Table 2. Distribution of BPs of study participants.
Variables | Total (n=2,103) | Men (n=729) | Women (n=1,374) | p value | |
---|---|---|---|---|---|
Right SBP (mmHg) | 114.3±13.2 | 120.4±12.2 | 111.1±12.6 | <0.001 | |
Right DBP (mmHg) | 73.3±9.9 | 78.6±9.7 | 70.4±8.7 | <0.001 | |
Left SBP (mmHg) | 114.0±13.4 | 120.4±12.8 | 110.6±12.4 | <0.001 | |
Left DBP (mmHg) | 72.8±9.6 | 78.0±9.6 | 70.1±8.5 | <0.001 | |
Overall | <0.001 | ||||
Normal* | 1,296 (61.6) | 289 (39.6) | 1,007 (73.3) | ||
Prehypertension† | 626 (29.8) | 324 (44.4) | 302 (22.0) | ||
Hypertension‡ | 181 (8.6) | 116 (15.9) | 65 (4.7) | ||
Right arm | <0.001 | ||||
Normal* | 1,363 (64.8) | 321 (44.0) | 1,042 (75.8) | ||
Prehypertension† | 576 (27.4) | 306 (42.0) | 270 (19.7) | ||
Hypertension‡ | 164 (7.8) | 102 (14.0) | 62 (4.5) | ||
Left arm | <0.001 | ||||
Normal* | 1,405 (66.8) | 342 (46.9) | 1,063 (77.4) | ||
Prehypertension† | 547 (26.0) | 286 (39.2) | 261 (19.0) | ||
Hypertension‡ | 151 (7.2) | 101 (13.9) | 50 (3.6) | ||
SBP (R–L) (mmHg) | 0.3±4.6 | 0.0±5.3 | 0.5±4.2 | 0.035 | |
DBP (R–L) (mmHg) | 0.5±2.9 | 0.6±3.0 | 0.4±2.9 | 0.061 | |
SBP |R–L| (mmHg) | 3 (1–5) | 3 (2–6) | 3 (1–5) | <0.001 | |
DBP |R–L| (mmHg) | 2 (1–3) | 2 (1–3) | 2 (1–3) | 0.174 | |
SBP |R–L|≥10 (mmHg) | 88 (4.2) | 53 (7.3) | 35 (2.6) | <0.001 | |
DBP |R–L|≥10 (mmHg) | 16 (0.8) | 5 (0.7) | 11 (0.8) | 0.981 |
Data are expressed as mean±standard deviation or numbers (%).
The p value was derived from independent t-test or χ2 test.
BP = blood pressure; DBP = diastolic blood pressure; L = left-arm BP; R = right-arm BP; SBP = systolic blood pressure.
*Normal was defined as SBP <120 mmHg and DBP <80 mmHg; †Prehypertension was defined as 120 mmHg≤ SBP <140 mmHg or 80 mmHg≤ DBP <90 mmHg among non-hypertensive people; ‡Hypertension was defined as SBP ≥140 mmHg or DBP ≥90 mmHg.