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Table 3 Relative risk of daily mortality associated with an increase of 100 nW/cm2/sr of daily LAN in 579 Chinese counties, 2015–2019, by economic development levels and LAN levels

From: Light at night and cause-specific mortality risk in Mainland China: a nationwide observational study

Death cause

RR (95%CI)

 

High development level

Median development level

Low development level

All-cause

1.06 (1.03, 1.10)

1.10 (1.04, 1.17)

1.07 (1.02, 1.12)

External

1.03 (0.93, 1.13)

1.04 (0.88, 1.23)

1.06 (0.93, 1.22)

Natural

1.07 (1.03, 1.10)

1.11 (1.04, 1.18)

1.07 (1.02, 1.12)

Neuron system disease

1.27 (1.05, 1.54)

1.61 (1.20, 2.15)

1.61 (1.20, 2.15)

Digestive system disease

1.36 (1.12, 1.65)

1.26 (0.99, 1.60)

1.10 (0.91, 1.33)

Urinary system disease

1.19 (0.93, 1.52)

1.20 (0.90, 1.61)

1.26 (0.95, 1.67)

Cancer

1.07 (1.01, 1.13)

1.19 (1.09, 1.30)

1.13 (0.81, 1.58)

Cardiovascular disease

1.07 (1.02, 1.12)

1.09 (1.004, 1.17)

1.05 (0.99, 1.12)

Respiratory system disease

1.02 (0.95, 1.09)

1.09 (0.98, 1.21)

1.13 (1.01, 1.27)

P for post hoc test

0.42

  
 

High LAN level

Median LAN level

Low LAN level

All-cause

1.05 (1.01, 1.09)

1.10 (1.05, 1.15)

1.10 (1.02, 1.18)

External

0.97 (0.88, 1.07)

1.09 (0.97, 1.23)

1.09 (0.88, 1.35)

Natural

1.05 (1.01, 1.09)

1.10 (1.06, 1.15)

1.10 (1.02, 1.19)

Neuron system disease

1.22 (0.99, 1.49)

1.37 (1.08, 1.74)

1.68 (1.08, 2.62)

Digestive system disease

1.12 (0.93, 1.34)

1.38 (1.16, 1.64)

1.28 (0.90, 1.81)

Urinary system disease

1.08 (0.86, 1.37)

1.34 (1.06, 1.69)

1.30 (0.82, 2.07)

Cancer

1.07 (1.01, 1.13)

1.11 (1.03, 1.19)

1.27 (1.13, 1.42)

Cardiovascular disease

1.04 (0.99, 1.10)

1.11 (1.05, 1.18)

1.06 (0.96, 1.16)

Respiratory system disease

1.03 (0.96, 1.11)

1.06 (0.98, 1.16)

1.19 (0.98, 1.43)

P for post hoc test

0.02

  
  1. The results adjusted by temperature, humidity, and PM2.5
  2. RR relative risk, CI incidence intervals, LAN light at night