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Table 2 Characteristics of included studies for multimorbid lumbar spinal stenosis with hip osteoarthritis

From: Prevalence of multimorbid degenerative lumbar spinal stenosis with knee or hip osteoarthritis: a systematic review and meta-analysis

Author, year

Country

Study design

Index condition: setting

Mean age (SD)

Sex (% female)

LSS case definition

LSS sample size

Hip OA case definition

Hip OA sample size

Multimorbid prevalence

LSS with comorbid hip OA

  Kim, 2008a [39]

Korea

Cohort

LSS: secondary care surgical setting

61 (NR)

100%

Combined: undergoing surgery

44

Imaging: K/L grade 2-4

0

0%

  Saito, 2012 [44]

Japan

Cohort

LSS: secondary care surgical setting

NR

NR

Combined: low back and leg pain + MRI/myelography/CT

420

Imaging: not described

15

4%

  Lee, 2012 [41]

Korea

Cross-sectional

LSS: secondary care surgical setting

66 (8.4)

100%

Combined: neurogenic claudication + MRI

106

Imaging: K/L grade 2-4

4

4%

  Schneider, 2019 [45]

USA

RCT

LSS: mixed general population/primary/secondary care

72 (7.8)

52%

Combined: clinical examination + MRI/CT

259

Clinical: ACR criteria

43

17%

  Burgstaller, 2020 [37]

Switzerland

Cohort

LSS: eight secondary care centers

73(8.5)

52%

Combined: neurogenic claudication + MRI/CT

601

Clinical: self-reported

102

17%

  Weiner, 2021 [46]

USA

Cohort

LSS: military veterans secondary care surgical setting

a

3%

Combined: neurogenic claudication + MRI

193

Combined: ACR clinical + radiographic criteria

68

35%

  1. LSS lumbar spinal stenosis, OA osteoarthritis, NR not reported, ACR American College of Rheumatology, MRI magnetic resonance imaging, CT = computed tomography, K/L Kellgren-Lawrence