Table 2 Multivariate analysis of axillary evaluation and patients’ characteristics among those who underwent mastectomy
From: DCIS and axillary nodal evaluation: compliance with national guidelines
Variable | Odds Ratio | Lower CL | Upper CL | p-Value | |
|---|---|---|---|---|---|
Age | Per year increase | 0.99 | 0.98 | 0.99 | <0.01 |
Facility Type (ref = Academic/Research Program) | Community Cancer Program | 0.63 | 0.54 | 0.75 | <0.01 |
Comprehensive Community Cancer Program | 0.84 | 0.76 | 0.93 | ||
Primary Site (ref = Overlapping lesion) | Nipple areolar | 0.57 | 0.38 | 0.88 | 0.01 |
Central | 0.82 | 0.68 | 0.99 | ||
Upper inner | 0.91 | 0.76 | 1.11 | ||
Lower inner | 1.03 | 0.83 | 1.26 | ||
Upper outer | 1.00 | 0.87 | 1.13 | ||
Lower outer | 0.88 | 0.72 | 1.06 | ||
Axillary tail | 2.11 | 0.47 | 9.36 | ||
NOS | 0.83 | 0.72 | 0.95 | ||
Tumor Size (ref= > 5 cm) | ≤1 cm | 0.44 | 0.37 | 0.52 | |
>1 cm, ≤2 cm | 0.68 | 0.58 | 0.81 | ||
>2 cm, ≤3 cm | 0.74 | 0.60 | 0.92 | ||
>3 cm, ≤4 cm | 0.72 | 0.57 | 0.90 | ||
>4 cm, ≤5 cm | 0.93 | 0.72 | 1.20 | ||
Year of Diagnosis (ref = 2011) | 1998 | 0.19 | 0.15 | 0.24 | <0.01 |
1999 | 0.19 | 0.15 | 0.25 | ||
2000 | 0.15 | 0.12 | 0.20 | ||
2001 | 0.21 | 0.17 | 0.27 | ||
2002 | 0.18 | 0.14 | 0.22 | ||
2003 | 0.21 | 0.17 | 0.26 | ||
2004 | 0.33 | 0.26 | 0.42 | ||
2005 | 0.35 | 0.28 | 0.44 | ||
2006 | 0.40 | 0.32 | 0.49 | ||
2007 | 0.53 | 0.43 | 0.66 | ||
2008 | 0.76 | 0.62 | 0.92 | ||
2009 | 0.72 | 0.60 | 0.88 | ||
2010 | 1.06 | 0.86 | 1.29 |