Event | PYa | IRb | cHRc | 95%CI | aHRd | 95% CIe | |
---|---|---|---|---|---|---|---|
Year 2000–2004 | |||||||
SO2 | |||||||
Quartile 1, < 3.38 ppb | 7 | 155,855 | 0.45 | Reference group | Reference group | ||
Quartile 2, 3.38–4.32 ppb | 12 | 211,515 | 0.47 | 1.26 | (0.50, 3.21) | 1.37 | (0.54, 3.51) |
Quartile 3, 4.32–6.03 ppb | 24 | 338,017 | 0.71 | 1.58 | (0.68, 3.67) | 1.81 | (0.77, 4.25) |
Quartile 4, > 6.03 ppb | 38 | 304,390 | 1.25 | 2.78 | (1.24, 6.22)* | 3.11 | (1.37, 7.04)** |
THC | |||||||
Quartile 1, < 2.29 ppm | 3 | 267,526 | 0.11 | Reference group | Reference group | ||
Quartile 2, 2.29–2.38 ppm | 3 | 200,539 | 0.15 | 1.33 | (0.27, 6.60) | 1.37 | (0.28, 6.76) |
Quartile 3, 2.38–2.60 ppm | 51 | 336,769 | 1.51 | 13.5 | (4.21, 43.2)*** | 16.3 | (5.05, 52.5)*** |
Quartile 4, > 2.60 ppm | 24 | 204,943 | 1.17 | 10.4 | (3.14, 34.6)*** | 14.6 | (4.32, 49.4)*** |
CH4 | |||||||
Quartile 1, < 2.01 ppm | 0 | 245,282 | 0.00 | ||||
Quartile 2, 2.01–2.06 ppm | 5 | 264,136 | 0.19 | Reference group | Reference group | ||
Quartile 3, 2.06–2.11 ppm | 19 | 261,444 | 0.73 | 3.84 | (1.43, 10.3)** | 4.07 | (1.52, 10.9)** |
Quartile 4, > 2.11 ppm | 57 | 238,914 | 2.39 | 12.6 | (5.04, 31.3)*** | 15.0 | (5.96, 37.7)*** |
Year 2005–2008 | |||||||
SO2 | |||||||
Quartile 1, < 3.38 ppb | 8 | 144,717 | 0.55 | Reference group | Reference group | ||
Quartile 2, 3.38–4.32 ppb | 8 | 201,468 | 0.40 | 0.72 | (0.27, 1.91) | 0.71 | (0.27, 1.90) |
Quartile 3, 4.32–6.03 ppb | 26 | 307,104 | 0.85 | 1.53 | (0.69, 3.39) | 1.50 | (0.67, 3.37) |
Quartile 4, > 6.03 ppb | 48 | 281,274 | 1.71 | 3.09 | (1.46, 6.53)** | 3.00 | (1.41, 6.40)** |
THC | |||||||
Quartile 1, < 2.29 ppm | 6 | 262,547 | 0.23 | Reference group | Reference group | ||
Quartile 2, 2.29–2.38 ppm | 12 | 196,383 | 0.61 | 2.67 | (1.00, 7.12)* | 2.70 | (1.01, 7.18)* |
Quartile 3, 2.38–2.60 ppm | 43 | 301,098 | 1.43 | 6.27 | (2.67, 14.7)*** | 6.12 | (2.59, 14.5)*** |
Quartile 4, > 2.60 ppm | 29 | 174,535 | 1.66 | 7.31 | (3.03, 17.6)*** | 7.02 | (2.86, 17.2)*** |
CH4 | |||||||
Quartile 1, < 2.01 ppm | 5 | 241,793 | 0.21 | Reference group | Reference group | ||
Quartile 2, 2.01–2.06 ppm | 8 | 254,354 | 0.31 | 1.52 | (0.50, 4.65) | 1.52 | (0.50, 4.65) |
Quartile 3, 2.06–2.11 ppm | 22 | 248,155 | 0.89 | 4.29 | (1.62, 11.3)** | 4.19 | (1.58, 11.1)** |
Quartile 4, > 2.11 ppm | 55 | 190,262 | 2.89 | 14.1 | (5.66, 35.3)*** | 13.4 | (5.35, 33.7)*** |
Year 2009–2012 | |||||||
SO2 | |||||||
Quartile 1, < 3.38 ppb | 18 | 131,135 | 1.37 | Reference group | Reference group | ||
Quartile 2, 3.38–4.32 ppb | 19 | 176,467 | 1.08 | 0.78 | (0.41, 1.49) | 0.79 | (0.41, 1.51) |
Quartile 3, 4.32–6.03 ppb | 33 | 269,725 | 1.22 | 0.89 | (0.50, 1.58) | 0.90 | (0.50, 1.62) |
Quartile 4, > 6.03 ppb | 23 | 240,350 | 0.96 | 0.69 | (0.37, 1.29) | 0.99 | (0.88, 1.12) |
THC | |||||||
Quartile 1, < 2.29 ppm | 22 | 250,851 | 0.88 | Reference group | Reference group | ||
Quartile 2, 2.29–2.38 ppm | 33 | 186,270 | 1.77 | 2.02 | (1.18, 3.47)* | 2.02 | (1.18, 3.47)* |
Quartile 3, 2.38–2.60 ppm | 27 | 251,963 | 1.07 | 1.22 | (0.69, 2.14) | 1.22 | (0.69, 2.15) |
Quartile 4, > 2.60 ppm | 11 | 128,593 | 0.86 | 0.97 | (0.47, 2.00) | 0.97 | (0.46, 2.02) |
CH4 | |||||||
Quartile 1, < 2.01 ppm | 18 | 221,684 | 0.81 | Reference group | Reference group | ||
Quartile 2, 2.01–2.06 ppm | 17 | 247,435 | 0.69 | 0.85 | (0.44, 1.65) | 0.85 | (0.44, 1.66) |
Quartile 3, 2.06–2.11 ppm | 36 | 216,749 | 1.66 | 2.04 | (1.16, 3.59)* | 2.07 | (1.17, 3.65)* |
Quartile 4, > 2.11 ppm | 22 | 131,809 | 1.67 | 2.05 | (1.10, 3.82)* | 2.05 | (1.10, 3.83)* |