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. 2023 Feb 22;66(1):E88–E92. doi: 10.1503/cjs.020721

Table 1.

Research productivity of general surgeons in Canada with graduate degree training, stratified by type of degree

Metric Median (IQR)* p value
PhD
n = 49
MSc
n = 54
MClinEpi
n = 53
MPH
n = 24
MEd
n = 22
Other
n = 10
No. of years worked between 2013–2018, mean (median, IQR) 5.4 (6.0, 6.0–6.0) 5.3 (6.0, 6.0–6.0) 4.9 (6.0, 4.0–6.0) 4.7 (6.0, 3.0–6.0) 5.4 (6.0, 6.0–6.0) 4.7 (6.0, 3.0–6.0) MClinEpi v. PhD 0.759
All others > 0.999
No. of papers in 6 years 22.0 (8.0–34.5) 8.5 (4.0–27.3) 16.0 (6.0–29.0) 9.0 (4.0–33.8) 10.5 (2.8–25.3) 10.0 (5.0–18.8) MSc v. PhD 0.584
All others > 0.999
No. of papers per year 3.8 (1.7–6.9) 1.8 (1.0–4.5) 2.8 (1.4–6.4) 3.1 (1.3–6.0) 1.8 (0.6–5.2) 2.3 (1.0–5.1) MSc v. PhD 0.315
MEd v. PhD 0.723
All others > 0.999
CiteScore 5.1 (3.5–6.3) 4.6 (3.6–5.8) 4.5 (3.4–5.0) 3.7 (2.3–4.7) 3.7 (2.0–4.7) 3.6 (2.6–4.4) MClinEpi v. PhD 0.936
MPH v. PhD 0.040
MEd v. PhD 0.027
Other v. PhD 0.533
MPH v. MSc 0.304
MEd v. MSc 0.209
All others > 0.999
No. of first authorships in 6 years 1.0 (0–3.0) 0 (0–1.3) 2.0 (0–4.0) 1.0 (0–2.8) 1.0 (0–2.3) 2.0 (0–4.5) MSc v. PhD 0.076
MClinEpi v. MSc 0.007
Other v. MSc 0.641
MPH v. MClinEpi 0.978
All others > 0.999
No. of last authorships in 6 years 5.0 (1.0–8.0) 2.0 (0.8–6.3) 2.0 (0.5–6.5) 1.5 (0–8.8) 1.5 (0–7.3) 2.0 (0–6.3) MSc v. PhD 0.965
All others > 0.999
No. of middle authorships in 6 years 14.0(4.5–24.5) 6.0 (2.8–18.5) 9.0(2.0–19.5) 5.5 (2.3–20.5) 7.0 (0.8–18.0) 4.0 (1.8–10.3) Other v. PhD 0.804
All others > 0.999
No. of citations per paper 10.5 (6.0–15.0) 10.5 (3.9–16.3) 9.0 (6.0–11.8) 6.8 (3.0–12.1) 6.5 (3.0–11.5) 6.8 (2.9–13.9) MPH v. PhD 0.538
MEd v. PhD 0.185
MEd v. MSc 0.550
All others > 0.999
6-year h-index 11.0(5.5–15.5) 7.0 (3.0–12.0) 9.0(4.5–12.5) 6.5 (2.3–12.8) 6.0 (2.8–14.0) 6.5 (2.5–10.0) MSc v. PhD 0.287
Ed v. PhD 0.540
All others > 0.999
No. of basic science papers 2.0 (0–9.0) 0 (0–3.3) 0 (0–0) 0 (0–0) 0 (0–0) 0 (0–0) MClinEpi v. PhD < 0.001
MPH v. PhD < 0.001
MEd v. PhD 0.001
Other v. PhD 0.007
MClinEpi v. MSc 0.0117
MPH v. MSc 0.054
MEd v. MSc 0.109
Other v. MSc 0.174
All others > 0.999
No. of clinical papers 15.0(5.5–33.0) 7.5 (3.5–21.3) 15.0(6.0–28.5) 9.0 (3.3–33.8) 10.0(2.8–25.3) 10.0 (5.0–18.0) MSc v. PhD 0.513
MClinEpi v. MSc 0.701br> All others > 0.999
No. (%) of surgeons with< 1 publication per year 8 (16.3 ) 11 (20.4) 8 (15.1) 5 (20.8) 7 (31.8) 2 (20)
No. of review articles 2.0 (1.0–4.0) 1.0 (0–4.0) 2.0 (0–4.5) 1.5 (1.0–4.5) 1.0 (0–5.0) 1.5 (0–4.3) All > 0.999
No. of book chapters 0 (0–1.0) 0 (0–1.0) 0 (0–0) 0 (0–1.0) 0 (0–0.3) 0 (0–0) All > 0.999
No. of primary literature or general articles 19.0 (5.5–28.0) 7.5 (2.8–22.5) 11.0 (4.5–22.0) 7.5 (2.3–25.5) 7.5 (1.0–18.5) 8.5 (1.8–13.8) MSc v. PhD 0.368
MPH v. PhD 0.924
MEd v. PhD 0.457
All others > 0.999
No. of narrative papers 0 (0–2.5) 0 (0–1.3) 0 (0–1.0) 0 (0–1.8) 1.0 (0–2.3) 0 (0–1.3) MSc v. PhD 0.856
All others > 0.999

IQR = interquartile range; MClinEpi = master’s of clinical epidemiology; MEd = master’s of education; MPH = master’s of public health; MSc = master’s of science.

*

Unless indicated otherwise.