Screening prior to Breast Cancer Diagnosis: The More Things Change, the More They Stay the Same

Table 2

Screening frequency by age groups over time.

Variables	Years and total 𝑁 (%)
40–49 years of age	All years; (𝑁=256)	2010; (𝑁=98)	2011; (𝑁=114)	2012; (𝑁=44)	𝑃 value
Annual screening	155 (60%)	55 (56%)	72 (63%)	28 (64%)	0.45
Biennial screening	30 (12%)	16 (16%)	11 (10%)	3 (7%)
Nonregular screening	71 (28%)	27 (28%)	31 (27%)	13 (29%)
50–74 years of age	All years; (𝑁=656)	2010; (𝑁=261)	2011; (𝑁=245)	2012; (𝑁=150)	𝑃 value
Annual screening	516 (79%)	212 (81%)	187 (76%)	117 (78%)	0.02
Biennial screening	42 (6%)	17 (7%)	22 (9%)	3 (2%)
Nonregular screening	98 (15%)	32 (12%)	36 (15%)	30 (20%)
75+ years of age	All Years; (𝑁=136)	2010; (𝑁=56)	2011; (𝑁=50)	2012; (𝑁=30)	𝑃 value
Annual screening	101 (74%)	43 (77%)	36 (72%)	22 (73%)	0.32
Biennial screening	11 (8%)	3 (5%)	3 (6%)	5 (17%)
Nonregular screening	24 (18%)	10 (18%)	11 (22%)	3 (10%)