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Table 2 Summarized epidemiologic model results with the magnitude of error representative of error associated with using a population-weighted average for each pollutant added to the base case (RR* = 1.0139, 95% CI = 1.0078-1.0201, p-value = 0.000009, IQR = 1.00 ppm)

From: Impact of exposure measurement error in air pollution epidemiology: effect of error type in time-series studies

pollutant

RR per ppm (95% CI)

IQR (ppm)

RR per IQR (95% CI)

p-value

Error Type C simulations

1-hr max NO2

1.0011 (0.9998-1.0023)

1.84

1.0020 (0.9997-1.0042)

0.0957

1-hr max NOx

1.0024 (1.0003-1.0046)

1.51

1.0037 (1.0005-1.0070)

0.0251

8-hr max O3

1.0114 (1.0060-1.0169)

1.05

1.0120 (1.0063-1.0178)

0.00004

1-hr max SO2

1.0011 (0.9998-1.0023)

1.84

1.0019 (0.9997-1.0042)

0.0966

1-hr max CO

1.0021 (1.0002-1.0040)

1.57

1.0033 (1.0003-1.0063)

0.0342

24-hr PM10

1.0063 (1.0025-1.0102)

1.20

1.0076 (1.0030-1.0122)

0.0013

24-hr PM2.5

1.0094 (1.0045-1.0142)

1.10

1.0103 (1.0049-1.0156)

0.000157

24-hr PM2.5-SO4

1.0107 (1.0054-1.0159)

1.07

1.0114 (1.0058-1.0170)

0.000066

24-hr PM2.5-NO3

1.0079 (1.0035-1.0123)

1.14

1.0090 (1.0040-1.0141)

0.00040

24-hr PM2.5-NH4

1.0076 (1.0033-1.0119)

1.15

1.0088 (1.0038-1.0137)

0.00050

24-hr PM2.5-EC

1.0032 (1.0006-1.0057)

1.42

1.0045 (1.0009-1.0081)

0.0140

24-hr PM2.5-OC

1.0068 (1.0028-1.0108)

1.18

1.0080 (1.0033-1.0128)

0.00090

Error Type B simulations

1-hr max NO2

1.0182 (1.0041-1.0325)

0.51

1.0092 (1.0021-1.0165)

0.0112

1-hr max NOx

1.0169 (1.0056-1.0284)

0.61

1.0103 (1.0034-1.0172)

0.0034

8-hr max O3

1.0142 (1.0075-1.0208)

0.94

1.0133 (1.0070-1.0195)

0.000027

1-hr max SO2

1.0182 (1.0041-1.0325)

0.51

1.0092 (1.0021-1.0164)

0.0114

1-hr max CO

1.0172 (1.0053-1.0292)

0.59

1.0101 (1.0031-1.0171)

0.0044

24-hr PM10

1.0152 (1.0068-1.0236)

0.78

1.0117 (1.0053-1.0182)

0.00030

24-hr PM2.5

1.0144 (1.0073-1.0217)

0.88

1.0127 (1.0064-1.0190)

0.000074

24-hr PM2.5-SO4

1.0143 (1.0074-1.0211)

0.92

1.0130 (1.0068-1.0193)

0.000039

24-hr PM2.5-NO3

1.0147 (1.0071-1.0225)

0.83

1.0122 (1.0059-1.0186)

0.000152

24-hr PM2.5-NH4

1.0148 (1.0070-1.0226)

0.82

1.0121 (1.0058-1.0185)

0.000175

24-hr PM2.5-EC

1.0165 (1.0060-1.0271)

0.65

1.0106 (1.0038-1.0174)

0.0021

24-hr PM2.5-OC

1.0150 (1.0069-1.0232)

0.79

1.0119 (1.0055-1.0183)

0.00030