Radiology Research and Practice / 2012 / Article / Tab 2

Clinical Study

Mammographic Breast Density Patterns in Asymptomatic Mexican Women

Table 2

Distribution of characteristics according to age.

CharacteristicAge Probability
≤50 (117)>50 (183)

Normal weight18 (15.4)25 (13.7)
Overweight-obesity99 (84.6)158 (86.3) 0.17 0.678
Menopause
 No60 (51.3)13 (7.1)
 Yes57 (48.7)170 (92.9) 75.65 0.000
Smoker
 No98 (83.8)151 (82.5)
 Yes19 (16.2)32 (17.5) 0.08 0.779
Alcohol consumption
 No93 (79.5)144 (78.7)
 Yes24 (20.5)39 (21.3) 0.03 0.868
History of oral contraceptives
 No73 (62.4)144 (66.7)
 Yes24 (37.6)39 (33.3) 0.57 0.449
Pregnancies
 No10 (8.5)12 (6.6)
 Yes107 (91.5)171 (93.4) 0.42 0.519
Cesarean section
 No65 (55.6)123 (67.2)
 Yes52 (44.4)60 (32.7) 4.15 0.042
Abortion
 No90 (76.9)122 (66.7)
 Yes27 (23.1)61 (33.3) 3.62 0.057
History of lactation
 No21 (17.9)27 (14.8)
 Yes96 (82.1)156 (85.2) 0.54 0.462
Previous mammography
 No44 (37.6)76 (41.5)
 Yes73 (62.4)107 (58.5) 0.46 0.499
Mammography required by:
 Physician83 (70.9)133 (72.7)
 Nurse (early detection program)24 (20.5)39 (21.3) 0.71 0.702
 Women10 (8.5)11 (6.0)
Breast cancer in the family
 No86 (73.5)150 (82.0)
 Yes31 (26.5)33 (18.0) 3.05 0.081
Mother with BC
 No112 (95.7)179 (97.8)
 Yes5 (4.3)4 (2.2) 1.07 0.301
Sister with BC
 No107 (91.5)175 (95.6)
 Yes10 (8.5)8 (4.4) 2.21 0.137