Table 4. Subgroup analysis between the elder and middle-young populations.
| Items | 1999–2000 | 2017–2018 | |||||
|---|---|---|---|---|---|---|---|
| ≥65 | <65 | P value | ≥65 | <65 | P value | ||
| N (%) | 201 (69.6) | 88 (30.4) | – | 239 (62.6) | 143 (37.4) | – | |
| SBP (mmHg) | 145 [132–161] | 134 [122–146] | <0.001 | 137 [127–153] | 129 [118–139] | <0.001 | |
| DBP (mmHg) | 69 [61–76] | 76 [69–83] | 0.001 | 68 [58–77] | 75 [67–81] | <0.001 | |
| HTN control rate (%) | 16.8 | 29.9 | 0.034 | 29.4 | 42.7 | 0.018 | |
| Pulse (p.m.) | 68 [62–76] | 70 [62–84] | 0.185 | 66 [60–72] | 70 [62–82] | <0.001 | |
| Proportion of pulse ≤60 p.m. (%) | 24.3 | 23.5 | 0.895 | 31.1 | 18.8 | 0.012 | |
| Total cholesterol (mmol/L) | 5.0 [4.4–5.8] | 5.5 [4.6–6.1] | 0.065 | 4.2 [3.6–4.9] | 4.4 [3.8–5.3] | 0.127 | |
| Triglycerides (mmol/L) | 1.6 [1.2–2.3] | 2.1 [1.5–3.2] | 0.022 | 1.2 [0.8–1.6] | 1.42 [1.0–1.8] | 0.065 | |
| LDL-C (mmol/L) | 3.0 [2.6–3.5] | 2.9 [2.5–3.7] | 0.968 | 2.2 [1.7–2.6] | 2.6 [2.0–3.3] | 0.009 | |
| LDL-C control rate (%) | 6.8 | 3.6 | 0.558 | 30.1 | 19.4 | 0.117 | |
| HDL-C (mmol/L) | 1.1 [1.0–1.4] | 1.1 [0.9–1.3] | 0.311 | 1.2 [1.0–1.5] | 1.1 [1.0–1.4] | 0.016 | |
| Creatinine (μmol/L) | 79.6 [61.9–97.2] | 70.7 [53–79.6] | 0.001 | 97.3 [76.9–118.5] | 76.9 [66.3–88.8] | <0.001 | |
| Urea nitrogen (mmol/L) | 6.4 [5–8.2] | 5.4 [4.6–6.8] | 0.001 | 6.8 [5.4–9.3] | 5.4 [4.3–6.4] | <0.001 | |
| Glucose (mmol/L) | 5.4 [5.00–6.2] | 5.4 [4.8–6.8] | 0.773 | 5.6 [5.1–6.9] | 5.63 [5.1–7.1] | 0.921 | |
| Glycohemoglobin (%) | 5.7 [5.3–6.3] | 5.6 [5.3–6.8] | 0.758 | 6.1 [5.7–6.8] | 5.9 [5.5–6.8] | 0.099 | |
| ACEI/ARB (%) | 40.8 | 35.2 | 0.372 | 58.6 | 55.2 | 0.524 | |
| β-blocker (%) | 33.8 | 29.6 | 0.474 | 61.1 | 58 | 0.557 | |
| CCB (%) | 29.9 | 14.8 | 0.007 | 28 | 16.1 | 0.008 | |
| Diuretic (%) | 35.8 | 21.6 | 0.017 | 38.5 | 27.3 | 0.025 | |
| Statin (%) | 30.9 | 34.1 | 0.586 | 69.5 | 55.2 | 0.005 | |
Data are presented as percent or median [25% percentile, 75% percentile]. SBP, systolic blood pressure; DBP, diastolic blood pressure; HTN, hypertension; p.m., per minute; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol; ACEI, angiotensin converting enzyme inhibitor; ARB, angiotensin receptor blocker; CCB, calcium channel blocker.