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Table 3 Odds ratios (OR) and 95% confidence intervals (CI) for the daily emergency hospital visits for heart diseases (ICD-10 codes: I20-I25, I44-I50) in Reykjavik capital area associated with 10 μg/m3 increase in NO2, PM10, PM2.5, SO2 and H2S, adjusted for each pollutant, temperature and relative humidity, unstratified and stratified by gender and age, at lag 0 to lag 4

From: Ambient nitrogen dioxide is associated with emergency hospital visits for atrial fibrillation: a population-based case-crossover study in Reykjavik, Iceland

Categories

 

NO2

PM10

PM2,5

SO2

H2S

Lag

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

All

0

1.023

1.012–1.034

0.996

0.988–1.003

0.995

0.989–1.002

1.005

0.995–1.015

0.993

0.966–1.020

1

1.007

0.996–1.018

1.003

0.996–1.011

0.999

0.992–1.006

1.003

0.993–1.013

0.995

0.968–1.023

2

0.991

0.980–1.002

1.001

0.993–1.008

1.004

0.998–1.011

1.006

0.996–1.016

0.990

0.963–1.018

3

0.998

0.987–1.009

1.009

1.001–1.016

1.006

0.999–1.013

0.999

0.998–1.010

1.012

0.985–1.040

4

0.989

0.978–1.000

1.000

0.993–1.008

1.004

0.996–1.011

0.995

0.984–1.006

1.024

0.996–1.052

Females

0

1.030

1.012–1.048

1.003

0.992–1.015

0.992

0.981–1.003

1.004

0.988–1.019

0.977

0.934–1.022

1

1.024

1.006–1.042

1.001

0.989–1.013

0.998

0.987–1.008

1.005

0.990–1.020

0.980

0.938–1.024

2

0.986

0.969–1.004

0.996

0.984–1.008

0.999

0.989–1.010

1.008

0.992–1.024

0.986

0.944–1.031

3

1.007

0.989–1.025

1.014

1.003–1.026

0.999

0.989–1.010

1.007

0.991–1.024

1.010

0.967–1.055

4

0.989

0.971–1.007

0.998

0.986–1.010

1.001

0.990–1.012

0.999

0.983–1.017

1.026

0.981–1.073

Males

0

1.019

1.004–1.033

0.990

0.980–1.000

0.998

0.989–1.007

1.006

0.993–1.020

1.002

0.968–1.038

1

0.996

0.982–1.010

1.005

0.996–1.014

1.000

0.991–1.009

1.001

0.989–1.014

1.005

0.971–1.041

2

0.994

0.980–1.009

1.004

0.995–1.014

1.008

0.999–1.016

1.005

0.992–1.018

0.993

0.958–1.029

3

0.992

0.978–1.007

1.005

0.995–1.014

1.010

1.001–1.019

0.994

0.979–1.008

1.013

0.978–1.049

4

0.989

0.974–1.004

1.001

0.992–1.011

1.005

0.996–1.015

0.992

0.978–1.007

1.022

0.987–1.059

Older (≥71)

0

1.031

1.015–1.047

0.991

0.980–1.002

0.997

0.987–1.007

1.007

0.994–1.021

0.964

0.926–1.003

1

1.017

1.002–1.034

1.003

0.993–1.014

0.996

0.986–1.006

0.999

0.985–1.013

0.971

0.933–1.010

2

0.992

0.976–1.008

1.001

0.991–1.012

1.001

0.992–1.011

1.008

0.995–1.022

0.994

0.955–1.035

3

1.001

0.986–1.017

1.005

0.995–1.016

1.006

0.996–1.015

0.999

0.984–1.014

1.024

0.984–1.064

4

0.984

0.968–1.000

0.998

0.988–1.009

0.995

0.985–1.006

0.997

0.982–1.012

1.045

1.006–1.085

Younger (< 71)

