Skip to main content

Table 5 Attributable numbers and fractions of hospital admissions, total hospital stays and total expenses (thousand CNY) that can be reduced when the annual NO2 concentration reaches the WHO 2021 AQG

From: Urban–rural disparities in the association of nitrogen dioxide exposure with cardiovascular disease risk in China: effect size and economic burden

 

Attributable number (95% CI)

Attributable fraction in % (95% CI)

Urban

Rural

Urban

Rural

Cardiovascular disease

    

 Hospital admissions (case)

5447 (2990, 7859)

4765 (2099, 7376)

3.39 (1.86, 4.89)

3.34 (1.47, 5.17)

 Total hospital stays (days)

81,801 (44,831, 118,191)

42,131 (18,562, 65,212)

2.70 (1.48, 3.90)

3.32 (1.46, 5.13)

 Total expenses (thousand CNY)

60,121 (33,002, 86,729)

32,875 (14,483, 50,886)

3.43 (1.88, 4.95)

3.29 (1.45, 5.09)

Coronary heart disease

    

 Hospital admissions (case)

1171 (−133, 2434)

1893 (769, 2977)

2.32 (−0.26, 4.82)

5.46 (2.22, 8.58)

 Total hospital stays (days)

12,728 (−1444, 26,501)

15,019 (6098, 23,616)

2.06 (−0.23, 4.28)

5.43 (2.21, 8.54)

 Total expenses (thousand CNY)

13,950 (−1584, 29,011)

14,366 (5833, 22,592)

2.30 (−0.26, 4.78)

5.43 (2.20, 8.53)

Ischemic stroke

    

 Hospital admissions (case)

1449 (433, 2426)

1198 (−108, 2455)

4.70 (1.41, 7.88)

3.21 (−0.29, 6.59)

 Total hospital stays (days)

19,803 (5915, 33,202)

11,809 (−1064, 24,207)

4.18 (1.25, 7.01)

3.18 (−0.29, 6.52)

 Total expenses (thousand CNY)

14,575 (4357, 24,413)

7302 (− 658, 14,969)

4.54 (1.36, 7.61)

3.14 (−0.28, 6.43)

Hypertension

    

 Hospital admissions (case)

1272 (265, 2232)

1066 (274, 1819)

4.70 (0.98, 8.25)

5.89 (1.51, 10.05)

 Total hospital stays (days)

22,999 (4760, 40,576)

8104 (2083, 13,831)

3.66 (0.76, 6.45)

5.85 (1.5, 9.98)

 Total expenses (thousand CNY)

8435 (1756, 14,795)

3372 (867, 5756)

4.75 (0.99, 8.33)

5.78 (1.49, 9.86)

  1. Abbreviations: CNY Chinese yuan, NO2 nitrogen dioxide, WHO 2021 AQG the 2021 World Health Organization Global Air Quality Guidelines, CI confidence interval