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Table 3 Odds ratios calculated via different lag-day model structures

From: Associations between short-term exposure to gaseous pollutants and pulmonary heart disease-related mortality among elderly people in Chengdu, China

Air pollutants

Lag (days)

OR

OR 95% CI

Lower

upper

SO2

0

1.053 a

1.029

1.079

 

1

1.078 a

1.053

1.104

2

1.048 a

1.024

1.073

3

1.017

0.995

1.040

01

1.086 a

1.057

1.116

02

1.095 a

1.064

1.128

03

1.090 a

1.056

1.124

NO2

0

1.046 a

1.031

1.062

 

1

1.062 a

1.046

1.078

2

1.050 a

1.034

1.066

3

1.032 a

1.016

1.048

01

1.064 a

1.047

1.082

02

1.074 a

1.054

1.093

03

1.077 a

1.056

1.098

CO

0

1.004

0.997

1.012

 

1

1.004

0.997

1.011

2

0.996

0.989

1.004

3

0.995

0.988

1.003

01

1.008

0.998

1.017

02

1.004

0.993

1.015

03

1.000

0.988

1.013

O3

0

1.006

0.976

1.037

 

1

1.034 a

1.008

1.061

2

1.055 a

1.031

1.080

3

1.011

0.988

1.034

01

1.037 a

1.000

1.074

02

1.076 a

1.036

1.117

03

1.070 a

1.029

1.113

PM2.5

0

1.032 a

1.018

1.047

 

1

1.038 a

1.023

1.053

2

1.028 a

1.013

1.042

3

1.013

0.999

1.027

01

1.042 a

1.026

1.058

02

1.045 a

1.027

1.062

03

1.043 a

1.025

1.062

  1. Abbreviations: SO2 sulfur dioxide, NO2 nitrogen dioxide, CO carbon monoxide, O3 ozone, PM2.5 particulate matter less than 2.5 μm in aerodynamic diameter, OR odds ratio, CI confidence interval
  2. aP < 0.05