Diet, Lifestyles, Family History, and Prostate Cancer Incidence in an East Algerian Patient Group

Table 3

Association between family history of prostate cancer, alcohol consumption, and smoking habits and the risk of prostate cancer.

	Cases, (%)	Controls, (%)	Odds ratio	95% CI	Relative risk	95% CI	value
Family history of prostate cancer
Absent	70 (78)	182 (96)	1
In first degree	11 (12)	3 (1)	9.53	2.58–35.20	2.82	2.01–3.96	0.0002
In second degree	9 (10)	5 (3)	4.68	1.51–14.45	2.31	1.49–3.58	0.0063
			<0.0001
Alcohol status
Nonusers	64 (71)	177 (93)	1
Former users	26 (29)	13 (7)	5.53	2.68–11.42	2.51	1.84–3.40	<0.0001
Smoking status
Nonsmokers	22 (24)	99 (52)	1
Former smokers	50 (56)	71 (37)	3.17	1.76–5.69	2.27	1.47–3.50	0.0001
Current smokers	18 (20)	20 (11)	4.05	1.84–8.89	2.60	1.57–4.31	0.0006
			<0.0001
Total tobacco consumption, unity of pack-years
0	22 (24)	99 (52)	1
1–9	9 (10)	20 (11)	2.02	0.81–5.04	1.70	0.88–3.30	0.1326
10–19	15 (17)	27 (14)	2.50	1.14–5.46	1.96	1.12–3.42	0.0311
20–29	11 (12)	23 (12)	2.15	0.91–5.05	1.78	0.96–3.29	0.0964
30–39	9 (10)	8 (4)	5.06	1.75–14.59	2.91	1.62–5.23	0.0033
≥40	24 (27)	13 (7)	8.30	3.66–18.83	3.56	2.28–5.57	<0.0001
			<0.0001

95% CI = 95% confidence interval. Determined using the chi-square test. Determined using the chi-square test for trend; , , , and .