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. 2024 Aug 19;24:892. doi: 10.1186/s12909-024-05837-w

Table 2.

Predictors of success and failure in certification exams

Author/ year/ sample size/country/RoB Predictor OR (95% CI) P Value Outcome Baseline risk for outcome Predictor/absolute success or failure change
Age

Grierson, 2017 [15]

N = 469

Canada

Age 10 years decrement 1.68 (1.15, 2.44) 0.007 Success on Simulated Office Orals component of the Certification in The College of Family Physicians examination 91.5% Each 10 years decrement in age increase success rate by 3.3% (95%CI: 1–4.8% more)

Grierson, 2017 [15]

N = 469 Canada

1.86 (1.33, 2.60) 0.001 Success on Short Answer Management Problems component of the Certification in The College of Family Physicians examination 85.5% Each 10 years decrement in age increase success rate by 6.1% (95%CI: 3.2–8.4% more)

Grierson, 2017 [15]

N = 469 Canada

1.76 (1.32, 2.33) 0.001 Success on composite Certification in The College of Family Physicians examination 79.3% Each 10 years decrement in age increase success rate by 7.8% (95%CI: 4.2–10.6% more)

Grierson, 2017 [15]

N = 431 Canada

1.54 (1.08, 2.18) 0.02 Success on Royal College of Physicians and Surgeons of Canada certification examination 84.4% Each 10 years decrement in age increase success rate by 4.9% (95%CI: 1–7.8% more)

Menzies, 2015 [42]

N = 2,056

UK

Age 10 years decrement 0.71 (0.53, 0.97) 0.029 Membership of the Royal College of Paediatrics and Child Health (MRCPCH) part 1B examination outcome 41% Each 10 years decrement in age decrease success rate by 8% (95%CI: 0.7% less to 14.1% less)

Tiffin, 2014 [39]

N = 52,871 doctors

UK

Age 10 years decrement 1 (0.86, 1.16) 0.39

Less satisfactory Annual Review of Competence Progression

(ARCP) outcome for international medical graduates (IMG) versus UK graduates (Ordinal outcome)

NR

Sturesson, 2020 [28]

N = 564, Sweden

NR NR Failing Licensing Exam Older candidates were more likely to fail

Haukilahti, 2012 [44]

N = 383

Finland

Age < 35 vs. ≥ 35 1.02 (0.44, 2.38) 0.96 Success in licensing examinations of IMG doctors in Finland 51.3% IMG doctors < 35 vs. ≥ 35 was 0.5% more (20% less to 20.2% more) likely to pass the licensing exams
Sex: Female vs. Male

Grierson, 2017 [15]

N = 469

Canada

Female vs. Male 1.96 (1.15, 3.33) < 0.01 Success on Short Answer Management Problems component of the Certification in The College of Family Physicians examination 85.5% Female were more likely to be successful 6.5% more (95%CI: 1.7 to 9.7% more)

Menzies, 2015 [42]

N = 2,056

UK

Female vs. Male 0.95 (0.77, 1.18) 0.63 Membership of the Royal College of Paediatrics and Child Health (MRCPCH) part 1B examination outcome 41% Female were less likely to be successful 1.2% less (95%CI: 6.1 less to 4% more)

Haukilahti, 2012 [44]

N = 383, Finland

Female vs. Male 1.80 (1.02, 3.16) 0.041 Success in licensing examinations of IMG doctors in Finland 51.3% Female were more likely to pass the exam 14.2% more (95%CI: 0.5–25.6% more)

Shaw, 2014 [41]

N = 116

UK

Female vs. Male 3.33 (1.01, 11.11) 0.048

Passing Clinical skill assessment

In trainees who completed ST3 year General Practice Speciality in UK

68% Female were more likely to pass the exam 19.6% more (95%CI: 0.2–28% more)

Tiffin, 2014 [39]

N = 52,871 doctors

UK

Female vs. Male 1.29 (1.23, 1.34) NR Obtaining more satisfactory Annual Review of Competence Progression (ARCP) outcome (outcome is ordinary variable) to assess all doctors in UK postgraduate training Females were more likely to obtain more satisfactory Annual Review of Competence Progression (ARCP)

Mathews, 2017 [31]

N = 876

Canada

Sex (Female vs. Male) 1.67 (1.20, 2.33) 0.002 Obtain Speciality Designation in family medicine

Female IMG were more likely obtain speciality designation.

