. Author manuscript; available in PMC: 2014 Aug 5.

Published in final edited form as: Ann Surg Oncol. 2012 Oct 3;20(3):842–849. doi: 10.1245/s10434-012-2631-9

TABLE 4.

Risk prediction model for lymphedema exacerbation

Exposure	Univariate Analysis		Multivariable Analysis^a,^b

	Odds Ratio (95% CI)	P	Odds Ratio (95% CI)	P
Sauna use	5.77 (1.00–33.82)	0.05	6.67 (1.36–32.56)	0.01
Cut on affected arm	1.99 (0.91–4.35)	0.08	1.98 (0.89–4.38)	0.09
Race
White	1 — Referent	—	1 — Referent	—
Black	1.00 (0.40–2.50)	0.99	0.92 (0.36–2.32)	0.89
Other	5.74 (1.71–19.31)	0.005	5.47 (1.59–18.89)	0.007

Adjusted for number of lymph nodes removed and receipt of radiation treatment. Fit statistics for multivariable model: AIC=225.71, BIC=267.12.

In separate multivariable analysis we noted an interaction with sauna use and having a cut on the affected arm [OR=18.74; 95%: 1.41–249.48), p=0.027]; other predictors in the model were statistically significant; AIC=227.56, BIC=273.57.