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. 2012 Aug 15;120(11):1607–1612. doi: 10.1289/ehp.1104242

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The timings of the participants’ first contacts with an asthma counselor in HEAL are shown. Although all HEAL participants were eligible for the intervention, some did not see an asthma counselor until later in the study. Values exclude participants who missed the given assessment (month 6: 29/182; month 12: 23/182). Shaded gray bars represent the interquartile range for the timing of the 6- and 12-month symptom assessment excluding participants who missed the visits.