8% (95%CI: 3%,11%)

Fluency in English

Grierson, 2017 [15]

N = 469

Canada

Fluency in English 2.14 (1.25, 3.65) < 0.01 Success on Short Answer Management Problems component of the Certification in The College of Family Physicians examination 85.5% Fluent candidates were 7.16% (95%CI: 2.55–10.06%) more likely to be successful.

Grierson, 2017 [15]

N = 469, Canada

Fluency in English 1.89 (1.18, 3.0) 0.008 Success on composite Certification in The College of Family Physicians examination 79.3%

Fluent candidates were more likely to be successful.

8.6% more (95%CI: 2.6%, 12.7% more)

Grierson, 2017 [15]

N = 431

Canada

Fluency in English 1.87 (1.04, 3.38) 0.04 Success on Royal College of Physicians and Surgeons of Canada certification examination 84.4%

Fluent candidates were more likely to be successful.

6.6% more (95%CI: 0.5%, 10.4% more)

Patterson, 2018 [1]

N = 1,874

UK

English fluency

1 score IELTS test

Coefficient (95%CI) Linear regression 4.21 (3.18, 5.25) < 0.001 Clinical Skills Assessment (CSA) component of Membership of the Royal College of General Practitioners (MRCGP) One score increase in IELTS (ranging 1–9) was associated with 4 (95%CI: 3–5) score increase in CSA
Race and Ethnicity

Bessant, 2006 [43]

N = 483

UK

White ethnic origin 2.04 (1.42, 2.94) 0.023 success of candidates taking a revision course in preparation for the MRCP (UK) PACES (practical assessment of clinical examination skills) examination. 45.3%

White ethnicity graduates were more likely pass PACES

17.5% (95%CI: 8.7%, 25.6%)

Tiffin, 2014 [39]

N = 52,871 doctors

UK

White vs. Non-white ethnicity 1.39 (0.94, 2.04) NR Obtaining less satisfactory Annual Review of Competence Progression (ARCP) outcome (outcome is ordinary variable) to assess all doctors in UK postgraduate training NA (outcome is an ordinary variable)
Nationality

Haukilahti, 2012 [44]

N = 383, Finland

Nationality Other vs. Russian 1.35 (0.81, 2.27) 0.247 Success in licensing examinations of IMG doctors in Finland 51.3% 7% (95%CI: -5%,19%)

Schabort, 2014 [14]

CFPC, N = 69; RCPSC, N = 85

Canada

Country of birth (Other vs. Canada) 1.54 (0.49, 4.87) 0.46 Success in Certification examination–College of Family Physicians of Canada, simulated office oral (SOO) and short-answer management problem (SAMP) 71% 8% (95%CI: -16%, 21%)

Schabort, 2014 [14]

CFPC, N = 69; RCPSC, N = 85

Canada

Country of birth (Other vs. Canada) 1.53 (0.50, 4.73) 0.46 Success on first try of Royal College of Physicians and Surgeons of Canada (RCPSC) examination. 78% 6% (95%CI: -14%, 16%)
Time from Graduation/ Graduation Recency

Haukilahti, 2012 [44]

N = 383

Finland

Time from graduation < 10vs ≥ 10 1.20 (0.52, 2.86) 0.658 Success in licensing examinations of IMG doctors in Finland 51.3% 5% (95%CI: -15%, 24%)

Schabort, 2014 [14]

