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Functional status outcome (NA not available)
| Outcome | Studies | No. of patients (O/N) | MD (95 % CI) | P for MD | I2 | P for heterogeneity |
|---|---|---|---|---|---|---|
| ASES score at 6 mo | 1 | 23/25 | 0.10 (−3.66, 3.86) | 0.96 | NA | NA |
| ASES score at 12 mo | 1 | 23/25 | −0.70 (−4.52, 3.12) | 0.72 | NA | NA |
| OSS | 1 | 114/117 | 0.75 (−1.45, 2.95) | 0.50 | NA | NA |
| SF-12 physical component score | 1 | 111/115 | 2.00 (−1.00, 5.00) | 0.19 | NA | NA |
| SF-12 mental component score | 1 | 111/115 | −1.00 (−3.87, 1.87) | 0.49 | NA | NA |
