Deaerated breath pH in children with a residential proximity (A) within 417 meters (<417 meters, n = 25; >417 meters, n = 99) and (B) within 150 meters (<150 meters, n = 10; >150 meters, n = 114) of a major roadway.

<p>Whiskers represent the 10^th to 90^th percentile and dots represent individual data points. Significance testing was adjusted for payor status, race, parental history of asthma, environmental tobacco smoke exposure, and gastroesophageal reflux.</p

Plasma epidermal growth factor (EGF) concentrations in children with a residential proximity (A) within 417 meters (<417 meters, n = 26; >417 meters, n = 91) and (B) within 150 meters (<150 meters, n = 10; >150 meters, n = 108) of a major roadway.

<p>Whiskers represent the 10^th to 90^th percentile and dots represent individual data points. Significance testing was adjusted for payor status, race, parental history of asthma, environmental tobacco smoke exposure, and gastroesophageal reflux.</p

Associations between residential proximity to a major roadway (<150 meters [N = 18] versus >150 meters [N = 206]) and outcomes in asthmatic children identified through exploratory analyses.

1<p>Adjusted for payor status (private insurance versus Medicaid), race (white versus non-white), parental history of asthma (yes versus no), environmental tobacco smoke exposure at least one day per week (yes versus no), and history of gastroesophageal reflux (yes versus no).</p

Airway resistance (Raw) percent predicted values in children with a residential proximity (A) within 417 meters (<417 meters, n = 37; >417 meters, n = 96) and (B) within 150 meters (<150 meters, n = 17; >150 meters, n = 116) of a major roadway.

<p>Whiskers represent the 10^th to 90^th percentile and dots represent individual data points. Significance testing was adjusted for payor status, race, parental history of asthma, environmental tobacco smoke exposure, and gastroesophageal reflux.</p

Associations between residential proximity to a major roadway (<417 meters [N = 56] versus >417 meters [N = 168]) and primary and secondary outcomes in asthmatic children.

1<p>Adjusted for payor status (private insurance versus Medicaid), race (white versus non-white), parental history of asthma (yes versus no), environmental tobacco smoke exposure at least one day per week (yes versus no), and history of gastroesophageal reflux (yes versus no).</p>2<p>Defined as a hospital stay ≥24 hours.</p

Features of the subjects according to residential proximity from a major roadway.

<p>Data represent the mean ± SD or the frequency (%).</p>1<p>Data were logarithmically transformed prior to statistical analysis.</p