Figures & data
Figure 1 PRISMA flow chart.
Abbreviations: N/A, not applicable; NHS EED, National Health Service Economic Evaluation Database; PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses.
![Figure 1 PRISMA flow chart.](/cms/asset/ab1c7cb8-e4d7-4519-be22-9cd768c24ac9/dceo_a_78752_f0001_c.jpg)
Table 1 Methodological characteristics of publications included in the analysis