This problem is addressed in PRISMA 2009, PRISMA 2020 and MECIR. Systematic reviews may limit reporting of adverse events to the most common, most serious, determined to be caused by the intervention etc. But in this process the full safety profile is often not available in the final report of a systematic review.
Articles that support this problem:
More than one-third of systematic reviews did not fully report the adverse events outcome
2019 : Journal of clinical epidemiology
Reporting of adverse events in systematic reviews can be improved: survey results
2008 : Journal of clinical epidemiology
Availability of large-scale evidence on specific harms from systematic reviews of randomized trials
2004 : The american journal of medicine
The reporting of safety among drug systematic reviews was poor before the implementation of the PRISMA harms checklist
2019 : Journal of clinical epidemiology
Selective reporting bias of harm outcomes within studies: findings from a cohort of systematic reviews
2014 : Bmj
Methodological quality of meta-analyses on treatments for chronic obstructive pulmonary disease: a cross-sectional study using the AMSTAR (Assessing the Methodological Quality of Systematic Reviews) tool
2015 : Npj primary care respiratory medicine
Quality of reporting in systematic reviews of adverse events: systematic review
2014 : Bmj : british medical journal
Side effects are incompletely reported among systematic reviews in gastroenterology
2015 : Journal of clinical epidemiology
The Cochrane HPV vaccine review was incomplete and ignored important evidence of bias
2018 : Bmj evidence-based medicine
A systematic survey showed important limitations in the methods for assessing drug safety among systematic reviews
2020 : Journal of clinical epidemiology
Challenges in systematic reviews that assess treatment harms
2005 : Annals of internal medicine
Assessing the Reporting of Harms in Systematic Reviews Focused on the Therapeutic and Cosmetic Uses of Botulinum Toxin
2023 : Clinical drug investigation
Systematic reviews on the success of dental implants present low spin of information but may be better reported and interpreted: An overview of systematic reviews with meta-analysis
2022 : Clinical implant dentistry & related research
A cross-sectional analysis of harms reporting in systematic reviews evaluating laminectomy
2023 : North american spine society journal
Harms reporting by systematic reviews for functional endoscopic sinus surgery: a cross-sectional analysis
2023 : European archives of oto-rhino-laryngology
Harms Reporting Is Inadequate in Systematic Reviews Regarding Hip Arthroscopy
2023 : Arthroscopy, sports medicine, and rehabilitation
An analysis of harms reporting in systematic reviews regarding ketorolac for management of perioperative pain
2022 : British journal of anaesthesia
Assessing the Reporting and Frequency of Harms in Systematic Reviews Focused on Minimally Invasive Hysterectomies: A Cross-sectional Analysis
2023 : Journal of minimally invasive gynecology
Exercise across the Lung Cancer Care Continuum: An Overview of Systematic Reviews
2023 : Journal of clinical medicine