Table 3.

NMSC recurrence rates five years after different treatments, in subgroups of tumors conventionally believed to be high-risk for recurrence

Tumors at High Risk for Recurrence	5 year recurrence rates [95% CI]
	University site				VA site
	No.	Destruction	Excision	Mohs surgery	No.	Destruction	Excision	Mohs surgery
Squamous cell carcinoma	189	4.9% [0, 11.4]	6.1% [0, 12.5]	0% [0, 4.0]	177	0% [0, 8.5]	3.1% [0, 6.5]	4% [0, 11.4]
Diameter ≥ 20 mm	211	15.4% [1.9, 27.0]	0% [0, 7.4]	1.6% [0, 4.6]	198	0% [0, 16.1]	3.7% [0, 7.3]	0% [0, 10.3]
Invasive histologically	577	5.1% [0, 10.5]	1.4% [0, 3.2]	2.2% [0.3, 4.1] 3	499	4.6% [0, 9.7]	3.6% [1.1, 6.1]	1.8% [0, 4.3]
Located in H-zone of face(Swanson etal., 1983)	269	9.5% [0, 25.6]	6.3% [0, 14.5]	1.2% [0, 2.8] 2	275	0% [0.0, 19.5]	5.8% [0.7, 10.7]	3% [0, 6.3]
High-risk location and size(NCCN, 2011)' 1	185	0% [0.0, 41.0]	7.0% [0, 15.9]	0% [0.0, 3.4]	175	0% [0, 36.9]	4.8% [0, 10.0]	3.2% [0, 7.5]

¹Tumor located in H-zone of face or hand or genitals; size >=6 mm

²P=0.05

³P=0.04