Table 3.

Change in patient weight

	Fast Recovery
	No		Yes
Weight (Kg)	N	Mean ± SD	N	Mean ± SD	p-value**
Pre-operative	294	73.1 ± 15.6	44	76.1 ± 14.4	0.229
Pre-discharge	273	71.6 ± 15.6	43	76.2 ± 13.6	0.069
Change vs. pre-operative	273	− 1.7 ± 4.1	43	0.5 ± 4.2	0.001
p-value*	-	p < 0.001*	-	p = 0.486*	-
Six-week review	165	66.7 ± 14.8	29	72.6 ± 12.8	0.047
Change vs. pre-operative	165	− 6.9 ± 5.1	29	− 4.3 ± 5.7	0.013
p-value*	-	p < 0.001*	-	p < 0.001*	-

Bold p-values are significant at p < 0.05

^*p-value from a paired t-test, assessing the change in weight for the two groups separately; only those with weight measurements at both time points were included in this analysis

^**p-value from an independent samples t-test, comparing between the two groups