Table 3.

Learning curve—reductions in operative time with surgical experience

Experience	BRM			CABG			TKR
	Operative time reduction (min)	Total operative time (min)	Operative time reduction (%)	Operative time reduction (min)	Total operative time (min)	Operative time reduction (%)	Operative time reduction (min)	Total operative time (min)	Operative time reduction (%)
0	0	193.3097	0.0	0	223.24841	0.0	0	200.1773	0.0
1	−7.5867	185.723	3.9	−1.1694099	222.079	0.5	−8.1803	191.997	4.1
2	−14.7546	178.5551	7.6	−2.3388198	220.90959	1.0	−16.0912	184.0861	8
3	−21.5037	171.806	11.1	−3.5082297	219.74018	1.6	−23.7327	176.4446	11.9
4	−27.834	165.4757	14.4	−4.6776396	218.57077	2.1	−31.1048	169.0725	15.5
5	−33.7455	159.5642	17.5	−5.8470495	217.40136	2.6	−38.2075	161.9698	19.1
6	−39.2382	154.0715	20.3	−7.0164594	216.23195	3.1	−45.0408	155.1365	22.5
7	−44.3121	148.9976	22.9	−8.1858693	215.06254	3.7	−51.6047	148.5726	25.8
8	−48.9672	144.3425	25.3	−9.3552792	213.89313	4.2	−57.8992	142.2781	28.9
9	−53.2035	140.1062	27.5	−10.524689	212.72372	4.7	−63.9243	136.253	31.9
10	−57.021	136.2887	29.5	−11.694099	211.55431	5.2	−69.68	130.4973	34.8
11	−60.4197	132.89	31.3	−12.863509	210.3849	5.8	−75.1663	125.011	37.5
12	−63.3996	129.9101	32.8	−14.032919	209.21549	6.3	−80.3832	119.7941	40.2
13	−65.9607	127.349	34.1	−15.202329	208.04608	6.8	−85.3307	114.8466	42.6
14	−68.103	125.2067	35.2	−16.371739	206.87667	7.3	−90.0088	110.1685	45
15	−69.8265	123.4832	36.1	−17.541148	205.70726	7.9	−94.4175	105.7598	47.2
16	−71.1312	122.1785	36.8	−18.710558	204.53785	8.4	−98.5568	101.6205	49.2
17	−72.0171	121.2926	37.3	−19.879968	203.36844	8.9	−102.427	97.7506	51.2
18	−72.4842	120.8255	37.5	−21.049378	202.19903	9.4	−106.027	94.1501	53
19	−72.5325	120.7772	37.5	−22.218788	201.02962	10	−109.358	90.819	54.6

BRM, bilateral reduction mammoplasty; CABG, coronary artery bypass grafting; TKR, total knee replacement.