94 Chapter 4 Model Study name Outcome Time point Statistics for each study Hedges's g and 95% CI Hedges's Standard Lower Upper g error Variance limit limit Z-Value p-Value Villalba 2020 HAMA 6 months 0,434 0,332 0,111 -0,218 1,085 1,305 0,192 Liu 2020 HAMA 24 months 0,959 0,224 0,050 0,520 1,398 4,282 0,000 Oudijn 2021 HAMA 12 months 1,525 0,650 0,423 0,250 2,800 2,345 0,019 Fixed 0,850 0,179 0,032 0,500 1,200 4,760 0,000 Random 0,846 0,239 0,057 0,379 1,314 3,547 0,000 -2,00 -1,00 0,00 1,00 2,00 Before DBS After DBS Meta Analysis Supplementary figure 6. Forrest plot showing meta-analysis effects of DBS on symptoms of anxiety Supplementary figure 7. Forrest plot showing meta-analysis effects of DBS on quality of life
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