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