||
| Dyslipidemia | 231.503b | < 0.001 | ||
| Yes | 248(58.4%) | 177(41.6%) | ||
| No | 517(22.3%) | 1798(77.7%) | ||
| BMI | 85.903b | < 0.001 | ||
| Underweight | 16(12.1%) | 116(87.9%) | ||
| Normal weight | 341(22.9%) | 1147(77.1%) | ||
| Overweight | 317(35.7%) | 572(64.3%) | ||
| Obesity | 89(43.6%) | 115(56.4%) |
aStudent's t-test,
bChi-square test; BMI: body mass index.