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Table 5 Haller Index (HI) pre operatively and post operatively

From: Outcome of surgical repair of Pectus Excavatum in adults

Grades of HI Pre-operative Post-operative χ2 test P-value
Mild < 3.2 0 (0%) 83 (96.5%) 48.7 0.00025*
Moderate (3.2–3.5) 8 (9.3%) 3 (3.4%) 1.6 0.06
Severe (3.6–6) 38 (44.2%) 0 (0%) 8.3 0.0003*
Extremely severe > 6 40 (46.5%) 0 (0%) 8.6 0.00025*
  1. *High Significant P-value