Table 2.

Patient characteristics: spontaneous regression versus persistent disease

Patient characteristicsPersistent disease (%)Regress disease (%)P
N72 (72)28 (28)
Current tobacco use (n = 42)26/42 (61.9)16/42 (38.1)0.21
Hormonal birth control (n = 52)39/52 (75)13/52 (25)0.95
Age > 25 (n = 75)58/75 (77.3)17/75 (22.7)0.06
HLA*A201, yes (n = 30)23/30 (76.7)7/30 (23.3)0.41