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Table 3 Pairwise comparison of different OP procedures for primary chest wall closure

From: Short-term and long-term outcomes of intrathoracic vacuum therapy of empyema in debilitated patients

OP Technique Chest wall closure Paired comparison of success
OWT-VAC n = 20 12/20 (60 %) OWT-VAC vs. Mini-VAC, p = 0.034
Mini-VAC n = 8 8/8 (100 %) Mini-VAC vs. Mini-VAC-Instill, p = 0.455
Mini-VAC-Instill n = 15 14/15 (87 %) Mini-VAC-Instill vs. OWT-VAC, p = 0.026