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. Author manuscript; available in PMC: 2011 Aug 26.
Published in final edited form as: Ann Surg Oncol. 2009 Oct 22;17(2):558–563. doi: 10.1245/s10434-009-0765-1

Table 2.

Correlates of Larger Margin Width

Odds Ratio (95% Confidence Interval)1

Scenario A
Invasive
Scenario C
DCIS, No RT

% practice devoted to
breast cancer
≤ 15% Reference Reference
16–49% 1.05 (0.66–1.70) 1.61 (0.96–2.71)
> 50% 0.44 (0.23–0.87) 2.72 (1.24–5.95)
Wald test, p-value 7.27, p = 0.026 7.23, p = 0.027

Female surgeons 0.71 (0.39–1.32) 1.12 (0.54–2.32)

Years in practice 0.99 (0.97–1.02) 0.99 (0.97–1.01)
1

Adjusted for all other covariates in the model