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Table 5 Results of adjusted Generalized Additive Model and the effect of pollutants on respiratory deaths in women (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)

7.89

1.01

0.97–1.05

0.616

CO (ppm)

4.62

0.98

0.94–1.03

0.438

NO2 (ppb)

3.80

1.06

1.03–1.10

< 0.001

SO2 (ppb)

5.27

0.94

0.89–0.99

0.019

PM10 (μg/m3)

4.53

1.03

1.01–1.04

< 0.001

PM2.5 (μg/m3)

1.83

1.04

0.98–1.10

0.355

Lag 1

O3 (ppb)

4.49

1.02

0.98–1.06

0.270

CO (ppm)

5.39

1.03

0.99–1.08

0.476

NO2 (ppb)

6.29

1.05

1.04–1.09

0.005

SO2 (ppb)

4.33

0.95

0.91–1.00

0.056

PM10 (μg/m3)

5.72

1.01

0.99–1.03

0.063

PM2.5 (μg/m3)

7.23

1.05

1.01–1.09

< 0.001

Lag 2

O3 (ppb)

7.19

1.03

0.99–1.07

0.178

CO (ppm)

5.76

1.04

0.99–1.09

0.694

NO2 (ppb)

3.63

1.04

1.01–1.08

0.010

SO2 (ppb)

5.27

0.94

0.89–0.99

0.029

PM10 (μg/m3)

6.61

1.01

0.99–1.03

0.113

PM2.5 (μg/m3)

2.53

1.03

1.01–1.05

0.003

Lag 3

O3 (ppb)

6.45

1.03

0.98–1.06

0.174

CO (ppm)

4.91

1.04

0.99–1.09

0.421

NO2 (ppb)

2.22

1.05

1.02–1.09

0.003

SO2 (ppb)

1.36

0.96

0.92–1.01

0.132

PM10 (μg/m3)

5.96

1.01

0.99–1.03

0.071

PM2.5 (μg/m3)

2.41

1.03

0.98–1.07

0.067

Mean Lag 4–8

O3 (ppb)

3.31

1.01

0.96–1.04

0.801

CO (ppm)

5.29

0.98

0.96–1.01

0.124

NO2 (ppb)

4.88

1.05

1.01–1.08

0.011

SO2 (ppb)

4.61

0.95

0.90–1.00

0.052

PM10 (μg/m3)

6.93

1.00

0.98–1.02

0.589

PM2.5 (μg/m3)

2.68

0.95

0.90–1.01

0.131