Table 3.

Cancer recurrence

	Paravertebral (n=50)	General Anesthesia (n=79)
Crude Recurrence	3 (6%)	19 (24%)
Percent of patients recurrence-free at 24 months [95% CI]	94 [87, 100]	82 [74, 91]*
Percent of patients recurrence-free at 36 months [95% CI]	94 [87, 100]	77 [68, 87]†
Recurrence location
Local or axillary nodes	1	11
Liver metastasis	1	3
Bone metastasis	1	3
Lung metastasis	0	2

Data are number (percent) or Kaplan Meier survival estimate [95% CI]

^*P = 0.038 comparing groups on Kaplan-Meier estimates at 24 months (z-test)

^†P = 0.007 comparing groups on Kaplan-Meier estimates at 36 months (z-test)