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Table 1 Type of Unintentionally Retained Sponges (N = 319)

From: Retained surgical sponges: a descriptive study of 319 occurrences and contributing factors from 2012 to 2017

Type of sponge Sponges Radiopaque
N % N %a
Laparotomy 83 26.0 83 100.0
4 X 4/ 4 X 8/ raytec 54 16.9 44 81.5
Towel 11 3.4 0 0.0
Cottonoid 5 1.6 5 100.0
Kerlix 2 0.6 0 0.0
Peanut 1 0.3 1 100.0
Tonsil 1 0.3 1 100.0
4 × 10 1 0.3 1 100.0
2 × 4 1 0.3 0 0.0
Unknown 160 50.2 64 40.0
Total 319 100 199 62.4
  1. aPercent of radiopaque by number of sponges