Ambient air pollutants are associated with morning serum cortisol in overweight and obese Latino youth in Los Angeles

Table 3 Associations of Monthly Ambient O₃ 24-h adjusted for NO₂ and PM_2.5 with Fasting Serum Cortisol in 203 Latino Children Enrolled in the SOLAR Study

	O₃24-h_Max, Unadjusted			O₃ 24-h^a			O₃24-h + NO₂^a			O₃24-h + PM_2.5^a
Monthly Time Lag	β	95% CI	p-value	β	95% CI	p-value	β	95% CI	p-value	β	95% CI	p-value
1-month	0.06	0.01, 0.11	0.03	0.08	−0.02, 0.17	0.11	0.07	−0.03, 0.18	0.18	0.07	−0.02, 0.17	0.13
2-month	0.07	0.02, 0.13	0.01	0.1	0.01, 0.09	0.03	0.1	− 0.01, 0.2	0.07	0.1	0.02, 0.19	0.02
3-month	0.08	0.02, 0.14	0.01	0.1	0.02, 0.17	0.02	0.08	− 0.03, 0.19	0.14	0.09	0.01, 0.17	0.02
4-month	0.09	0.02, 0.15	0.01	0.1	0.02, 0.17	0.02	0.04	− 0.08, 0.16	0.52	0.07	−0.001, 0.15	0.05
5-month	0.09	0.03, 0.16	0.01	0.1	0.02, 0.17	0.01	0.01	−0.12, 0.14	0.87	0.06	−0.02, 0.14	0.13
6-month	0.1	0.01, 0.19	0.04	0.1	0.02, 0.17	0.01	0.001	−0.14, 0.14	0.99	0.05	−0.03, 0.14	0.22
7-month	0.1	0.01, 0.19	0.04	0.1	0.01, 0.19	0.04	−0.001	−0.15, 0.14	0.98	0.06	−0.04, 0.15	0.25
8-month	0.09	− 0.01, 0.2	0.09	0.1	−0.01, 0.21	0.07	0.002	− 0.15, 0.16	0.98	0.06	−0.06, 0.17	0.32
9-month	0.08	−0.04, 0.21	0.12	0.09	−0.04, 0.22	0.15	−0.01	− 0.18, 0.17	0.95	0.06	−0.07, 0.19	0.36
10-month	0.08	−0.06, 0.22	0.27	0.08	−0.06, 0.23	0.26	−0.02	− 0.21, 0.17	0.83	0.06	−0.08, 0.21	0.4
11-month	0.09	−0.06, 0.23	0.25	0.08	−0.08, 0.23	0.32	− 0.01	− 0.21, 0.18	0.9	0.06	−0.09, 0.22	0.41
12-month	0.12	−0.03, 0.26	0.11	0.1	−0.06, 0.25	0.22	0.03	−0.17, 0.23	0.78	0.09	−0.07, 0.24	0.27

NO₂ Nitrogen dioxide, O₃ Ozone 8-h maximum daily, PM_2.5 Particulate matter with aerodynamic diameter < 2.5 μm, 95% CI 95% Confidence Interval; Results should be interpreted by original scaled variables
^aLinear regression models adjusted for a priori covariates of age, sex, pubertal status, total body fat percentage, social position, season (warm/cool)

ISSN: 1476-069X