CFPC, N = 69; RCPSC, N = 85

Canada

Years since graduation 1.05 (0.87, 1.25) 0.63 Success in Certification examination–College of Family Physicians of Canada, simulated office oral (SOO) and short-answer management problem (SAMP) 71% 1% (95%CI: -3%, 4.4%)
Place of Qualification/Graduation

Menzies, 2015 [42]

N = 2,056

UK

Place of qualification (UK graduates vs. IMG) 3.17 (2.41, 4.17) < 0.001 Membership of the Royal College of Paediatrics and Child Health (MRCPCH) part 1B examination outcome 41%

UK graduates were more likely to pass MRCPCH exam

28% more (95%CI: 22–33% more)

Bessant, 2006 [43]

N = 483

UK

Graduated from UK medical school.

N = 483

4.87(3.86, 5.72) 0.003 Success of candidates taking a revision course in preparation for the MRCP (UK) PACES (practical assessment of clinical examination skills) examination 45%

Graduates from UK vs. overseas medical schools were more likely pass PACES

35% more (95%CI: 31–37% more)

UK graduates with White ethnic origin

N = 227

2.15 (1.21, 3.81) 0.012

White vs. non-white ethnic UK graduates were more likely pass PACES

19% (95%CI: 5%, 31%)

Shaw, 2014 [41]

N = 116

UK

European vs. non-European university 21.3 (5.6, 91.3) < 0.001

Passing Clinical skill assessment

in trainees who completed ST3 year in UK

50% Candidates graduated from European universities were 45.5% more (95%CI: 34.9 to 48.9% more) likely to pass CSA
Previous Experience

Schabort, 2014 [14]

CFPC, N = 69; Canada

Previous Internship 2.34 (0.61, 8.92) 0.22 Success in Certification examination–College of Family Physicians of Canada, simulated office oral (SOO) and short-answer management problem (SAMP) 71% Previous internship associated with 14% more (95%CI: 11% less to 25% more) success
Previous residency 0.92 (0.29, 2.89) 0.88 Previous residency associated with 2% less (95%CI: 29% less to 17% more) success
Professional experience 0.39 (0.098, 1.54) 0.18 Previous residency associated with 22% less (95%CI: 52% less to 8% more) success
Research experience 1.18 (0.40, 3.54) 0.76 Previous residency associated with 3% more (95%CI: 22% less to 19% more) success

Schabort, 2014 [14]

RCPSC, N = 85 Canada

Previous Internship 4.09 (1.24, 13.5) 0.02 Success on first try of Royal College of Physicians and Surgeons of Canada (RCPSC) examination. 78%

IMG residents who previously completed internship were more likely to pass RCPSC exam on first try

16% (95%CI: 3%, 20%)

Previous residency 1.48 (0.46, 4.76) 0.51 6% (95%CI: -15%, 16%)
Professional experience 0.49 (0.14, 1.66) 0.25 -15% (95%CI: -45%, 7%)
Research experience 0.67 (0.20, 2.26) 0.52 -8% (95%CI: -37%, 11%)

Sturesson, 2020 [28]

N = 564 Sweden

Participating in Complementary Program for physician (CPP) NR NR Failing licensing exam NR Participants in CPP were less likely failing licensing exam

Schabort, 2014 [14]

CFPC, N = 69; Canada

Human Development Index value (HDI) 0.49 (0.002, 97.7) 0.79 Success in Certification examination–College of Family Physicians of Canada, simulated office oral (SOO) and short-answer management problem (SAMP) 71% -43% (95%CI: -78%, 21%)

Schabort, 2014 [14]

CFPC, N = 69; RCPSC, N = 85 Canada

Human Development Index value (HDI) 0.15 (0.001, 37.9) 0.50 Success on first try of Royal College of Physicians and Surgeons of Canada (RCPSC) examination 78% -43% (95%CI: -78%, 21%)

Grierson, 2017 [15]

N = 431

Canada

Human Development Index value (HDI) 41.75 (4.29, 406.05) 0.001 84%

Candidates from countries with higher HDI are more likely to succeed.

