Table 2 The pooled values for background characteristics, symptoms, MRI findings, and laboratories.
Total | A-P-NBD | CP-P-NBD | p, I2 | ||||
---|---|---|---|---|---|---|---|
N, n | Pooled (95% CI), I2 | N, n | Pooled (95% CI), I2 | N, n | Pooled (95% CI), I2 | ||
Background characteristics | |||||||
Male (%) | 7, 260 | 68.6 (58.4 to 78.8)%, 63% | 4, 167 | 63.4 (49.2 to 46.9)%, 66% | 7, 93 | 72.1 (58.1 to 42.4)%, 55% | 0.39, 0% |
Onset of BD (year old) | 5, 254 | 39.0 (35.0 to 43.0)%, 83% | 4, 167 | 39.2 (31.5 to 46.9)%, 92% | 5, 87 | 39.3 (36.2 to 42.4)%, 34% | 0.99, 0% |
Onset of NBD (year old) | 5, 254 | 42.9 (36.3 to 49.6)%, 93% | 4, 167 | 43.1 (26.7 to 59.4)%, 96% | 5, 87 | 43.3 (40.7 to 45.9)%, 0% | 0.98, 0% |
HLA-B51 positive (%) | 4, 193 | 53.0 (35.4 to 70.6)%, 84% | 2, 122 | 46.2 (36.7 to 55.7)%, 17% | 4, 71 | 56.1 (24.8 to 87.4)%, 88% | 0.55, 0% |
Smoking (%) | 1, 102 | 80.0 (58.4 to 100)%, 88% | 1, 68 | 69.0 (58.2 to 79.8)%, NA | 1, 34 | 91.0 (80.2 to 100)%, NA | 0.005, 87.5% |
Cyclosporin use (%) | 1, 27 | 18.3 (0 to 48.8)%, 95% | 1, 26 | 34.0 (23.6 to 44.4)%, NA | 1, 1 | 2.9 (0 to 11.1)%, NA | <0.001, 95.3% |
Symptom | |||||||
Fever (%) | 1, 111 | 29.6 (0 to 82.2)%, 98% | 1, 76 | 56.6 (45.7 to 67.5)%, NA | 1, 35 | 2.9 (0 to 11.2)%, NA% | <0.001, 98.3% |
Headache (%) | 5, 248 | 40.7 (18.5 to 62.9)%, 94% | 3, 164 | 45.1 (20.5 to 69.7)%, 90% | 5, 84 | 38.9 (7.8 to 70.0)%, 92% | 0.76, 0% |
Cranial nerve disorder (%) | 2, 123 | 28.3 (16.2 to 40.5)%, 46% | 2, 81 | 27.3 (17.9 to 36.8)%, 0% | 2, 42 | 36.6 (0 to 76.4)%, 81% | 0.66, 0% |
Confusion (%) | 2, 133 | 8.5 (0.6 to 16.3)%, 35% | 2, 88 | 4.7 (0 to 10.1)%, 0% | 2, 45 | 17.6 (6.3 to 28.8)%, 0% | 0.04, 76% |
Dizziness (%) | 3, 131 | 34.4 (2.4 to 66.4)%, 97% | 2, 86 | 43.9 (0 to 100)%, 97% | 3, 45 | 26.0 (0 to 53.1)%, 80% | 0.62, 0% |
Dementia (%) | 3, 28 | 36.7 (9.8 to 63.7)%, 75% | 2, 13 | 12.6 (0 to 44.3)%, 60% | 3, 15 | 53.4 (34.4 to 72.4)%, 0% | 0.03, 78.6% |
Dysarthria (%) | 1, 111 | 29.8 (6.0 to 53.6)%, 0% | 1, 76 | 18.5 (9.8 to 27.3)%, NA | 1, 35 | 42.9 (27.3 to 58.5)%, NA | 0.008, 85.9% |
Sensory disorder (%) | 3, 135 | 20.8 (8.5 to 33.0)%, 57% | 2, 88 | 13.5 (0 to 37.2)%, 82% | 3, 47 | 27.3 (11.8 to 42.7)%, 26% | 0.34, 0% |
