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Table 5 Contingency table for grade of calcification and recanalization technique. Results show absolute and relative frequencies

From: Alternative crossing technique for iliaco-femoro-popliteal CTOs with a catheter only

Grade of calcification Recanalization technique (%) Total
KMP only KMP + soft end GW KMP + back end GW Other
None 8 (72.7) 3 (27.3) 0 (0.0) 0 (0.0) 11 (100.0)
Mild 10 (52.6) 5 (26.4) 2 (10.5) 2 (10.5) 19 (100.0)
Severe 4 (25.0) 3 (18.8) 4 (25.0) 5 (31.2) 16 (100.0)
Total 22 (47.8) 11 (23.9) 6 (13.0) 7 (15.2) 46 (100.0)