Review Article
Safety of Human Papillomavirus 9-Valent Vaccine: A Meta-Analysis of Randomized Trials
Table 1
Description of the characteristics of included studies.
| | Author, year | Country | Design of study | Jadad | Follow-up | Age range (y) | Sample size |
| | Joura et al., 2015 | Asia-Pacific, Europe, Latin America, and North America | RCT | 5 | 7 months | 16–26 | 14,215 | | Vesikari et al., 2015 | Belgium, Denmark, Finland, Italy, Spain, and Sweden | RCT | 5 | 7 months | 9–15 | 600 | | Moreira et al., 2016 | Africa, Asia-Pacific, Europe, Latin America, and North America | RCT | 5 | 7 months | 9–26 | 12,650 |
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RCT: randomized controlled trial.
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