Table 1.

Summary Statistics, 2006–2015

	All Mean (SD)*	Female Mean (SD)*	Male Mean (SD)*
N person-years†	450,484	262,242	188,242
N individuals	92,405	52,871	39,534
Below values in percent (%)
Colorectal cancer screening
Up-to-date with colorectal cancer screening	61.5 (48.7)	61.5 (48.7)	61.6 (48.6)
Colonoscopy within 10 y	53.1 (49.9)	53.2 (49.9)	52.9 (49.9)
Flexible sigmoidoscopy within 5 y	0.5 (7.0)	0.5 (7.1)	0.5 (6.8)
FOBT within 1 y	8.0 (27.1)	7.8 (26.7)	8.2 (27.5)
Ever had false-positive colorectal cancer screening
Positive FOBT (negative follow-up colonoscopy within 6 m, without biopsy/polypectomy)‡	2.1 (14.2)	1.8 (13.2)	2.4 (15.4)
Breast cancer screening
Up-to-date with breast cancer screening (past 2 y)	-	84.6 (36.1)	-
Ever had false-positive breast cancer screening
Repeat breast imaging within 91 d (no biopsy)	-	28.8 (45.3)	-
Breast biopsy	-	1.5 (12.3)	-
Prostate cancer screening
Received prostate cancer screening in past 2 y	-	-	74.7 (43.5)
Ever had false-positive prostate cancer screening
PSA ≥4.0 ng/mL (repeated within 91 d, no imaging/biopsy)	-	-	2.8 (16.5)
Prostate imaging/biopsy	-	-	0.5 (7.1)

^*All P<0.001 except up-to-date with colorectal cancer screening (P=0.49).

^†Each individual had an additional 2 years’ EMR data, used to inform cancer screening history.

^‡We did not consider false-positives for patients who underwent initial colonoscopy because repeat screening would not be expected during the study period.