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. 2021 May 6;21:262. doi: 10.1186/s12909-021-02693-w

Table 4.

Differences and effect sizes in residents’ vs specialists’ share of total production

Comparison Test statistic, T Effect Size, r p-value
Spinal 2013 vs 2015 4 −0.56 .006
Spinal 2013 vs 2016 2 −0.59 .004
EDC 2013 vs 2015 6 −0.53 .010
EDC 2013 vs 2016 0 −0.54 .002
EDC 2015 vs 2017 44 0.60 .011
CVC 2013 vs 2015 12 −0.43 .034
CVC 2015 vs 2017 0 0.62 .008
CVC 2016 vs 2017 0 0.62 .008