Table 3 Population distribution based on the number of exposure to risk factors by age groups
From: The assessment of risk factors and risk perception status of breast cancer in Northern Iran
Age groups | Examined Subjects N (%) | No exposure to the risk factor (%) | One risk factor N (%) | Two risk factors N (%) | Three risk factors N (%) | Four risk factors and more N (%) |
|---|---|---|---|---|---|---|
20–30 years | 95 (23.8) | 80 (84.2) | 10 (10.5) | 4 (4.2) | 1 (1.05) | 0 (0) |
30–40 years | 154 (38.5) | 130 (84.4) | 15 (9.7) | 6 (3.9) | 3 (1.9) | 0 (0) |
40–50 years | 98 (24.5) | 54 (55.1) | 25 (25.5) | 15 (15.3) | 4 (4.08) | 0 (0) |
50–60 years | 30 (7.5) | 0 (0) | 0 (0) | 17 (56.7) | 10 (33.3) | 3 (10) |
60–70 years | 23 (5.7) | 0 (0) | 0(0) | 7 (30.4) | 13 (56.5) | 3 (13.04) |
Sum | 400 (100) | 264 (66) | 50 (12.5) | 49 (12.3) | 31 (7.5) | 6 (1.5) |