Reporting mammography use within the past 2 years was inversely associated with ages under 50 years ( OR = 0.49 , 95 % CI : 0.27-0 .88 ) and over 70 years ( OR = 0.47 , 95 % CI : 0.24-0 .94 ) , lack of health insurance ( OR = 0.23 , 95 % CI : 0.10-0 .50 ) , and high cost of exams ( OR = 0.55 , 95 % CI : 0.35-0 .87 ) .
