Table 1.
Epidemiologic and clinical characteristics, sleep variables of 1816 rural Chinese adults aged 18–65 years, Anqing, China.
| TST group | Males | Females | ||||
|---|---|---|---|---|---|---|
| <7H | 7–9H | ≥9H | <7H | 7–9H | ≥9H | |
|
|
||||||
| Number | 159 | 543 | 331 | 107 | 418 | 258 |
| Primary outcome | ||||||
| SBP, mmHg | 117±17 | 116±16 | 118±17 | 114±18 | 108±14 | 110±17* |
| DBP, mmHg | 72±12 | 72±11 | 72±10 | 69±11 | 66±10 | 67±9* |
| PP, mmHg | 45±12 | 44±12 | 46±13 | 45±12 | 42±9 | 43±12* |
| HBP, n(%) | 38(23.9) | 95(17.5) | 76(23.0) | 18(16.8) | 28(6.7) | 26(10.1)* |
| IHSBP, n(%) | 17(10.7) | 46(8.5) | 46(13.9)* | 10(9.4) | 8(1.9) | 10(3.9)* |
| IHDBP, n(%) | 2(1.3) | 13(2.4) | 9(2.7) | 1(0.9) | 5(1.2) | 3(1.2) |
| HSDBP, n(%) | 19(12.0) | 35(6.5) | 20(6.0) | 7(6.5) | 13(3.1) | 12(4.7) |
| Clinical Characteristics | ||||||
| BMI, Kg/m2 | 21.4±2.5 | 21.5±2.7 | 21.5±2.7 | 22.4±2.9 | 21.8±2.6 | 21.7±2.5 |
| %BF, % | 13.6±6.8 | 13.6±7.3 | 13.5±7.2 | 30.3±6.1 | 28.5±6.0 | 28.4±5.7* |
| HR, bpm | 74±9 | 74±9 | 75±10 | 75±8 | 74±8 | 74±7 |
| Obesity (BMI≥25), n(%) | 9(5.7) | 60(11.1) | 34(10.3) | 22(20.6) | 47(11.2) | 26(10.1)* |
| High risk of sleep apnea, n(%) | 7(4.4) | 29(5.3) | 16(4.8) | 2(1.9) | 20(4.8) | 6(2.3) |
| Sleepiness(Epworth>10), n(%) | 8(5.0) | 11(2.0) | 8(2.4) | 5(4.7) | 26(6.2) | 15(5.8) |
| Poor sleep quality, n(%) | 88(55.4) | 118(21.7) | 55(16.6)* | 41(38.3) | 110(26.3) | 58(22.5)* |
| Epidemiologic Characteristics | ||||||
| Age, years | 37.5±14.5 | 36.2±14 | 34.5±13.4 | 34.2±13.0 | 34.6±11.2 | 33.3±11.9 |
| Smoking, n(%) | 136(85.5) | 480(88.4) | 290(87.6) | 85(79.4) | 307(73.4) | 200(77.5) |
| Alcohol, n(%) | 58(36.5) | 201(37.1) | 116(35.3) | 2(1.9) | 10(2.4) | 9(3.5) |
| PA, n(%)I | 24(15.1) | 81(14.9) | 74(22.4)* | 20(18.7) | 85(20.3) | 61(23.6) |
| II | 45(28.3) | 135(24.9) | 58(17.5) | 17(15.9) | 88(21.1) | 56(21.7) |
| III | 64(40.3) | 241(44.4) | 158(47.7) | 51(47.7) | 186(44.5) | 113(43.8) |
| Missing | 26(16.4) | 86(15.8) | 41(12.4) | 19(17.8) | 59(14.1) | 28(10.9) |
| Physical Labor, n(%) | 96(60.4) | 315(58.0) | 202(61.0) | 76(71.0) | 339(81.1) | 198(76.7) |
| Menopause in females, n(%) | 16(15.0) | 47(11.2) | 31(12.0) | |||
Results are mean±SD or n(%)
TST: total sleep time; SBP: systolic blood pressure; DBP: diastolic blood pressure; PP: pulse pressure; HBP: High Blood pressure-defined as SBP≥130 and/or DBP≥85 mmHg or diagnosed hypertension; IHSBP: Isolated High systolic blood pressure-defined as SBP≥130 mmHg and DBP<85mmHg; IHDBP: Isolated High diastolic blood pressure-defined as DBP≥85mmHg and SBP<130mmHg; HSDBP: high systolic-diastolic BP-defined as SBP≥130 and DBP≥85mmHg; BMI: body mass index; %BF: percent body fat; HR: heart rate; PA: physical activity;
*
p<0.05, P is a 2-sided comparison among three TST groups in both gender.