Table 1 Demographic characteristics of patients with colon or rectum carcinoma

Age, Mean±SD

56.93±13.43

57.08±14.61

57.03±13.85

0.88^*

Sex, N (%)

Female

Male

222 (42%)

309 (58%)

132 (47%)

148 (53%)

355 (44%)

460 (56%)

0.14^†

Body mass index (kg/m²), N (%)

Underweight

Normal weight

Overweight

Obesity

46 (9%)

269 (51%)

156 (29%)

57 (11%)

32 (11%)

123 (44%)

88 (31%)

34 (12%)

78 (10%)

395 (48%)

245 (30%)

91 (11%)

0.28^†

Educational level, N (%)

Illiterate

Primary school

High School

Post graduate

Academic degree

150 (28%)

4 (1%)

126 (24%)

191 (36%)

60 (11%)

64 (23%)

2 (1%)

82 (29%)

100 (36%)

32 (11%)

216 (27%)

6 (1%)

208 (26%)

292 (36%)

93 (11%)

0.37^†

Marital status, N (%)

Divorced

Married

Single

Widowed

2 (0%)

502 (95%)

24 (5%)

3 (1%)

0 (0%)

266 (95%)

11 (4%)

3 (1%)

2 (0%)

722 (95%)

35 (4%)

6 (1%)

0.85^†

Ethnicity, N (%)

Arab

Balooch

Fars

Kurd

Lor

Other

Turk

16 (3%)

0 (0%)

441 (83%)

3 (1%)

48 (9%)

4 (1%)

19 (4%)

6 (1%)

2 (1%)

234 (84%)

2 (1%)

24 (9%)

2 (1%)

10 (3%)

22 (0%)

2 (3%)

679 (83%)

5 (1%)

72 (9%)

6 (1%)

29 (4%)

0.74^†

OCP consumption, N (%)

No

Yes

136 (61%)

85 (38%)

86 (65%)

43 (%34)

222 (63%)

131 (37%)

0.33^†

Smoking, N (%)

Current smoker

Ex-Smoker

Non-smoker

71 (13%)

105 (20%)

355 (67%)

34 (12%)

51 (18%)

195 (70%)

105 (13%)

156 (19%)

554 (68%)

0.72^†

Type of smoking, N (%)

Cigarette

101 (61%)

58 (37%)

159 (100%)

0.89^†

Opium

40 (67%)

20 (33%)

60 (100%)

0.65^†

Hookah

74 (76.3%)

23 (23.7%)

97 (100%)

0.007^†