Table 1

Characteristics of excluded studies in full text review
Study by year Reason for exclusion
Castro-Rodriguez, 2001[33] Outcome measure defined as FEV and wheeze, rather than physician-diagnosed asthma.
Chinn & Rona, 2001[34] Outcome measure not defined as physician-diagnosed asthma.
Guerra et al., 2004[39] Exposure variable not defined as BMI.
Hancox et al., 2004[42] Population over 18 years of age.
Mai et al., 2005[40] Exposure variable not defined as BMI.
Scholtens et al., 2009[35] Outcome measure defined as wheeze or dyspnea or medication use, rather than physician-diagnosed asthma.
Taveras et al., 2008[36] Outcome measure defined as wheeze, rather than physician-diagnosed asthma. Exposure variable not defined as BMI.
Tollefsen et al., 2007[37] Outcome measure defined as wheeze, rather than physician-diagnosed asthma.
Wake et al., 2010[41] Incident asthma is not primary outcome of the study.
Holguin et al., 2011[43] Population over 18 years of age.
Suglia et al., 2011[44] Cross-sectional analysis.
Magnusson et al., 2012[38] Outcome measure defined as at least 4 episodes of wheeze or 1 episode of wheeze with use of prescribed inhaled steroids, rather than physician-diagnosed asthma.

Egan et al.

Egan et al. BMC Pediatrics 2013 13:121   doi:10.1186/1471-2431-13-121

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