Skip to main content

Table 2 Proportional incidence of first-year interval breast cancers by type of previous negative mammography report.

From: Incidence, detection, and tumour stage of breast cancer in a cohort of Italian women with negative screening mammography report recommending early (short-interval) rescreen

 

Mammography report

 

Standard negative

Negative with RES

Woman-years at risk, n*

272,710

3286

OBS, n (rate)†

96 (35.3)

4 (121.7)

EXP, n

640.4

7.6

OBS:EXP ratio (95% CI)

0.15 (0.12-0.18)

0.53 (0.14-1.35)

Ratio‡ of the OBS:EXP ratios (95% CI)

1.00 (referent)

3.51 (0.94-9.29)

  1. * Adjusted for general mortality and rounded to the whole-number value.
  2. † Per 100,000 woman-years at risk.
  3. ‡ Adjusted for woman's age (5-year groups).
  4. RES, recommendation for early (<24 months) rescreen; OBS:EXP ratio, observed:expected ratio or proportional incidence of interval cancers; CI, confidence interval.
Back to article page

BMC Medicine

ISSN: 1741-7015

Contact us