Table 2 Relative risk (RR) and 95% confidence intervals (CI) for the association between CVD, stroke and CHD mortality and annual area-weighted average L_dn aircraft noise, between 2011 and 2016 around the Congonhas Airport in São Paulo, Brazil

  ≤ 50 dB

1

0.939

1

0.096

1

0.304

  > 50–55 dB

0.96

0.90

1.03

0.99

0.9

1.1

0.95

0.87

1.03

  > 55–60 dB

1.06

0.96

1.17

0.94

0.81

1.08

1.05

0.94

1.18

  > 60–65 dB

0.97

0.87

1.10

0.84

0.7

0.99

0.99

0.87

1.14

  > 65 dB

1.00

0.87

1.14

0.86

0.71

1.03

1.06

0.91

1.23

  ≤ 50 dB

1

0.043

1

0.253

1

0.005

  > 50–55 dB

0.98

0.92

1.05

1.05

0.95

1.16

0.98

0.91

1.07

  > 55–60 dB

1.01

0.93

1.11

0.91

0.79

1.04

1.03

0.92

1.15

  > 60–65 dB

1.06

0.95

1.18

0.93

0.79

1.1

1.08

0.94

1.23

  > 65 dB

1.06

0.94

1.2

0.92

0.77

1.1

1.11

0.96

1.27

  ≤ 50 dB

1

0.087

1

0.21

1

0.02

  > 50–55 dB

1.00

0.94

1.07

1.07

0.97

1.18

1.00

0.92

1.09

  > 55–60 dB

1.05

0.96

1.15

0.94

0.82

1.07

1.07

0.96

1.19

  > 60–65 dB

1.09

0.97

1.22

0.96

0.81

1.13

1.1

0.97

1.26

  > 65 dB

1.08

0.96

1.22

0.93

0.78

1.11

1.13

0.98

1.31

  ≤ 50 dB

1

0.029

1

0.263

1

0.002

  > 50–55 dB

0.98

0.91

1.04

1.04

0.95

1.15

0.97

0.9

1.06

  > 55–60 dB

1.01

0.92

1.1

0.9

0.79

1.03

1.02

0.91

1.14

  > 60–65 dB

1.05

0.94

1.17

0.92

0.78

1.09

1.06

0.93

1.21

  > 65 dB

1.05

0.93

1.19

0.91

0.76

1.09

1.10

0.95

1.27