Table 2.

Prevalence of wheezing outcome over the three-year study period.

Study Visit	Number of participants who responded to questions pertaining to the wheezing outcome on the INSPIRE questionnaire*	Number of wheezing episodes
		No Wheezing Episodes n (%)	1–3 Wheezing Episodes n (%)	4–12 Wheezing Episodes n (%)	>12 Wheezing Episodes n (%)
Year 1	1,761	1,291 (73.3%)	353 (20.1%)	85 (4.8%)	32 (1.8%)
Year 2	1,673	1,278 (76.4%)	293 (17.5%)	84 (5.0%)	18 (1.1%)
Year 3	1,340	1,063 (79.3%)	211 (15.8%)	55 (4.1%)	11 (0.8%)

^*Among the 97% of infants in whom the newborn metabolic screening data were linked.