Do scan numbers predict point-of-care ultrasound use and accuracy in senior emergency medicine residents?

[...]in our cohort, high junior resident scan numbers correlated with high senior resident scan numbers, but we found no correlation between scan numbers and senior resident accuracy. [...]investigation of alternative and effective means of monitoring POCUS milestone achievement is warranted. Independent variable: number of ultrasound scans performed in given PGY Parameter estimate (Beta) for senior resident accuracy presented as a percent (%) Standard error presented as a percent (%) P-value PGY1 −0.58 0.35 0.11 PGY2 −0.16 0.27 0.06 PGY3 −0.075 0.25 0.77 PGY1–2 −0.37 0.20 0.12 PGY1–3 −0.15 0.14 0.28 PGY1–4 −0.074 0.11 0.50 Table 2 Linear regression analyses of number of ultrasound scans performed during Emergency Medicine residency and subsequent senior resident accuracy.