Research Article
Validation of the ISAAC Standardized Questionnaire Used by Schoolchildren from Mexicali, Baja California, Mexico
Table 1
Descriptive statistics and main outcomes of the study population according to the information obtained by ISAAC questionnaire and clinical tests.
| | Variables | Asthmatics
()a | Nonasthmatics
()a | valueb | | Mean (SD) | Mean (SD) |
| | Age, yrs | 12.7 (0.7) | 12.6 (0.8) | 0.613 | | Height, m | 1.6 (0.1) | 1.6 (0.1) | 0.586 | | Gender (male), % | 39.1 | 40.9 | 0.537 | | Basal pulmonary function, L | | | | | FEV1 | 2.8 (0.4) | 2.6 (0.5) | 0.294 | | FVC | 3.2 (0.5) | 3.1 (0.6) | 0.247 | | | 3.2 (0.9) | 3.1 (0.9) | 0.719 | | FEV1/ FVC | 0.86 (0.05) | 0.86 (0.07) | 0.757 | | logFeNO | 2.4 (0.7) | 2.6 (0.8) | 0.301 | | %cFEV1 | 3.2 (5.9) | 1.7 (6.3) | 0.294 | | %cFEV1 ≥ 12, % (%) | 8.7 | 3.3 | 0.264 | | Atopics % | 82.6 | 39.6 | 0.000 |
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According to ISAAC questionnaire.
b
cAverage change between pre- and postspirometry.
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