Background
Methods
Meta-analysis
Heterogeneity and publication bias
Sensitivity analysis
Results
Air pollutant concentrations
Mortality
Short-term exposures
Ref# | City | Period | PM10
| NO2
| SO2
| O3
| ||||
---|---|---|---|---|---|---|---|---|---|---|
RR | SE | RR | SE | RR | SE | RR | SE | |||
[25] | Anshan | 2004–2006 | 1.0024 | 14 | 1.0130 | 70 | 1.0027 | 17 | ||
Beijing | 2007–2008 | 1.0017* | 5 | 1.0040 | 24 | |||||
[28] | 1989 | 1.0107* | 25 | |||||||
[29] | Chongqing | 1995 | 1.0030 | 26 | ||||||
[30] | Foshan | 2006–2008 | 1.0050* | 10 | 1.0187* | 24 | 1.0036 | 21 | ||
Fuzhou | 2004–2006 | 1.0063* | 23 | 1.0271* | 106 | |||||
[30] | Guangzhou | 2006–2008 | 1.0074* | 11 | 1.0166* | 20 | 1.0064* | 11 | ||
Hangzhou | 2002–2004 | 1.0032* | 14 | 1.0095* | 46 | |||||
Hong Kong | 1996–2002 | 1.0064* | 12 | 1.0122* | 13 | 1.0091* | 26 | 1.0034* | 16 | |
[32] | Kaohsiung | 1994–2000 | 1.0000 | 43 | 1.0003 | 87 | 1.0040 | 111 | 0.9984 | 56 |
Lanzhou | 2004–2008 | 1.0001 | 5 | 1.0054* | 22 | |||||
Nanjing | 2007–2010 | 1.0107* | 28 | |||||||
[33] | Shanghai | 2004–2005 | 1.0016* | 7 | ||||||
2001–2004 | 1.0127* | 13 | 1.0095* | 17 | 1.0031* | 14 | ||||
Shenyang | 2005–2008 | 1.0018* | 8 | 1.0150* | 30 | |||||
Suzhou | 2005–2008 | 1.0037* | 11 | 1.0173* | 27 | |||||
[35] | 2006–2008 | 1.0036* | 15 | |||||||
[36] | Taichung | 1993–2006 | 1.0039* | 10 | 1.0016 | 16 | ||||
[37] | Taipei | 1994–1998 | 0.9984 | 41 | 1.0015 | 63 | 0.9982 | 135 | 0.9995 | 75 |
Taiyuan | 2004–2008 | 1.0021* | 9 | 1.0422* | 70 | |||||
Tangshan | 2006–2008 | 1.0011 | 19 | 1.0141* | 58 | |||||
Tianjin | 2005–2008 | 1.0075* | 16 | 1.0246* | 58 | |||||
[38] | 2005–2007 | 1.0056* | 17 | |||||||
Urumqi | 2006–2007 | 1.0010 | 10 | 1.0085 | 60 | |||||
Wuhan | 2003–2005 | 1.0042* | 8 | 1.0290* | 25 | |||||
[39] | 2000–2004 | 1.0120* | 28 | 1.0029 | 17 | |||||
Xian | 2004–2008 | 1.0019* | 8 | 1.0225* | 36 | |||||
[30] | Zhongshan | 2006–2008 | 1.0044 | 24 | 1.0122* | 40 | 1.0061* | 20 | ||
[30] | Zhuhai | 2006–2008 | 1.0037 | 69 | 1.0139 | 77 | 1.0022 | 30 | ||
Pooled RR
a
|
1.0031
R
* |
5
|
1.0140
R
* |
11
|
1.0071
R
* |
13
|
1.0042
F
* |
6
|
PM10
| NO2
| SO2
| O3
| |||||
---|---|---|---|---|---|---|---|---|
Health outcome [Ref. #] | RR | SE | RR | SE | RR | SE | RR | SE |
Mortality
| ||||||||
1.0031
R
* | 5 |
1.0140
R
* | 17 |
1.0071
R
* | 9 |
1.0042
F
* | 6 | |
1.0049
R
* | 7 |
1.0162
R
* | 22 |
1.0072
R
* | 17 |
1.0051
R
* | 13 | |
1.0057
R
* | 9 |
1.0220
R
* | 33 |
1.0129
R
* | 36 |
1.0048
F
* | 14 | |
1.0034
F
* | 6 |
1.0155
R
* | 54 |
1.0123
F
* | 15 |
1.0023
F
| 15 | |
1.0062
R
* | 15 |
1.0177
F
* | 23 |
1.0182
R
* | 41 |
1.0026
R
| 31 | |
1.0057
R
* | 18 |
1.0147
R
* | 39 |
1.0079
F
* | 26 |
1.0057
R
* | 29 | |
0.9963 | 52 |
1.0130
R
