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Table 4 Students' knowledge of risk factors for breast cancer

From: Awareness of breast cancer risk factors and practice of breast self examination among high school students in Turkey

Risk Factors for Breast Cancer True False Don't know
  N % N % N %
Obesity (postmenopausal) 168 23.4 124 17.3 426 59.3
Family history of breast cancer 481 67.0 65 9.0 172 24.0
High fat diet 274 38.2 77 10.7 367 51.1
Early menarche (< 12 years) 59 8.2 172 24.0 487 67.8
Late menopause (> 55 years) 82 11.4 96 13.4 540 75.2
Tobacco smoke 456 63.5 57 8.0 205 28.5
Alcohol 416 57.9 55 7.7 247 34.4
Aging 164 22.8 179 24.9 375 52.3
Environmental pollution 280 39.0 104 14.5 334 46.5
Personal history of breast cancer 493 68.7 24 3.3 201 28.0
Late age at first full-term pregnancy (> 30 years) 149 20.8 140 19.5 429 59.7
Never breastfed a child 193 26.9 135 18.8 390 54.3
Recent oral contraceptive use 51 7.1 120 16.7 547 76.2
Recent and long-term use of hormone replacement therapy 148 20.6 42 5.8 528 73.6
High-dose radiation to chest 338 47.1 34 4.7 346 48.2
Deficiency of physical activity 311 43.3 85 11.9 322 44.8