Table 2.
Baseline characteristics according to arterial blood pressure (n=660).
| Characteristics | Arterial blood pressure | SBP | DBP | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal (n=282) | Abnormal (n=378) | χ2 or MD | P value | Normal (n=296) | Abnormal (n=364) | χ2 or MD | P value | Normal (n=574) | Abnormal (n=86) | χ2 or MD | P value | |
| Age (years) | 93.52±3.29 | 93.51±3.43 | 0.032 | 0.971 | 93.48±3.29 | 93.54±3.43 | 0.247 | 0.9805 | 93.47±3.29 | 93.77±3.43 | 0.772 | 0.440 |
| Gender*** (Male/Female) | 100/182 | 116/262 | 1.671 | 0.209 | 107/190 | 109/255 | 2.854 | 0.096 | 191/383 | 25/261 | 0.601 | 0.463 |
| Sleep quality | ||||||||||||
| Score | 6.67±2.59 | 6.97±2.66 | 1.564 | 0.139 | 6.71±2.71 | 6.95±2.48 | 1.361 | 0.172 | 6.77±3.01 | 7.31±2.67 | 1.259 | 0.212 |
| Well/Fairly/Poor | 163/56/63 | 222/72/84 | 0.809 | 0.807 | 172/57/67 | 213/71/80 | 0.858 | 0.836 | 333/117/124 | 52/11/23 | 3.326 | 0.334 |
| SE (%) | 79.17±12.64 | 74.56±14.36 | 0.964 | 0.473 | 79.21±11.91 | 74.35±13.44 | 0.996 | 0.469 | 76.34±2.25 | 77.79±2.81 | 0.405 | 0.786 |
| SL (min) | 44.10±13.17 | 47.23±18.11 | 1.006 | 0.235 | 44.35±13.42 | 47.14±17.99 | 0.998 | 0. 347 | 45.99±13.57 | 45.22±11.65 | 0.269 | 0.881 |
| TG (mmol/L) | 1.13±0.45 | 1.29±0.74 | 3.362 | 0.001** | 1.12±0.45 | 1.30±0.74 | 3.534 | <0.0001** | 1.22±0.65 | 1.24±0.54 | 0.818 | 0.231 |
| TC (mmol/L) | 4.10±0.82 | 4.19±0.87 | 1.347 | 0.178 | 4.10±0.82 | 4.19±0.87 | 1.131 | 0.184 | 4.12±0.85 | 4.36±0.79* | 2.476 | 0.014 |
| HDL (mmol/L) | 1.58±0.61 | 1.57±0.57 | 0.759 | 0.222 | 1.58±0.61 | 1. 57±0.57 | 0.759 | 0.222 | 1.57±0.61 | 1.60±0.38 | 0.346 | 0.729 |
| LDL (mmol/L) | 2.21±0.59 | 2.32±1.17 | 1.463 | 0.144 | 2.21±0.59 | 2.32±1.19 | 1.424 | 0.155 | 2.26±1.01 | 2.38±0.59 | 1.080 | 0.281 |
| FBG(mmol/L) | 4.52±1.52 | 4.42±1.40 | 0.795 | 0.427 | 4.52±1.52 | 4.42±1.40 | 0.927 | 0.354 | 4.48±1.52 | 4.57±1.40 | 0.716 | 0.474 |
| SUA (μmol/L) | 321.17±92.73 | 316.88±82.53 | 0.623 | 0.534 | 321.99±92.53 | 31604±82.25 | 0.873 | 0.383 | 319.33±87.91 | 314.70±81.18 | 0.460 | 0.646 |
| BMI | 18.44±3.25 | 19.49±3.85 | 3.672 | <0.0001** | 18.49±3.24 | 19.50±3.88 | 3.510 | <0.0001** | 19.00±3.56 | 19.33±4.13 | 0.452 | 0.345 |
| Smoking habits | ||||||||||||
| Former (No/Yes)*** | 179/97 | 220/150 | 2.695 | 0.260 | 191/99 | 208/148 | 2.566 | 0.084 | 348/213 | 51/34 | 0.281 | 0.869 |
| Current(No/Yes)*** | 157/126 | 209/167 | 0.01 | 0.978 | 161/136 | 205/157 | 0.387 | 0.534 | 317/257 | 46/39 | 0.176 | 0.726 |
| Alcoholic | ||||||||||||
| Former (No/Yes)*** | 170/109 | 216155/ | 0.486 | 0.519 | 176/117 | 210/147 | 0.103 | 0.810 | 345/223 | 41/41 | 3.426 | 0.071 |
| Current(No/Yes)*** | 211/72 | 271/104 | 0.432 | 0.534 | 222/75 | 260/101 | 0.618 | 0.479 | 425/149 | 57/27 | 1.431 | 0.237 |
| Tea habits | ||||||||||||
| Former (No/Yes)*** | 150/126 | 204/165 | 0.056 | 0.853 | 155/135 | 299/156 | 0.438 | 0.525 | 315/248 | 43/39 | 2.304 | 0.156 |
| Current (No/Yes)*** | 159/124 | 222/155 | 0.484 | 0.524 | 164/133 | 217147/ | 1.392 | 0.268 | 337/238 | 44/41 | 0.233 | 0.241 |
| Exercise habits | ||||||||||||
| Former(No/Yes)*** | 184/92 | 243/124 | 0.015 | 0.904 | 154/95 | 233/121 | 0.122 | 0.738 | 374/187 | 29/53 | 0.132 | 0.904 |
| Current (No/Yes)*** | 117/108 | 214/161 | 1.179 | 0.297 | 177/115 | 208/154 | 0.666 | 0.425 | 336/233 | 49/36 | 0.060 | 0.814 |
Baseline characteristics were compared between different arterial blood pressure groups. * P<0.05 ** P<0.01 vs. Normotension. Using χ2 or Fisher’s exact test (where *** an expected cell count was <5) for categorical variables and unpaired Student’s t test for continuous variables. In the testing, a P value <0.05 was considered to be statistically significant. SUA – Serum uric acid; BMI – body mass index; FBG – fasting blood glucose; HDL – high density lipoprotein; LDL – low density lipoprotein; TC – Total cholesterol; TG – Triglyceride; SBP – systolic blood pressure; DBP – Diastolic blood pressure.