Usefulness of the Brief Scale for Psychiatric Problems in Orthopaedic Patients (BS-POP) for Predicting Poor Outcomes in Patients Undergoing Lumbar Decompression Surgery
Table 1
Preoperative demographic data, NRS symptom scores, and RDQ scores.
Low BS-POP
High BS-POP
value
N
135
22
Male/female
86/49
8/14
0.02
Mean age (y)
67.3 ± 10.3
66.5 ± 9.9
0.79
Spondylolisthesis (+/−)
70/65
12/10
0.81
Degenerative scoliosis (+/−)
25/110
5/17
0.65
Lumbar kyphosis (+/−)
11/124
3/19
0.43
Cauda equina symptoms (+/−)
80/55
10/12
0.22
Symptoms
Low back pain
4.2 ± 3.2
4.1 ± 3.0
0.81
Leg pain
4.7 ± 3.6
5.8 ± 3.1
0.28
Leg numbness
5.8 ± 3.2
5.8 ± 3.3
0.94
RDQ
Total score
10.9 ± 5.5
13.9 ± 5.4
0.03
Norm-based score
38.5 ± 11.2
35.2 ± 9.9
0.17
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.
