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Table 4 Associations of PM2.5 with YLL and ER of COPD deaths stratified by age, gender and marital status

From: The short term burden of ambient fine particulate matter on chronic obstructive pulmonary disease in Ningbo, China

Indicator Age Gender Marital status
<75 years ≥75 years Male Female Married Widowed
Years of life lost (95% CI) −0.06 (−0.54,0.42) 0.98 (0.42,1.54)* 0.47 (−0.08,1.01) 0.45 (−0.04,0.94) 0.27 (−0.30,0.84) 0.63 (0.21,1.05)
Percentage increase in death (95% CI) −0.05 (−2.39,2.30) 1.49 (0.65,2.33)* 1.12 (0.06,2.18) 1.57 (0.39,2.74) 0.84 (−0.31,2.00) 1.76 (0.66,2.86)
  1. Associations were presented at lag04 (moving average concentrations from day 0 to day4) with 10 μg/m3 increase in PM2.5. Data were collected from Ningbo, China, 2011–2015. *P < 0.05