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Fig. 5 | SpringerPlus

Fig. 5

From: A randomized controlled study comparing a vessel sealing system with the conventional technique in axillary lymph node dissection for primary breast cancer

Fig. 5

Subgroup analysis of drain days. Subgroup analysis was performed by using the Cox hazard ratio analysis. Hazard ratio and 95 % confidence interval was obtained. Drain days were reduced in the patients with age under 60 years, body mass index less than 25, and patients whose surgery was performed by the surgeon with more than 7 years of experience. BVSS bipolar vessel sealing system, CONV conventional devices

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