Table 3.

Estimated proportions of successful responders among patients who were treated by the decompression and adhesiolysis using an inflatable balloon catheter.

	Follow-Up (Months)	Below 50% (n = 48), Estimated Proportion (95% CI)	50–85% (n = 79), Estimated Proportion (95% CI)	85–100% (n = 148), Estimated Proportion (95% CI)	p- Value
Successful	1	0.688 (0.556–0.819)	0.633 (0.527–0.739)	0.662 (0.586–0.738)	0.812
Responder	3	0.542 (0.401–0.683)	0.582 (0.474–0.691)	0.628 (0.551–0.706)	0.528
	6	0.292 (0.163–0.420)	0.468 (0.358–0.578)	0.507 (0.426–0.587)	0.038

The patients were divided into groups of less than 50%, 50–85%, and 85–100% depending on the success rate of the ballooning procedure for multiple target sites. Successful response was defined as: 1) ≥50% (or ≥4-point) reduction from baseline leg NRS; and no increase from baseline ODI and MQS; and ≥4 points on the GPES scale; or 2) ≥30% (or ≥2-point) reduction from baseline NRS with any one of the following criteria; simultaneous ≥30% (or ≥10-point) reduction in ODI from baseline; or ≥5 points on the GPE scale; or no increase from the baseline MQS. A generalized estimating equation was used in the statistical analysis. Data are expressed as estimated proportions and 95% confidence interval (CI). GPES = global perceived effect of satisfaction; MQS = medication quantification scale; ODI = Oswestry disability index.