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Table 8 Results of adjusted Generalized Additive Model and the effect of pollutants on respiratory deaths in peoples over 60 years old (for 1 unit increase in CO and 10 units increase in all other pollutants)

From: The relation between air pollution and respiratory deaths in Tehran, Iran- using generalized additive models

 

Lag

df

RR

95% CI for RR

P- Value

Lag 0

O3 (ppb)

8.18

1.04

1.00–1.07

0.024

CO (ppm)

4.39

0.98

0.95–1.02

0.312

NO2 (ppb)

3.38

1.05

1.02–1.08

0.001

SO2 (ppb)

2.58

0.96

0.92–0.99

0.033

PM10 (μg/m3)

7.29

1.03

1.02–1.04

< 0.001

PM2.5 (μg/m3)

2.64

1.03

1.01–1.06

0.039

Lag 1

O3 (ppb)

3.48

1.04

1.00–1.07

0.027

CO (ppm)

6.44

0.97

0.93–1.00

0.054

NO2 (ppb)

4.67

1.04

1.01–1.07

0.01

SO2 (ppb)

2.91

0.95

0.91–0.99

0.023

PM10 (μg/m3)

5.77

1.02

1.01–1.03

0.005

PM2.5 (μg/m3)

2.55

1.04

1.02–1.08

0.002

Lag 2

O3 (ppb)

4.02

1.03

1.00–1.06

0.041

CO (ppm)

7

1.01

0.96–1.07

0.232

NO2 (ppb)

3.86

1.04

1.01–1.07

0.006

SO2 (ppb)

3.57

0.95

0.91–0.98

0.009

PM10 (μg/m3)

6.24

1.01

1.00–1.03

0.038

PM2.5 (μg/m3)

1.7

1.03

1.01–1.05

0.007

Lag 3

O3 (ppb)

4.78

1.03

0.99–1.06

0.065

CO (ppm)

5.09

1.03

0.99–1.07

0.212

NO2 (ppb)

2.89

1.04

1.01–1.07

0.003

SO2 (ppb)

1.34

0.95

0.91–0.98

0.01

PM10 (μg/m3)

5.81

1.01

1.00–1.03

0.026

PM2.5 (μg/m3)

2.11

1.02

0.98–1.04

0.265

Mean Lag 4–8

O3 (ppb)

3.18

1.03

0.99–1.06

0.078

CO (ppm)

5.05

1.03

0.99–1.07

0. 241

NO2 (ppb)

4.98

1.05

1.02–1.08

0.006

SO2 (ppb)

7.87

0.92

0.89–0.96

0.001

PM10 (μg/m3)

7.83

1.01

1.00–1.03

0.035

PM2.5 (μg/m3)

1.35

0.96

0.92–1.01

0.11