Table 3.

Adjusted^a odds ratios and 95% confidence intervals for associations between ADHD-suggestive behaviors and benzene, toluene, ethylbenzene, xylene, and combined BTEX, stratified by material hardship among the subset of Early Childhood Longitudinal Study, Birth Cohort 2001 (N=4650).

Parameter			P-value for Interaction
	Adjusted Odds Ratio (95% CI) within stratum of material hardship score ≥ 3 N=300	Adjusted Odds Ratio(95% CI) within stratum of material hardship score < 3 N=4350
Benzene	1.10 (0.62, 1.97)	1.14 (0.93, 1.41)	0.90
Toluene	1.09 (0.86, 1.37)	1.02 (0.94, 1.11)	0.60
Ethyl Benzene	2.50 (0.40, 15.8)	1.23 (0.67, 2.24)	0.45
Xylene	1.19 (0.80, 1.76)	1.02 (0.90, 1.17)	0.47
BTEX, combined	1.77 (0.70, 4.47)b	1.50 (1.09, 2.07)c	0.73

^aAdjusted models include child gender, child race, maternal marital status, socioeconomic status index, neighborhood deprivation index, and an interaction term between BTEX pollutant and material hardship. Models account for complex sampling design and include sampling weights to represent the population of children born in 2001 in the United States. BTEX combined, defined as having greater than the median exposure to all four BTEX pollutants (benzene, toluene, ethylbenzene, and xylene)

^b100 individuals meet criterion to be considered “exposed” to BTEX, combined. Reference group consists of individuals who have less than the median exposure for at least one BTEX pollutant.

^c1900 individuals meet criterion to be considered “exposed” to BTEX, combined. Reference group consists of individuals who have less than the median exposure for at least one BTEX pollutant.