N % 95% CI
Normal 60 69.7 59.3– 79.1
Restrictive 17 19.8 11.6– 29.1
Obstructive 9 10.5 4.7– 17.4
n: frequency
95% CI: confidence interval of 95% (bootstrap; based on 1000 bootstrap samples) Classification according to reference standards of Polgar and Promadhat modified by Pereira, 1992
Confidence interval obtained through simulation with a thousand samples
Table 2: Frequency children’s according to the ventilatory pattern observed spirometry base using FEV1.
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