Usefulness of the Brief Scale for Psychiatric Problems in Orthopaedic Patients (BS-POP) for Predicting Poor Outcomes in Patients Undergoing Lumbar Decompression Surgery

Table 2

Satisfaction, NRS symptom scores, and RDQ scores at the 1-year follow-up.

	Low BS-POP	High BS-POP	value
N	135	22
Satisfaction	8.3 ± 2.0	7.2 ± 2.7	0.02
Satisfied group (+/−)	100/35	10/12	0.01
Symptoms
Low back pain	1.8 ± 2.3	4.2 ± 3.3	<0.01
Leg pain	1.5 ± 2.5	3.5 ± 3.4	0.01
Leg numbness	2.9 ± 3.0	4.3 ± 3.3	0.04
RDQ
Total score	5.9 ± 5.4	9.1 ± 6.0	0.02
Norm-based score	49.4 ± 8.9	44.1 ± 10.5	0.04

Results are expressed as mean ± standard deviation for NRS and RDQ scores. RDQ, Roland–Morris Disability Questionnaire; BS-POP, Brief Scale for Psychiatric Problems in Orthopaedic Patients; NRS, numerical rating scale.