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. 2009 Nov 21;15(43):5465–5471. doi: 10.3748/wjg.15.5465

Table 1.

Demographic characteristics of digestive tract cancer patients and controls n (%)

Cancer
Control
Oral SCC Esophageal SCC Gastric adenocarcinoma Colon adenocarcinoma 1st hospital-based control 2nd hospital-based control Community-based control
n 199 317 196 240 305 403 395
Age mean ± SD 50.6 ± 9.9 58.3 ± 11.6 63.2 ± 13.5 64.5 ± 12.7 57.1 ± 11.4 60.0 ± 10.2 40.2 ± 6.2
(min, med, max) (26, 50, 78) (34, 58, 86) (22, 65, 91) (24, 66, 89) (34, 57, 82) (39, 60, 84) (30, 40, 58)
Sex
Male 188 (90.5) 301 (95.0) 123 (62.8) 139 (57.9) 289 (94.8) 374 (92.8) 204 (51.6)
Female 11 (5.5) 16 (5.0) 73 (37.2) 101 (42.1) 16 (5.2) 29 (7.2) 191 (48.4)
Educational level
≤ primary school 117 (58.8) 176 (55.5) 118 (60.2) 133 (55.4) 78 (25.6) 162 (40.2) 41 (10.4)
Junior high & high school 76 (38.2) 120 (37.9) 53 (27.0) 72 (30.0) 93 (30.5) 76 (18.9) 241 (61.0)
> high school 6 (3.0) 21 (6.6) 25 (12.8) 35 (14.6) 134 (43.9) 165 (40.9) 113 (28.6)
Cigarette smoking
No 32 (16.1) 39 (12.3) 101 (51.5) 143 (59.6) 168 (55.1) 248 (61.5) 283 (71.6)
Yes 167 (83.9) 278 (87.7) 95 (48.5) 97 (40.4) 137 (44.9) 155 (38.5) 112 (28.4)
Alcohol consumption
No 64 (32.2) 60 (18.9) 145 (74.0) 193 (80.4) 215 (70.5) 288 (71.5) 298 (75.4)
Yes 135 (67.8) 257 (81.1) 51 (26.0) 47 (19.6) 90 (29.5) 115 (28.5) 97 (24.6)
Betel quid chewing
No 29 (14.6) 149 (47.0) 171 (87.2) 213 (88.8) 280 (91.8) 381 (94.5) -
Yes 170 (85.4) 168 (53.0) 25 (12.8) 27 (11.2) 25 (8.2) 22 (5.5) -

SCC: Squamous cell carcinoma.