. 2012 Apr 20;21(2):135–139. doi: 10.1007/s12282-012-0367-9

Table 6.

Screening results for women aged 40–49 years

Per 1000 screened (number)	BCSC	JABCS	Our study
Harm
False positive MMG	97.8	86.3	25.0
Additional imaging	84.3	73.4	29.3^a
Biopsy (exclude FNA)	9.3	6.9	9.3
Benefit
Screen-detected cancer	2.6	2.8	5.6

BCSC [12–14], JABCS: 5 prefectures [11]

^aAdditional imaging was defined as the number using US according to the JABCS