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. Author manuscript; available in PMC: 2015 Jul 8.
Published in final edited form as: Otolaryngol Head Neck Surg. 2012 Jan 18;146(5):719–724. doi: 10.1177/0194599811434383

Table 1.

Incidence of VTE in Otolaryngology by Caprini Risk Score

Caprini RAM 0-1 2 3-4 5-6 7-8 9+ Total
VTE, No. (%) 0 1 (0.5) 1 (0.2) 7 (0.9) 7 (2.4) 11 (18.3) 27 (1.3)
No VTE, No. (%) 29 (100) 202 (99.5) 623 (99.8) 804 (99.1) 282 (97.6) 49 (81.7) 1989 (98.7)
% VTE (95% CI) NA 0-2.7 0-0.9 0.4-1.8 1.0-4.9 9.5-30.4 0.1-0.7

Abbreviations: CI, confidence interval; NA, not applicable; RAM, Risk Assessment Model; VTE, venous thromboembolism.