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Table 2 Associations of Monthly Ambient O3 8-h adjusted for NO2 and PM2.5 with Fasting Serum Cortisol in 203 Latino Children Enrolled in the SOLAR Study

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

 

O3 24-hMax, Unadjusted

O3 8-hMax,a

O3 8-hMax, + NO2a

O3 8-hMax, + PM2.5a

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

0.05

0.01, 0.08

0.01

0.07

0.02, 0.12

0.01

0.07

0.01, 0.12

0.02

0.07

0.01, 0.12

0.02

2-month

0.05

0.02, 0.08

0.003

0.07

0.02, 0.11

0.01

0.06

0.01, 0.11

0.02

0.07

0.02, 0.12

0.004

3-month

0.05

0.02, 0.09

0.003

0.06

0.02, 0.1

0.01

0.05

−0.001, 0.1

0.05

0.06

0.02, 0.1

0.01

4-month

0.05

0.02, 0.09

0.01

0.05

0.01, 0.09

0.01

0.03

− 0.03, 0.09

0.3

0.04

0.003, 0.08

0.04

5-month

0.05

0.01, 0.09

0.01

0.05

0.01, 0.1

0.01

0.01

−0.5, 0.08

0.66

0.03

− 0.01, 0.08

0.14

6-month

0.06

0.01, 0.1

0.02

0.06

0.01, 0.1

0.02

0.01

−0.06, 0.08

0.82

0.03

− 0.02, 0.08

0.26

7-month

0.05

−0.001, 0.11

0.05

0.06

0.003, 0.12

0.04

0.01

−0.07, 0.09

0.83

0.03

−0.03, 0.09

0.32

8-month

0.05

− 0.01, 0.12

0.12

0.06

− 0.01, 0.13

0.08

0.01

−0.07, 0.09

0.8

0.03

−0.04, 0.1

0.43

9-month

0.04

−0.03, 0.12

0.25

0.05

−0.02, 0.13

0.16

0.01

−0.08, 0.10

0.84

0.03

−0.05, 0.1

0.51

10-month

0.04

−0.04, 0.12

0.3

0.05

−0.03, 0.13

0.25

0.01

−0.09, 0.10

0.87

0.03

−0.05, 0.11

0.49

11-month

0.05

−0.03, 0.13

0.23

0.05

−0.04, 0.13

0.26

0.02

−0.08, 0.11

0.74

0.04

−0.05, 0.12

0.39

12-month

0.07

−0.01, 0.15

0.1

0.06

−0.03 0.15

0.16

0.04

−0.06, 0.13

0.46

0.05

−0.03, 0.14

0.22

  1. NO2 Nitrogen dioxide, O3 Ozone 8-h maximum daily, PM2.5 Particulate matter with aerodynamic diameter < 2.5 μm, 95% CI 95% Confidence Interval; Results should be interpreted by original scaled variables
  2. aLinear regression models adjusted for a priori covariates of age, sex, pubertal status, total body fat percentage, social position, season (warm/cool)