Table 1 Demographic and clinical data
CN group (n = 41) | CP group (n = 32) | p value a | Total (n = 73) | |
|---|---|---|---|---|
Age [year] | 65.41 ± 11.60 | 61.83 ± 13.76 | 0.570 | 64.73 ± 11.61 (42-84) |
Male sex | 27 (65.9%) | 17 (53.1%) | 0.337 | 44 (60.3%) |
BMI | 22.97 ± 3.25 | 24.27 ± 3.75 | 0.120 | 23.54 ± 3.52 |
Underlying disease | ||||
Diabetes mellitus | 14 (34.1%) | 7 (21.9%) | 0.304 | 21 (28.8%) |
Rheumatic disease | 3 (7.3%) | 1 (3.1%) | 0.626 | 4 (5.5%) |
Liver cirrhosis | 2 (4.9%) | 0 (0%) | 0.501 | 2 (2.7%) |
Chronic kidney disease | 1 (2.4%) | 0 (0%) | 1.000 | 1 (1.4%) |
Alcohol | 13 (31.7%) | 4 (12.5%) | 0.092 | 17 (23.3%) |
Smoking | 15 (36.6%) | 6 (18.8%) | 0.121 | 21 (28.8%) |
History of spinal procedures | 27 (65.9%) | 18 (56.3%) | 0.471 | 45 (61.6%) |
Epidural injection | 25 (55.6%) | 18 (50.0%) | 0.659 | 43 (53.1%) |
Acupuncture [oriental medicine] | 10 (24.4%) | 4 (12.5%) | 0.242 | 14 (19.2%) |
Fever [°C, > 37.3] | 11 (26.8%) | 8 (25.0%) | 1.000 | 19 (26.0%) |
Neurological symptom | 17 (41.5%) | 20 (62.5%) | 0.100 | 37 (50.7%) |
Features of PVO | ||||
Extent of affected lesion [level] | 1.49 ± 0.93 (1-5) | 2.09 ± 1.28 (1-5) | 0.022 | 1.75 ± 1.13 (1-5) |
Epidural abscess | 18 (43.9%) | 27 (84.4%) | 0.001 | 45 (61.6%) |
Psoas abscess | 17 (41.5%) | 13 (40.6%) | 1.000 | 30 (41.1%) |
Paraspinal abscess | 27 (65.6%) | 23 (71.9%) | 0.612 | 50 (68.5%) |
Duration of hospital stay [days] | 50.32 ± 19.96 (21-120) | 62.88 ± 26.04 (26-143) | 0.022 | 55.82 ± 23.51 (21-143) |
Follow up period [months] | 18.00 ± 11.16 (6-42) | 16.38 ± 12.48 (6-63) | 0.560 | 17.29 ± 11.70 (6-63) |
Recurrence | 3 (7.3%) | 2 (6.3%) | 1.000 | 5 (6.8%) |