Table 1.
Baseline characteristics of whole study population and by strata of overweight
| Variable | All | Normal weight | Overweight | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n | Estimates | n | Estimates | n | Estimates | ||||
| Female sex | 1132 | 687 | /60.7 | 858 | 545 | /63.5 | 274 | 142 | /51.8 |
| Baseline age (years) | 1132 | 44.8 | (8.7) | 858 | 43.9 | (8.5) | 274 | 47.5 | (8.7) |
| Education primary only | 1132 | 139 | /12.3 | 858 | 83 | /9.7 | 274 | 56 | /20.4 |
| High school | 1132 | 782 | /69.1 | 858 | 599 | /69.8 | 274 | 183 | /66.8 |
| College/university | 1132 | 211 | /18.6 | 858 | 176 | /20.5 | 274 | 35 | /12.8 |
| Baseline FEV1 (L) | 1132 | 3.44 | (0.78) | 858 | 3.45 | (0.76) | 274 | 3.41 | (0.86) |
| FVC (L) | 1132 | 4.38 | (1.00) | 858 | 4.37 | (0.95) | 274 | 4.39 | (1.12) |
| FEV1/FVC (%) | 1132 | 78.8 | (6.7) | 858 | 79.1 | (6.8) | 274 | 77.9 | (6.2) |
| FEF25–75 (L/s) | 1132 | 3.27 | (1.11) | 858 | 3.30 | (1.11) | 274 | 3.16 | (1.10) |
| Change in FEV1 (L) | 1132 | -0.38 | (0.29) | 858 | -0.37 | (0.29) | 274 | -0.42 | (0.31) |
| FVC (L) | 1132 | -0.30 | (0.39) | 858 | -0.27 | (0.38) | 274 | -0.39 | (0.41) |
| FEV1/FVC (%) | 1132 | -3.7 | (5.0) | 858 | -3.9 | (4.8) | 274 | -3.1 | (5.3) |
| FEF25–75 (L/s) | 1132 | -0.73 | (0.67) | 858 | -0.74 | (0.64) | 274 | -0.69 | (0.75) |
| Baseline height (cm) | 1132 | 168 | (9) | 858 | 168 | (9) | 274 | 167 | (10) |
| Baseline weight (kg) | 1132 | 67.4 | (11.9) | 858 | 63.3 | (9.2) | 274 | 80.2 | (10.5) |
| Change in weight (kg)a | 1071 | 6.1 | (5.1) | 824 | 5.7 | (4.9) | 247 | 7.3 | (5.7) |
| Baseline BMI (kg/m2) | 1132 | 23.8 | (3.5) | 858 | 22.3 | (2.1) | 274 | 28.6 | (2.5) |
| Change in BMI (kg/m2) | 1132 | 2.2 | (2.0) | 858 | 2.1 | (1.9) | 274 | 2.4 | (2.5) |
| Follow-up CRP (mg/L) | 1095 | 1 | (0.5/2.1) | 842 | 0.8 | (0.4/1.7) | 253 | 1.7 | (0.9/3.7) |
Estimates are in numbers/% for count data, mean (standard deviation) for continuous data, and median (25th/75th percentile) for CRP
CRP C-reactive protein serum value, values > = 10 mg/L have been excluded, FEV 1 forced expiratory volume in 1 s of expiration, FVC forced vital capacity, FEF 25–75 forced expiratory flow between 25th and 75th percentile of FVC, L liters, s second
aValues ≤−2 kg (the median value of all participants with weight loss) have been excluded