| 118 | 1.0280* | 82 | |||
1.0065
R
| 41 |
1.0184
R
* | 58 |
1.0095
R
* | 43 |
1.0071
R
| 39 | |
1.0105
F
* | 33 |
1.0175
F
*
| 49 |
1.0235
F
*
| 70 | 1.0054
F
| 45 | |
1.0028
F
* | 6 |
1.0094
R
* | 19 |
1.0076
F
* | 16 |
1.0025
F
* | 10 | |
1.0031* | 15 |
1.0020
R
| 14 | |||||
Diabetes[46] | 1.0060 | 31 | 1.0130 | 66 | 1.0110 | 320 | ||
1.0015
F
| 22 |
1.0000
F
| 46 |
0.9988
F
| 56 |
1.0005
R
| 59 | |
Hospital admissions
| ||||||||
All causes[47] | 0.9972 | 17 | 1.0014 | 49 | 1.0003 | 34 | ||
1.0021
R
* | 10 |
1.0095
F
* | 21 |
1.0079
R
* | 43 | 1.0024 | 11 | |
1.0039
R
| 22 |
1.0060
R
* | 24 |
1.0014
F
| 15 | 1.0081* | 12 | |
Cardiac diseases[31] | 1.0058* | 11 | 1.0100* | 13 | 1.0098* | 21 | 1.0012 | 13 |
0.9981
R
| 40 |
1.0032
F
| 21 |
0.9986
F
| 31 |
0.9994
F
| 19 | |
1.0065
F
* | 20 |
1.0142
R
| 74 |
1.0102
F
* | 36 |
1.0024
F
| 21 | |
Asthma[31] |
1.0077
F
* | 24 |
1.0094
F
* | 31 |
0.9992
F
| 47 |
1.0162
F
* | 30 |
Chronic obstructive pulmonary diseases[31] | 1.0132* | 17 | 1.0194* | 20 | 1.0070* | 31 | 1.0154* | 19 |
Influenza and pneumonia[31] | 1.0066* | 20 | 1.0076* | 24 | 1.0009 | 38 | 1.0109* | 23 |
Pneumonia[48] | 1.0006 | 47 | 1.0071 | 84 | 1.0062 | 146 | 1.0081 | 81 |
Acute respiratory diseases[31] | 1.0088* | 20 | 1.0122* | 25 | 1.0055 | 38 | 1.0155* | 22 |
Emergency admissions
| ||||||||
Cardiovascular diseases[49] | 1.0060* | 26 | 1.0130* | 36 | 1.0160* | 51 | ||
Respiratory diseases[49] | 1.0130* | 41 | ||||||
1.0070 | 41 | 1.0100 | 51 | 1.0100 | 77 | |||
Cerebrovascular diseases[49] | 1.0030 | 36 | 1.0080 | 51 | 0.9920 | 46 | ||
Cardiac diseases[50] | 1.0050* | 20 | 1.0120* | 26 | 1.0160* | 31 | 1.0045* | 21 |
Heart failure[49] | 1.0360* | 117 | ||||||
Asthma[51] | 1.0060* | 20 | 1.0090* | 26 | 1.0040 | 36 | 1.0150* | 20 |
Chronic obstructive pulmonary diseases[51] | 1.0050* | 10 | 1.0090* | 20 | 1.0070 | 36 | 1.0110* | 15 |
Emergency room visit
| ||||||||
All causes[52] | 1.0002 | 5 | 1.0070* | 14 | 1.0023 | 10 | ||
1.0030 | 15 | 1.0140 | 71 | 1.0140* | 51 | |||
1.0011 | 23 | 1.0050 | 38 | 1.0010 | 20 | |||
Ischemia heart diseases[53] | 1.0010 | 46 | ||||||
Cerebrovascular diseases[50] | 1.0010 | 31 | ||||||
Heart failure[50] | 1.0120 | 97 | ||||||
Cardiac arrhythmias[50] | 1.0020 | 51 | ||||||
1.0188 | 69 | 1.0689 | 286 | 1.0370* | 173 | |||
Acute upper respiratory infections[55] | 1.0130* | 20 | 1.0320* | 77 | 1.0180* | 46 | ||
Acute pharyngitis[55] | 1.0120* | 46 | 1.0300 | 168 | 1.0170 | 102 | ||
Adverse birth outcomes
| ||||||||
Stillbirth[59] | 1.0200 | 153 | 1.0053 | 163 | 1.0076 | 39 | 1.0051 | 130 |
Preterm birth[60] | 1.0442* | 144 | 1.0543* | 186 | 1.1189* | 265 | 1.0463* | 218 |
Low birth weight – 3rd trimester[61] | 1.0110* | 26 | ||||||
Low birth weight – entire pregnancy[62] | 1.0087 | 46 |