From: 2003 Canadian Asthma Consensus Guidelines Executive Summary
Stringent index* |
---|
   Wheezing on three or more occasions during the first 3 years of life |
   One or more major risk factors†or two or more minor risk factors‡ |
Loose index* |
   Any wheezing during the first 3 years of life |
   One or more major risk factors†or two or more minor risk factors‡ |