Table 2.
Comparison of Baseline Characteristics by the Presence or Absence of New-Onset Hypertension
| Variables | Overall (N = 4755) | Not New-Onset Hypertension (N = 3818) | New-Onset Hypertension (N = 937) | P-value |
|---|---|---|---|---|
| Age, years | 57.20 ± 8.30 | 56.90 ± 8.25 | 58.43 ± 8.37 | <0.001 |
| Female, (%) | 2566 (54.0) | 2063 (54.0) | 503 (53.7) | 0.875 |
| Height, cm | 158.05 ± 8.35 | 158.02 ± 8.28 | 158.16 ± 8.65 | 0.649 |
| Weight, kg | 57.38 ± 10.14 | 56.82 ± 9.99 | 59.65 ± 10.47 | <0.001 |
| Smoke, (%) | 1821 (38.3) | 1467 (38.4) | 354 (37.8) | 0.745 |
| Drink, (%) | 1238 (26.0) | 979 (25.6) | 259 (27.6) | 0.227 |
| SBP, mmHg | 118.23 ± 11.51 | 116.78 ± 11.34 | 124.13 ± 10.25 | <0.001 |
| DBP, mmHg | 70.51 ± 8.80 | 69.71 ± 8.69 | 73.76 ± 8.49 | <0.001 |
| Heart rate, times/min | 71.85 ± 9.71 | 71.58 ± 9.62 | 72.94 ± 10.01 | <0.001 |
| Education, (%) | 0.099 | |||
| Primary school or lower | 3215 (67.6) | 2554 (66.9) | 661 (70.5) | |
| Secondary school | 1411 (29.7) | 1159 (30.4) | 252 (26.9) | |
| Higher | 129 (2.7) | 105 (2.8) | 24 (2.6) | |
| Marital status, (%) | 4152 (87.3) | 3350 (87.7) | 802 (85.6) | 0.086 |
| WBC, ×10^9 | 6.09 ± 1.68 | 6.07 ± 1.66 | 6.14 ± 1.75 | 0.286 |
| Platelets, ×10^9 | 209.65 ± 67.32 | 208.46 ± 66.69 | 214.50 ± 69.68 | 0.014 |
| BUN, mg/dl | 15.55 ± 4.10 | 15.54 ± 4.09 | 15.62 ± 4.16 | 0.573 |
| FBG, mg/dL | 103.45 ± 15.25 | 102.58 ± 14.85 | 106.99 ± 16.31 | <0.001 |
| Creatinine, mg/dl | 0.76 ± 0.16 | 0.76 ± 0.16 | 0.77 ± 0.17 | 0.059 |
| Total Cholesterol, mg/dl | 190.67 ± 36.09 | 189.68 ± 35.53 | 194.67 ± 38.05 | <0.001 |
| Triglycerides, mg/dl | 114.69 ± 57.98 | 112.25 ± 56.75 | 124.63 ± 61.80 | <0.001 |
| HDL-C, mg/dL | 52.09 ± 14.67 | 52.46 ± 14.64 | 50.59 ± 14.72 | <0.001 |
| LDL-C, mg/dL | 114.89 ± 32.44 | 114.21 ± 32.03 | 117.64 ± 33.95 | 0.004 |
| hs-CRP, mg/dl | 1.33 ± 1.12 | 1.30 ± 1.11 | 1.45 ± 1.15 | <0.001 |
| HbA1c, % | 5.15 ± 0.43 | 5.14 ± 0.42 | 5.21 ± 0.47 | <0.001 |
| Serum uric acid, mg/dl | 4.28 ± 1.12 | 4.25 ± 1.11 | 4.38 ± 1.16 | 0.002 |
| Hematocrit, % | 41.12 ± 5.92 | 41.00 ± 5.89 | 41.59 ± 6.00 | 0.007 |
| Hemoglobin, g/dl | 14.16 ± 1.92 | 14.13 ± 1.92 | 14.29 ± 1.92 | 0.025 |
| Dyslipidemia, (%) | 252 (5.3) | 186 (4.9) | 66 (7.0) | 0.010 |
| DM, (%) | 172 (3.6) | 121 (3.2) | 51 (5.4) | 0.001 |
| Chronic lung diseases, (%) | 459 (9.7) | 354 (9.3) | 105 (11.2) | 0.083 |
| Cardiovascular disease, (%) | 374 (7.9) | 281 (7.4) | 93 (9.9) | 0.011 |
| Kidney disease, (%) | 301 (6.3) | 236 (6.2) | 65 (6.9) | 0.437 |
| Lipid-lowering drugs, (%) | 253 (5.3) | 187 (4.9) | 66 (7.0) | 0.011 |
| DM-lowering drugs, (%) | 174 (3.7) | 123 (3.2) | 51 (5.4) | 0.002 |
| TyG index | 8.56 (0.54) | 8.53 (0.53) | 8.67 (0.55) | <0.001 |
Note: Data are present as MD ± SD or N (%).
Abbreviations: TyG index, triglyceride glucose index; SBP, systolic blood pressure; DBP, diastolic blood pressure; WBC, white blood cell; BUN, blood urea nitrogen; FBG, fasting blood-glucose; TG, triglycerides; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; hs-CRP, high-sensitivity C-reactive protein; HbA1c, glycosylated hemoglobin; DM, diabetes mellitus; MD, mean deviation; SD, standard deviation.