15% (95%CI: 11%, 16%)

Previous exam and qualifications
USA

Peterson, 2020 [33]

N = 3,255 USA

USMLE Step1 0.99 (0.99, 1.01) NR Failing to obtain American board of family medicine (ABFM) certificate by IMGs 8% failed Each higher score in USMLE step 1 reduce probability of failing by 0.07% (95%CI: 0.07%less to 0.07% more)
USMLE Step 2 Communication and interpersonal skills 1.00 (0.98, 1.02) NR Each higher score in USMLE step 2 do not change probability of failing (95%CI: 0.15%less to 0.15% more)

USMLE Step 2

Spoken English proficiency

1.04 (1.02, 1.06) NR Each higher score in USMLE step 2 Spoken English proficiency increase probability of probability of failing by 0.3% (95%CI: 0.15–0.44% more)

USMLE Step 2

Integrated clinical encounter

0.99 (0.97, 1.01) NR Each higher score in USMLE step 2 Integrated clinical encounter reduce probability of failing by 0.07% (95%CI: 0.22%less to 0.07% more)
USMLE Step 2 CK 0.99 (0.98, 0.99) NR Each higher score in USMLE step 2 CK reduce probability of failing by 0.07% (95%CI: 0.07–0.15% less
USMLE Step 3 0.99 (0.98, 1.00) NR Each higher score in USMLE step 3 reduce probability of failing by 0.07% (95%CI: 0.00–0.15% less
ABFM in-training examination (ITE) PGY-1 0.99 (0.99, 0.99) NR IMGs who got higher score on ITE PGY1 were less likely to fail in ABFM certificate. -0.07%
ABFM ITE PGY-2 0.99 (0.99, 0.99) NR IMGs who got higher score on ITE PGY2 were less likely to fail in ABFM certificate. -0.07%
ABFM ITE PGY-3 0.99 (0.99, 0.99) NR IMGs who got higher score on ITE PGY3 were less likely to fail in ABFM certificate. -0.07%
Exam in UK

Menzies, 2015 [42]

N = 2,056

UK

Part 1 A concurrently undertaken 1.21 (0.81, 1.83) 0.36 Membership of the Royal College of Paediatrics and Child Health (MRCPCH) part 1B examination outcome 41% 4.7% more (5% less to 15% more)

Patterson, 2018 [1]

N = 1,874 UK

Clinical Problem-Solving Test CPST Coefficient (95%CI) Linear regression 0.05 (0.04, 0.07) < 0.001 Clinical Skills Assessment (CSA) component of Membership of the Royal College of General Practitioners (MRCGP) NR One score increase in CPST was associated with 0.05 (95%CI: 0.04, 0.07) score increase in CSA
Situational Judgment Test SJT Coefficient (95%CI) Linear regression 0.07 (0.05, 0.09) < 0.001

IMG with higher SJT score were more likely pass the CSA

One score increase in SJT was associated with 0.07 (95%CI: 0.05, 0.09) score increase in CSA

Bessant, 2006 [43]

N = 483

UK

Passed part 2 written paper first time in all candidates. 3.64 (2.31, 5.73) 0.002 success of candidates taking a revision course in preparation for the MRCP (UK) PACES (practical assessment of clinical examination skills) examination 45%

Candidates who passed part 2 written paper first time were more likely to pass PACES

30% (95%CI: 20%, 37%)

Exam in Canada

Mathews, 2017 [31]

N = 876

Canada

Had skill assessment (Yes vs. No) NR NS Obtain Speciality Designation in family medicine 78.1%
Years between MD and PGME ≥ 6 years vs. ≤ 5 years NR NS

Green: Low risk of bias, Yellow: moderate risk of bias, Red: high risk of bias

NS = Not-significant, NR = Not reported, Bold font = Significant;