Table 5 Comparison of the percentage of studies complying with PRISMA-A items before and after the publication of the checklist. Mann-Whitney U test *p < 0.05; **p < 0.01
Total (N = 265) | 2002–2013 (N = 101) | 2014–2020 (N = 165) | |||||
|---|---|---|---|---|---|---|---|
Item | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | p-value |
Title | 93.23 | 90.33–96.13 | 91.58 | 85.79–96.68 | 94.24 | 90.63–97.63 | 0.346 |
Objectives | 84.96 | 81.73–88.20 | 85.64 | 80.33–90.80 | 84.55 | 80.30–88.82 | 0,827 |
Eligibility criteria | 63.53 | 58.50–68.57 | 65.84 | 56.81–74.11 | 62.12 | 55.69–68.37 | 0.368 |
Information sources | 62.22 | 57.22–67.20 | 58.42 | 49.80–66.68 | 64.55 | 58.17–70.84 | 0.23 |
Risk of bias | 16.17 | 12.03–20.29 | 13.86 | 8.09–20.76 | 17.58 | 12.25–23.54 | 0.596 |
Included studies | 69.43 | 65.58–73.28 | 62.00 | 55.70–69.04 | 73.94 | 69.09–78.43 | 0.004** |
Synthesis of results | 76.88 | 72.88–80.87 | 70.79 | 62.73–77.47 | 80.61 | 76.11–85.61 | 0.025* |
Description of the effect | 77.07 | 72.93–81.19 | 76.73 | 69.93–82.64 | 77.27 | 71.55–82.77 | 0.472 |
Strengths and limitations of the evidence | 32.52 | 27.48–37.55 | 30.20 | 21.84–37.95 | 33.94 | 27.01–40.27 | 0.561 |
Interpretation | 93.05 | 90.58–95.50 | 92.08 | 87.22–96.27 | 93.64 | 90.86–96.79 | 0.614 |
Funding and conflict of interest | 0 | – | 0 | – | 0 | – | 1 |
Registration | 0.38 | 0.00–1.12 | 0 | – | 0.61 | 0.00–1.83 | 0.434 |
Total PRISMA-A score | 55.72 | 54.46–56.97 | 53.78 | 51.56–55.99 | 56.88 | 55.39–58.44 | 0.012* |