Cerebellar sign (%) | 2, 10 | 81.7 (61.5 to 100)%, 0% | 1, 3 | 66.7 (29.6 to 100)%, NA | 2, 7 | 88.0 (63.9 to 100)%, 0% | 0.34, 0% |
Pyramidal sign (%) | 2, 10 | 92.0 (72.5 to 100)%, 0% | 1, 3 | 100.0 (66.3 to 100)%, NA | 2, 7 | 88.0 (63.9 to 100)%, 0% | 0.57, 0% |
Seizure (%) | 1, 115 | 1.7 (0 to 5.5)%, 0% | 1, 78 | 2.6 (0 to 7.2)%, NA | 1, 37 | 0.0 (0 to 6.5)%, NA | 0.53, 0% |
Hemiparesis (%) | 1, 18 | 4.9 (0 to 19.9)%, 0% | 1, 10 | 10.0 (0 to 31.5)%, NA | 1.8 | 0.0 (0 to 21.0)%, NA | 0.51, 0% |
Sphincter disturbance (%) | 2, 226 | 13.9 (3.5 to 24.4)%, 82% | 2, 154 | 7.9 (0 to 19.1)%, 83% | 2, 72 | 21.6 (12.0 to 31.3)%, 5% | 0.07, 69.8% |
Ataxia (%) | 4, 230 | 38.0 (21.3 to 54.7)%, 87% | 2, 154 | 16.5 (6.7 to 26.2)%, 63% | 4, 76 | 53.3 (32.0 to 74.7)%, 70% | 0.002, 89.5% |
MRI finding | |||||||
Normal (%) | 3, 135 | 31.5 (9.3 to 53.7)%, 91% | 2, 88 | 34.3 (0 to 86.2)%, 95% | 3, 47 | 28.7 (0 to 62.0)%, 85% | 0.86, 0% |
Brain stem any finding (%) | 7, 160 | 62.4 (44.3 to 80.6)%, 84% | 4, 102 | 59.7(28.9 to 90.4)%, 90% | 6, 58 | 64.8 (38.1 to 91.4)%, 82% | 0.81, 0% |
Brain stem atrophy (%) | 4, 32 | 49.1 (13.5 to 84.8)%, 87% | 2, 15 | 11.9 (0 to 29.9)%, 0% | 3, 17 | 76.3 (47.2 to 100)%, 65% | < 0.001, 93% |
Cerebellum (%) | 5, 144 | 26.5 (9.7 to 43.3)%, 90% | 3, 93 | 3.5 (0 to 8.5)%, 0% | 5, 51 | 51.3 (8.7 to 93.8)%, 93% | 0.03, 79.1% |
Thalamus (%) | 3, 33 | 10.5 (0 to 22.4)%, 7% | 2, 12 | 12.8 (0 to 44.6)%, 0% | 3, 21 | 12.6 (0 to 27.7)%, 4% | 0.99, 0% |
White matter (%) | 2, 29 | 22.3 (0 to 47.2)%, 70% | 2, 21 | 15.9 (0 to 48.6)%, 78% | 1, 8 | 37.5 (9.4 to 65.6)%, NA | 0.33, 0% |
Basal ganglia (%) | 3, 127 | 40.5 (15.8 to 65.2)%, 90% | 2, 84 | 48.2 (0 to 98.6)%, 94% | 2, 43 | 35.3 (9.4 to 65.6)%, 91% | 0.72, 0% |
Laboratories | |||||||
CSF cell count (/mm3 | 5, 286 | 78.6 (48.2 to 108.9)%, 98% | 4, 190 | 156.2 (53.8 to 258.7)%, 97% | 5, 96 | 27.2 (0 to 54.4)%, 98% | 0.02, 82.4% |
CSF IL-6 (pg/mL) | 4, 64 | 77.2 (31.8 to 122.5), 97% | 2, 36 | 65.4 (0 to 161.3), 99% | 4, 28 | 95.9 (21.5 to 170.2), 86% | 0.62, 0% |
CSF protein (mg/dL) | 3, 266 | 89.4 (72.1 to 106.8), 99% | 3, 180 | 112.9 (75.4 to 150.4), 99% | 3, 86 | 78.9 (50.8 to 107.0), 99% | 0.16, 50.4% |