TABLE 1.

Demographic characteristics of the study population by cigarette and/or opium use status

	Never cigarette nor opium		Ever cigarette only		Ever opium only		Ever both cigarette and opium
	n = 373		n = 120		n = 16		n = 49
	Frequency	Percent	Frequency	Percent	Frequency	Percent	Frequency	Percent
Age group
<50	36	9.65%	5	4.17%	1	6.25%	4	8.16%
50–59	88	23.59%	24	20.00%	6	37.50%	21	42.86%
60–69	123	32.98%	43	35.83%	1	6.25%	14	28.57%
70–79	82	21.98%	38	31.67%	7	43.75%	9	18.37%
≥80	44	11.80%	10	8.33%	1	6.25%	1	2.04%
Sex
Male	132	35.39%	103	85.83%	14	87.50%	47	95.92%
Female	241	64.61%	17	14.17%	2	12.50%	2	4.08%
Body mass index (kg/m2)
Underweight (<18)	26	6.97%	9	7.50%	2	12.50%	13	26.53%
Normal (18–24.9)	176	47.18%	78	65.00%	8	50.00%	27	55.10%
Overweight (25–29.9)	121	32.44%	31	25.83%	2	12.50%	7	14.29%
Obese (≥30)	50	13.40%	2	1.67%	4	25.00%	2	4.08%
Education
No formal education	169	45.31%	37	30.83%	6	37.50%	14	28.57%
≤5 y	69	18.50%	28	23.33%	5	31.25%	13	26.53%
6–8 y	44	11.80%	14	11.67%	2	12.50%	2	4.08%
9–12 y	47	12.60%	20	16.67%	3	18.75%	14	28.57%
Higher education	44	11.80%	21	17.50%	0	0.00%	6	12.24%
Residence
Rural	124	33.24%	46	38.33%	3	18.75%	16	32.65%
Urban	249	66.76%	74	61.67%	13	81.25%	33	67.35%
Any alcohol consumption
Yes	364	97.59%	106	88.33%	13	81.25%	33	67.35%
No	9	2.41%	14	11.67%	3	18.75%	16	32.65%
Pancreatic cancer
Yes	167	44.77%	60	50.00%	11	68.75%	35	71.43%
No	206	55.23%	60	50.00%	5	31.25%	14	28.57%