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Table 1 Daily outpatient visits for cardiovascular disease in different decile groups for air pollutants in lag 0

From: Air pollutants and outpatient visits for cardiovascular disease in a severe haze-fog city: Shijiazhuang, China

Decile groups Daily outpatient visitsa
PM10 PM2.5 SO2 NO2 CO O3 O3c
<10th- 244 ± 10 252 ± 11 258 ± 13 266 ± 10 259 ± 13 329 ± 15b 265 ± 13
10th- 263 ± 9 242 ± 9 254 ± 10 254 ± 9 256 ± 9 307 ± 12b 269 ± 11
20th- 252 ± 9 256 ± 9 261 ± 10 263 ± 10 257 ± 9 284 ± 9b 247 ± 11
30th- 259 ± 9 256 ± 9 277 ± 9 271 ± 8 248 ± 11 266 ± 10 246 ± 11
40th- 271 ± 9 282 ± 9b 250 ± 9 264 ± 10 259 ± 8 265 ± 9 241 ± 10
50th- 280 ± 8b 270 ± 9b 267 ± 10 267 ± 9 275 ± 9 266 ± 9 259 ± 11
60th- 273 ± 9b 286 ± 9b 271 ± 10 273 ± 9 277 ± 8 253 ± 10 267 ± 11
70th- 275 ± 9b 271 ± 9b 289 ± 9b 284 ± 9b 272 ± 8 242 ± 10 254 ± 10
80th- 294 ± 9b 287 ± 9b 294 ± 11b 278 ± 10 280 ± 11b 261 ± 11 274 ± 11b
90th- 318 ± 10b 326 ± 11b 303 ± 13b 306 ± 11b 336 ± 13b 264 ± 11 270 ± 12
  1. aNumbers w ere LSmeans±SE, adjusted for days of the w eek, months, air temperature and relative humidity
  2. bLSmeans in these groups w ere signif icantly higher than those in other groups (P < 0.05)
  3. cResults f rom the w arm period (16 April to 15 October, 183 days)