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| Subgroup analysis | Study | Participants | Statistical method | Effect estimate |
| ADL score at 6 months: INO vs control | Taylor 2004 | 368 | Mean difference (IV, fixed, 95% CI) | ‐1.00 [‐5.09, 3.09] |
| ADL score at 12 months: INO vs control | Taylor 2004 | 368 | Mean difference (IV, fixed, 95% CI) | ‐2.00 [‐5.07, 1.07] |
ADL = activity of daily living
