Research Article

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

Table 2

Association between the amount and kind of different food items and the risk of prostate cancer.

Cases, (%)Controls, (%)Odds ratio95% CIRelative risk95% CI value

Number of meals/day
 2 to 3 meals 70 (78)158 (83)1
 >3 meals20 (22)32 (17)1.410.75–2.631.250.84–1.860.3238
Fish, time/month
 0–255 (61)118 (62)1
 ≥335 (39)72 (38)1.040.62–1.741.030.72–1.450.8957
Red meat, time/month
Lamb
  017 (19)95 (50)1
  1-240 (44)67 (35)3.331.74–6.372.461.49–4.060.0002
  ≥325 (28)28 (15)4.992.36–10.533.101.84–5.24<0.0001
  <0.0001
Beef
  016 (18)57 (30)1
  1-239 (43)81 (43)1.710.87–3.361.480.89–2.450.1394
  ≥335 (39)52 (27)2.391.19–4.831.831.11–3.030.0170
  0.013
Animal fat
 Never or small part137 (41)127 (67)1
 Medium part110 (11)43 (23)0.790.36–1.740.830.44–1.560.7020
 Great part143 (48)20 (10)7.383.87–14.063.022.17–4.20<0.0001
<0.0001
Dairy product
 Small or medium part245 (50)144 (76)1
 Great part345 (50)46 (24)3.131.84–5.312.071.49–2.88<0.0001
Total fruit, time/week
 <217 (19)4 (2)1
 2–659 (66)34 (18)0.400.12–1.310.780.60–1.010.198
 7–1414 (15)152 (80)0.020.00–0.070.100.06–0.17<0.0001
<0.0001
Total vegetables, time/week
 <718 (20)7 (4)1
 7–13 60 (67)61 (32) 0.380.14–0.980.680.50–0.930.048
 ≥1412 (13)122 (64)0.030.01–0.100.120.06–0.22<0.0001
<0.0001
Green tea consumption, cups/day
 <167 (75)122 (64) 1
 1–321 (23)59 (31) 0.640.36–1.150.740.48–1.120.1569
 >32 (2)9 (5)0.400.08–1.920.510.14–1.820.2025
0.07

95% CI = 95% confidence interval. Determined using the chi-square test. Determined using the chi-square test for trend; , , and .
1Relative to the total of daily food intake. 2One cup of milk or/with some other product (cheese, yogurt) per day. 3More than 2 cups of milk per day or/with a big quantity of other product (cheese, yogurt).