Effect of Low Back Pain Risk-Stratification Strategy on Patient Outcomes and Care Processes: the MATCH Randomized Trial in Primary Care

doi:10.1007/s11606-018-4468-9

Table 3

Secondary patient outcomes at 6-month follow-up

	Pre-intervention				Post-intervention				Difference	OR	95% CI
	N	Change	Prop.	95% CI	N	Change	Prop.	95% CI	Difference	OR	95% CI
Continuous outcomes
Depression (PHQ-8)
Control clinics	296	− 1.90		(− 2.39, − 1.41)	544	− 1.41		(− 1.80, − 1.03)	0.49		(− 0.06, 1.04)
Intervention clinics	245	− 1.94		(− 2.47, − 1.41)	427	− 1.57		(− 1.99, − 1.15)	0.36		(− 0.24, 0.97)
Difference		− 0.04		(− 0.76, 0.68)		− 0.16		(− 0.73, 0.41)	− 0.12		(− 0.94, 0.70)
P value											0.770
Anxiety (GAD-7)
Control clinics	297	1.13		(0.74, 1.51)	541	0.92		(0.64, 1.21)	− 0.21		(− 0.68, 0.27)
Intervention clinics	245	1.02		(0.60, 1.45)	425	0.83		(0.50, 1.15)	− 0.20		(− 0.73, 0.33)
Difference		− 0.10				− 0.10		(− 0.53, 0.33)	0.01		(− 0.71, 0.72)
P value											0.988
Fear of movement (TSK)
Control clinics	297	− 4.19		(− 5.19, − 3.18)	537	− 4.31		(− 5.10, − 3.52)	− 0.12		(− 1.27, 1.02)
Intervention clinics	244	− 4.53		(− 5.63, − 3.44)	422	− 4.08		(− 4.95, − 3.21)	0.46		(− 0.82, 1.73)
Difference		− 0.35		(− 1.83, 1.14)		0.23		(− 0.95, 1.41)	0.58		(− 1.13, 2.29)
P value											0.506
Self-efficacy (PSEQ)
Control clinics	297	3.17		(1.94, 4.40)	543	3.96		(2.97, 4.94)	0.79		(− 0.56, 2.13)
Intervention clinics	244	3.25		(1.92, 4.58)	423	4.31		(3.23, 5.39)	1.06		(− 0.44, 2.56)
Difference		0.08		(− 1.73, 1.89)		0.36		(− 1.11, 1.81)	0.28		(− 1.74, 2.29)
P value											0.789
Effect on work productivity
Control clinics	155	− 1.37		(− 1.69, − 1.05)	284	− 1.44		(− 1.69, − 1.20)	− 0.08		(− 0.45, 0.30)
Intervention clinics	119	− 1.68		(− 2.04, − 1.32)	209	− 1.45		(− 1.73, − 1.17)	0.23		(− 0.20, 0.67)
Difference		− 0.32		(− 0.80, 0.16)		− 0.01		(− 0.38, 0.36)	0.31		(− 0.26, 0.88)
P value											0.288
Hours of work lost due to BP
Control clinics	155	− 2.41		(− 3.20, − 1.61)	283	− 2.94		(− 3.53, − 2.35)	− 0.53		(− 1.52, 0.46)
Intervention clinics	119	− 3.33		(− 4.24, − 2.42)	209	− 2.49		(− 3.17, − 1.81)	0.84		(− 0.30, 1.98)
Difference		− 0.92		(− 2.13, 0.28)		0.45		(− 0.45, 1.35)	1.37		(− 0.13, 2.88)
P value											0.074
Binary outcomes
Very satisfied with care
Control clinics	284		0.50	(0.33, 0.67)	519		0.56	(0.42, 0.70)		1.27	(0.83, 1.94)
Intervention clinics	235		0.41	(0.25, 0.56)	420		0.41	(0.29, 0.52)		1.01	(0.63, 1.61)
OR			0.69	(0.42, 1.15)			0.55	(0.37, 0.80)		0.79	(0.42, 1.49)
P value											0.471
Very satisfied with treatment
Control clinics	256		0.41	(0.26, 0.55)	415		0.38	(0.27, 0.49)		0.91	(0.57, 1.44)
Intervention clinics	209		0.26	(0.15, 0.37)	333		0.29	(0.19, 0.38)		1.15	(0.68, 1.95)
OR			0.51	(0.29, 0.89)			0.65	(0.42, 1.00)		1.26	(0.63, 2.54)
P value											0.516
Very satisfied with information about cause of pain
Control clinics	289		0.31	(0.19, 0.43)	517	0.41		(0.29, 0.52)		1.52	(0.94, 2.46)
Intervention clinics	243		0.30	(0.17, 0.43)	416	0.36		(0.24, 0.48)		1.29	(0.76, 2.20)
OR			0.967	(0.54, 1.72)		0.82		(0.53, 1.26)		0.85	0.41, 1.740
P value											0.65
Completely recovered or much better (PGIC)
Control clinics	297		0.26	(0.15, 0.36)	537		0.34	(0.24, 0.44)		1.51	(0.93, 2.46)
Intervention clinics	245		0.31	(0.17, 0.44)	423		0.38	(0.26, 0.51)		1.38	(0.81, 2.37)
OR			1.31	(0.73, 2.33)			1.19	(0.77, 1.84)		0.91	(0.44, 1.89)
P value											0.810