TABLE 7.

Comparison of False-Negative Results for the Different Procedures

ProcedureNo. of Cases
Mild Intermittent*Mild PersistentModerate PersistentTotal
Full procedure27 (58%)11 (23%)9 (19%)47 (100%)
Without step test32 (58%)13 (24%)10 (18%)55 (100%)
Questionnaire (broad)16 (52%)7 (22%)8 (26%)31 (100%)
Questionnaire (narrow)42 (48%)21 (24%)24 (28%)87 (100%)
  • * Asthma severity.