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. 2010 Feb 13;468(8):2278–2283. doi: 10.1007/s11999-010-1252-5

Table 2.

Publication probability by postgraduate year

Postgraduate year Published before 80-hour rule Did not publish before 80-hour rule Published after 80-hour rule Did not publish after 80-hour rule Odds ratio (95% confidence interval) p Value
1 9 59 17 31 3.60 (1.46–8.85) •0.009
2 10 55 18 30 3.30 (1.37–7.93) •0.013
3 9 55 14 34 2.52 (1.00–6.33) 0.085
4 25 40 20 28 1.14 (0.54–2.43) 0.881
5 32 32 25 23 1.09 (0.52–2.29) 0.978
6 8 4 9 3 1.50 (0.28–8.04) 1.000*
Graduate Year 1 26 28 24 23 1.12 (0.52–2.45) 0.926
Graduate Year 2 20 25 19 30 0.79 (0.35–1.79) 0.728
Overall 139 302 146 206 1.54 (1.15–2.06) •0.005†,‡

•Statistically significant; *p value calculated with Fisher’s test; p value calculated with chi square test with Yates correction for continuity; statistically significant after correction with Bonferroni calculation, threshold p value < 0.00625 resulting from multiple tests.