From: Nutrition and lung cancer: a case control study in Iran
Diet | Â | Control (%) | Case (%) | ORa(95% CI) | P_value | |
---|---|---|---|---|---|---|
Meat | Sheep | Lower third | 190 (39.5) | 69 (28.9) | Referent | - |
Middle third | 212 (44.1) | 130 (54.4) | 21.7 (1.45-3.26) | <0.0001 | ||
Upper third | 79 (16.4) | 40 (16.7) | 1.54 (0.91-2.62) | 0.11 | ||
Beef | Lower third | 265 (55.0) | 105 (43.9) | Referent | - | |
Middle third | 183 (38.0) | 104 (43.5) | 1.41 (0.96-2.09) | 0.08 | ||
Upper third | 34 (7.0) | 30 (12.6) | 2.67 (1.39-5.10) | 0.003 | ||
 | Test for trend: P = 0.002 | |||||
Chicken | <four a month | 156 (32.4) | 74 (3.0) | Referent | - | |
2-4 a week | 278 (57.7) | 141 (59.0) | 1.19 (0.80-1.75) | 0.40 | ||
≥once a day | 48 (9.9) | 24 (10.0) | 1.36 (0.73-2.53) | 0.33 | ||
Sheep and beef liver | Lower third | 303 (63.0) | 94 (39.5) | Referent | - | |
Middle third | 102 (21.2) | 109 (45.8) | 4.44 (2.82-7.01) | <0.0001 | ||
Upper third | 76 (15.8) | 35 (14.7) | 1.52 (0.88-2.62) | 0.14 | ||
Fish | Never | 86 (17.9) | 23 (9.6) | Referent | - | |
<four a month | 238 (49.5) | 141 (59.0) | 2.16 (1.24-3.77) | 0.006 | ||
≥four a month | 157 (32.6) | 75 (31.4) | 1.71 (0.93-3.15) | 0.08 | ||
Shrimps | Never | 328 (68.2) | 189 (79.4) | Referent | - | |
<four a month | 98 (20.4) | 25 (10.5) | 0.42 (0.24-0.72) | 0.002 | ||
≥four a month | 55 (11.4) | 24 (10.1) | 0.78 (0.40-1.53) | 0.47 | ||
Dairy products | Eggs | Lower third | 117 (49.2) | 230 (47.8) | Referent | - |
Middle third | 70 (33.2) | 181 (37.6) | 0.69 (0.46-1.03) | 0.07 | ||
Upper third | 42 (17.6) | 70 (14.6) | 1.21 (0.72-2.04) | 0.48 | ||
 |  | Test for trend: P = 0.07 | ||||
Milk | Lower third | 157 (66.0) | 346 (71.8) | Referent | - | |
Middle third | 61 (25.6) | 94 (19.5) | 1.97 (1.20-3.21) | 0.007 | ||
Upper third | 20 (8.4) | 42 (8.7) | 2.64 (1.54-4.51) | <0.0001 | ||
 |  | Test for trend : P < 0.0001 | ||||
Butter | Lower third | 172 (35.7) | 49 (20.6) | Referent | - | |
Middle third | 194 (40.2) | 99 (41.6) | 1.70 (1.07-2.71) | 0.025 | ||
Upper third | 116 24.1) | 90 (37.8) | 2.94 (1.79-4.82) | <0.0001 | ||
 |  | Test for trend: P < 0.0001 | ||||
White cheese | Lower third | 49 (20.6) | 261 (41.1) | Referent | - | |
Middle third | 143 (60.1) | 185 (38.4) | 3.87 (2.52-2.93) | <0.0001 | ||
Upper third | 46 (19.3) | 36 (7.5) | 6.52 (3.49-12.18) | <0.0001 | ||
 |  | Test for trend: P < 0.0001 | ||||
Yogurt | Lower third | 151 (63.4) | 337 (69.8) | Referent | - | |
Middle third | 67 (28.2) | 108 (22.3) | 2.37 (1.46-3.83) | <0.0001 | ||
Upper third | 20 (8.4) | 38 (7.9) | 2.98 (1.77-5.00) | <0.0001 | ||
 |  |  | Test for trend: P < 0.0001 |