Early-life exposure to air pollution and greater use of academic support services in childhood: a population-based cohort study of urban children

Table 2 Population at-risk and incident cases of children who received academic support services across time by exposure to benzene, toluene, ethyl benzene and xylene pollutants, New York City Longitudinal Study of Early Development 1994–1998

		Full Population	Population with BTEX greater than 90^th centile for at least one pollutant	Population with BTEX lower than 90^th centile for all pollutants	Population with BTEX greater than 90^th centile for all pollutants	Population with BTEX lower than 90^th centile for at least one pollutant
Time Point	Population at-Risk	Children receiving academic support services for the first time	Children receiving academic support services for the first time	Children receiving academic support services for the first time	Children receiving academic support services for the first time	Children receiving academic support services for the first time
Less than 12 months of age	201559	1004	121	883	77	927
12 months–24 months of age	200555	2599	339	2260	200	2399
24 months–36 months of age	197956	7962	1128	6834	673	7289
Pre-School Special Education	189994	5445	801	4644	460	4985
Kindergarten Special Education	184549	2987	388	2599	208	2779
3rd grade Special Education	181562	16881	2434	14447	1432	15449

ISSN: 1476-069X