Research Article
High-Density Lipoprotein Cholesterol: A Component of the Metabolic Syndrome with a New Role in Lung Function
Table 1
Basic characteristic of the study participants.
| | | Men (n = 1760) | Women (n = 2218) | All (n = 3978) | value |
| | Age (years) | 58.1 ± 8.8 | 53.6 ± 8.3 | 55.6 ± 8.8 | <0.001 | | Educational level (%) | | | | <0.001 | | Primary and nonformal school education | 1026 (58.3) | 1463 (66.0) | 2489 (62.6) | | | Junior high school | 625 (35.5) | 672 (30.3) | 1297 (32.6) | | | Senior high school or above | 109 (6.2) | 83 (3.7) | 192 (4.8) | | | Family income group (%) | | | | 0.087 | | Quartile 1 (<¥10,000) | 400 (22.7) | 449 (20.2) | 849 (21.3) | | | Quartile 2 (¥10,000-¥20,000) | 507 (28.8) | 610 (27.5) | 1117 (28.1) | | | Quartile 3 (¥20,000-50,000) | 398 (22.6) | 525 (23.7) | 923 (23.2) | | | Quartile 4 (>¥50,000) | 455 (25.9) | 634 (28.6) | 1089 (27.4) | | | Smoking | | | | <0.001 | | Heavy (%) | 498 (28.3) | 11 (0.5) | 509 (12.8) | | | Light (%) | 1262 (71.7) | 2207 (99.5) | 3469 (87.2) | | | Alcohol drinking | | | | <0.001 | | Heavy (%) | 261 (14.8) | 21 (0.9) | 282 (7.1) | | | Light (%) | 1499 (85.2) | 2197 (99.1) | 3696 (92.9) | | | BMI (kg/m2) | 25.0 ± 3.3 | 24.8 ± 3.2 | 24.9 ± 3.3 | 0.148 | | WC (cm) | 88.9 ± 10.2 | 86.2 ± 8.8 | 87.4 ± 9.5 | <0.001 | | SBP (mmHg) | 135.1 ± 18.3 | 133.3 ± 18.5 | 134.1 ± 18.4 | 0.002 | | DBP (mmHg) | 83.8 ± 12.4 | 82.2 ± 11.7 | 82.9 ± 12.1 | <0.001 | | FPG (mmol/L) | 5.5 ± 0.8 | 5.4 ± 0.8 | 5.5 ± 0.8 | <0.001 | | TG (mmol/L) | 1.5 ± 0.8 | 1.5 ± 0.7 | 1.5 ± 0.7 | 0.493 | | HDL-C (mmol/L) | 1.3 ± 0.3 | 1.4 ± 0.3 | 1.3 ± 0.3 | <0.001 | | MS (%) | 664 (37.7) | 1075 (48.5) | 1739 (43.7) | <0.001 | | Abdominal obesity | 768 (43.6) | 1680 (75.7) | 2448 (61.5) | <0.001 | | High blood pressure | 1187 (67.4) | 1324 (59.7) | 2511 (63.1) | <0.001 | | High glucose | 727 (41.3) | 780 (35.2) | 1507 (37.9) | <0.001 | | High triglycerides | 624 (35.4) | 802 (36.2) | 1426 (35.8) | 0.646 | | Low levels of HDL-C | 372 (21.1) | 849 (38.3) | 1221 (30.7) | <0.001 | | FVC % predicted | 75.5 ± 15.5 | 77.5 ± 15.4 | 76.6 ± 15.5 | <0.001 | | FVC (L) | 2.7 ± 0.6 | 2.1 ± 0.5 | 2.4 ± 0.6 | <0.001 | | FEV1 % predicted | 75.2 ± 15.2 | 74.2 ± 14.9 | 74.6 ± 15.0 | 0.043 | | FEV1 (L) | 2.1 ± 0.5 | 1.7 ± 0.4 | 1.9 ± 0.5 | <0.001 | | FEV1/FVC ratio | 80.1 ± 11.8 | 80.9 ± 11.5 | 80.6 ± 11.7 | 0.198 | | OLD (%) | 280 (15.9) | 314 (14.2) | 594 (14.9) | 0.068 | | RLD (%) | 883 (50.2) | 1071 (48.3) | 1954 (49.1) | 0.125 |
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