Table 3.

Subgroup linear regression models in the first and second follow-up (1 and 6 months, respectively)

	Asmathic patients			Lund-Kennedy > 6			Lund-Mackey > 16			Previous surgeries
	RC	95% CI	PV	RC	95% CI	PV	RC	95% CI	PV	RC	95% CI	PV
First FU	0.22	−0.05–0.49	0.11	0.19	−0.01–0.38	0.06	0.26	0.01–0.5	0.04	0.25	−0,05–0.55	0.09
Second FU	0.32	0.09–0.55	0.01	0.29	0.12–0.45	0.001	0.29	0.09–0.5	0.008	0.27	0.09–0.46	0.01

RC regression coefficient, PV p value, FU follow-up