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Table 2 NOS of the included studies

From: Risk factors for venous thromboembolism of total hip arthroplasty and total knee arthroplasty: a systematic review of evidences in ten years

NOS Percentages of studies N(n%)* References of studies
8 14 (26%) [11,14,27,32,38,39,41,43,45,48,50,54,56,63]
7 22 (41%) [15,18,20-23,26,29,35-37,47,49,51,52,55,57-62,64]
6 18 (33%) [12,13,16,17,19,24,25,28,30,31,33,34,40,42,44,46,53]
  1. *N (n%), N = number of studies, n = percentage in the 54 included studies.