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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 visits^a
Decile groups	PM₁₀	PM_2.5	SO₂	NO₂	CO	O₃	O₃^c
<10th-	244 ± 10	252 ± 11	258 ± 13	266 ± 10	259 ± 13	329 ± 15^b	265 ± 13
10th-	263 ± 9	242 ± 9	254 ± 10	254 ± 9	256 ± 9	307 ± 12^b	269 ± 11
20th-	252 ± 9	256 ± 9	261 ± 10	263 ± 10	257 ± 9	284 ± 9^b	247 ± 11
30th-	259 ± 9	256 ± 9	277 ± 9	271 ± 8	248 ± 11	266 ± 10	246 ± 11
40th-	271 ± 9	282 ± 9^b	250 ± 9	264 ± 10	259 ± 8	265 ± 9	241 ± 10
50th-	280 ± 8^b	270 ± 9^b	267 ± 10	267 ± 9	275 ± 9	266 ± 9	259 ± 11
60th-	273 ± 9^b	286 ± 9^b	271 ± 10	273 ± 9	277 ± 8	253 ± 10	267 ± 11
70th-	275 ± 9^b	271 ± 9^b	289 ± 9^b	284 ± 9^b	272 ± 8	242 ± 10	254 ± 10
80th-	294 ± 9^b	287 ± 9^b	294 ± 11^b	278 ± 10	280 ± 11^b	261 ± 11	274 ± 11^b
90th-	318 ± 10^b	326 ± 11^b	303 ± 13^b	306 ± 11^b	336 ± 13^b	264 ± 11	270 ± 12

^aNumbers w ere LSmeans±SE, adjusted for days of the w eek, months, air temperature and relative humidity
^bLSmeans in these groups w ere signif icantly higher than those in other groups (P < 0.05)
^cResults f rom the w arm period (16 April to 15 October, 183 days)

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