Comparison of forced expiratory volumes before and after bronchodilators in Lima and Tumbes; Peru, 2009–2010
| Lima (n=625) | Tumbes (n=649) | p Value | |
| Sample size | |||
| Boys | 311 | 348 | |
| Girls | 314 | 301 | |
| Mean pre-FVC in litres (SD) | |||
| Boys | 4.36 (0.7) | 3.82 (0.7) | <0.001 |
| % Predicted (SD)* | 110% (13%) | 94.2% (11%) | <0.001 |
| Girls | 3.46 (0.5) | 3.08 (0.4) | <0.001 |
| % Predicted (SD)* | 109% (13%) | 93.7% (12%) | <0.001 |
| Mean pre-FEV1 in litres (SD) | |||
| Boys | 3.83 (0.6) | 3.44 (0.6) | <0.001 |
| % Predicted (SD)* | 111% (13%) | 97% (12%) | <0.001 |
| Girls | 3.08 (0.4) | 2.82 (0.4) | <0.001 |
| % Predicted (SD)* | 109% (12%) | 97% (111%) | <0.001 |
| Mean pre-FEV1/FVC % (SD) | |||
| Boys | 88% (6%) | 90% (6%) | <0.001 |
| Girls | 89% (6%) | 92% (6%) | <0.001 |
| Reversibility, n (%) | 24 (3.8%) | 15 (2.3%) | 0.16 |
| Boys | 11 (3.5%) | 9 (2.6%) | 0.63 |
| Girls | 13 (4.1%) | 6 (2.0%) | 0.14 |
↵* All the percentage predicted values are based on models from Hankinson et al.20 for Mexican-Americans.
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.