0

1.015

0.999–1.031

1.001

0.990–1.011

0.994

0.985–1.004

1.003

0.988–1.018

1.019

0.982–1.058

1

0.996

0.981–1.012

1.003

0.993–1.014

1.002

0.993–1.011

1.007

0.993–1.022

1.019

0.981–1.058

2

0.991

0.975–1.007

1.000

0.989–1.011

1.007

0.998–1.017

1.004

0.989–1.019

0.986

0.949–1.025

3

0.995

0.979–1.011

1.012

1.001–1.022

1.006

0.994–1.016

0.999

0.984–1.015

1.001

0.963–1.040

4

0.994

0.978–1.010

1.001

0.991–1.012

1.011

1.001–1.020

0.993

0.977–1.010

1.002

0.962–1.042

Older females

0

1.031

1.007–1.055

0.998

0.983–1.013

0.984

0.969–0.998

1.009

0.991–1.028

0.936

0.881–0.994

1

1.024

1.001–1.047

1.002

0.986–1.018

0.994

0.980–1.008

1.005

0.987–1.023

0.954

0.900–1.010

2

0.986

0.964–1.009

0.999

0.985–1.015

0.999

0.985–1.012

1.013

0.994–1.033

0.965

0.910–1.024

3

1.010

0.987–1.034

1.008

0.993–1.023

1.000

0.987–1.014

1.017

0.997–1.038

1.002

0.947–1.060

4

0.987

0.963–1.010

0.996

0.981–1.012

0.989

0.975–1.004

1.003

0.983–1.024

1.022

0.965–1.082

Younger females

0

1.030

1.002–1.059

1.010

0.993–1.028

1.002

0.986–1.018

0.993

0.966–1.021

1.035

0.968–1.016

1

1.024

0.996–1.053

1.000

0.982–1.019

1.002

0.987–1.018

1.005

0.989–1.033

1.019

0.953–1.090

2

0.987

0.959–1.016

0.990

0.970–1.010

0.999

0.983–1.017

0.997

0.968–1.026

1.014

0.949–1.084

3

1.003

0.974–1.032

1.023

1.005–1.041

0.999

0.982–1.016

0.988

0.958–1.019

1.023

0.955–1.094

4

0.993

0.964–1.022

1.000

0.982–1.019

1.017

0.999–1.034

0.993

0.964–1.023

1.032

0.961–1.108

Older males

0

1.032

1.010–1.054

0.984

0.969–0.999

1.008

0.995–1.021

1.005

0.985–1.025

0.987

0.935–1.041

1

1.012

0.991–1.034

1.005

0.990–1.019

0.998

0.984–1.012

0.991

0.970–1.013

9.987

0.935–1.042

2

0.997

0.975–1.019

1.003

0.989–1.017

1.004

0.990–1.017

1.003

0.985–1.022

1.021

0.967–1.078

3

0.994

0.972–1.016

1.003

0.988–1.018

1.011

0.997–1.026

0.978

0.955–1.003

1.044

0.989–1.102

4

0.982

0.960–1.004

1.001

0.986–1.016

1.002

0.988–1.017

0.991

0.970–1.013

1.063

1.010–1.119

Younger males

0

1.009

0.990–1.028

0.995

0.982–1.008

0.990

0.978–1.002

1.007

0.989–1.026

1.013

0.969–1.060

1

0.983

0.965–1.002

1.005

0.993–1.017

1.002

0.990–1.014

1.008

0.991–1.025

1.019

0.973–1.067

2

0.993

0.973–1.012

1.005

0.992–1.018

1.010

0.999–1.022

1.006

0.989–1.024

0.973

0.928–1.020

3

0.991

0.972–1.011

1.006

0.993–1.019

1.009

0.998–1.021

1.004

0.986–1.023

0.990

0.945–1.038

4

0.995

0.975–1.015

1.002

0.989–1.015

1.008

0.996–1.020

0.994

0.974–1.013

0.988

0.941–1.037