Effectiveness of patient education plus motor control exercise versus patient education alone versus motor control exercise alone for rural community-dwelling adults with chronic low back pain: a randomised clinical trial

Table 5 Contingency table for reporting ≥ 30% minimal clinically important difference in pain intensity and disability level at 8 and 20 weeks

Variables	Time	30% MCID	PE plus MCE n (%)	PE n (%)	MCE n (%)	χ²	P value
NPRS (0–10)	8 weeks	Benefit	30 (75.0)	20 (50.0)	21 (59.2)	6.27	0.04*
	8 weeks	No benefit	10 (25.0)	20 (50.0)	19 (40.8)
	20 weeks	Benefit	31 (77.5)	20 (50.0)	26 (65.0)	6.59	0.03*
	20 weeks	No benefit	9 (22.5)	20 (50.0)	14 (35.0)
ODI (0–100)	8 weeks	Benefit	23 (57.5)	17 (42.5)	30 (75.0)	8.70	0.01*
	8 weeks	No benefit	17 (42.5)	23 (57.5)	10 (25.0)
	20 weeks	Benefit	26 (65.0)	19 (47.5)	30 (75.0)	6.61	0.03*
	20 weeks	No benefit	14 (35.0)	21 (52.5)	10 (25.0)

Benefit indicates participants reaching or exceeding 30% reduction in NPRS or ODI scores from baseline
No benefit indicates participants not reaching 30% reduction in NPRS or ODI scores from baseline
NPRS Numeric pain rating scale, ODI Oswestry disability index, PE Patient education, MCE Motor control exercise, MCID Minimal clinically important difference

ISSN: 1471-2474