TABLE 1.
Inguinal Hernia Drill, Resident OSATS Scores by Attempt vs. Attending Scores
Average Resident OSATS Score Attempt 1 | Average Resident OSATS Score Attempt 2 | Average Resident OSATS Score Attempt 3 | Average Resident OSATS Score Attempt 4 | Change from Attempt 1 to 4 | P value | Median Attending OSATS Score (n = 3) | Median Resident OSATS Score Attempt 1 (n = 20) | P value | Median Resident OSATS Score Attempt 4 (n=19) | P value | |
---|---|---|---|---|---|---|---|---|---|---|---|
Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | 1st vs. 4th Attempt | Median (Min-Max) | Median (Min-Max) | Resident 1st Attempt vs. Attending | Median (Min-Max) | Resident 4th Attempt vs. Attending | |
Respect for tissue | 2.9 ± 0.4 | 3.2 ± 0.4 | 3.5 ± 0.4 | 3.8 ± 0.5 | 1.0 ± 0.5 | <0.0001 | 5 (5–5) | 3 (2–3.5) | 0.0044 | 4 (2.5–4.5) | 0.0047 |
Time and motion | 2.3 ± 0.7 | 2.9 ± 0.6 | 3.1 ± 0.7 | 3.8 ± 0.7 | 1.4 ± 0.7 | <0.0001 | 3.5 (3.5–4) | 2.5 (1–4) | 0.0106 | 3.5 (2–4.5) | 0.6877 |
Instrument handling | 2.5 ± 0.6 | 3.0 ± 0.5 | 3.4 ± 0.5 | 3.9 ± 0.4 | 1.3 ± 0.6 | <0.0001 | 4 (4–4.5) | 2.5 (1.5–3.5) | 0.0051 | 4 (3–4.5) | 0.2131 |
Flow and forward progress | 2.4 ± 0.7 | 3.0 ± 0.5 | 3.2 ± 0.7 | 3.8 ± 0.4 | 1.3 ± 0.7 | <0.0001 | 4.5 (4–4.5) | 2.5 (1.5–3.5) | 0.0054 | 4 (3–4.5) | 0.0622 |
Tissue exposure | 3.0 ± 0.5 | 3.4 ± 0.7 | 3.7 ± 0.5 | 4.0 ± 0.4 | 1.0 ± 0.4 | <0.0001 | 5 (4.5–5) | 3 (2–4) | 0.0047 | 4 (3.5–4.5) | 0.0123 |
Summary score | 2.4 ± 0.7 | 3.0 ± 0.7 | 3.3 ± 0.6 | 3.9 ± 0.5 | 1.5 ± 0.7 | <0.0001 | 4.5 (4–5) | 2.5 (1–4) | 0.0062 | 4 (3–4.5) | 0.0992 |
Total OSATS | 15.5 ± 3.3 | 18.5 ± 3.2 | 20.1 ± 2.8 | 23.3 ± 2.4 | 7.5 ± 3.1 | <0.0001 | 26.5 (25–28) | 15.5 (9.5–22) | 0.0061 | 23.5 (18.5–27) | 0.0440 |
Time (minutes) | 28.5 ± 9.3 | 25.2 ± 8.7 | 23.1 ± 5.3 | 20.5 ± 5.6 | −7.3 ± 8.7* | <0.0001 | 14 (10–15) | 28 (18–56) | 0.0061 | 19 (11–31) | 0.0241 |
OSATS: the modified objective structured assessment of technical skills.
Median = −6 minutes, Min = −37 minutes, Max = 0 minutes