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    The effect of white noise on pain levels in newborns: a meta-analysis study
    (Springer London Ltd, 2025) Ozcalkap, Nurten; Cuvadar, Ayse; Yuceturk, Sibel
    BackgroundWhite noise may reduce pain levels in newborns.AimsExamine the effect of white noise on pain levels in newborns.MethodsThe studies included in this meta-analysis were identified through a comprehensive search of databases including Web of Science, PubMed, EBSCO host, Google Scholar, and the National Thesis Center of the Turkish Council of Higher Education. Following an evaluation of the studies, 14 eligible studies were included in the analysis. The quality of the included studies was assessed using the Joanna Briggs Institute (JBI) critical appraisal tools, tailored to each study design. Data synthesis was conducted using Comprehensive Meta-Analysis (CMA) version 2. The findings were structured through a combination of meta-analytic and narrative synthesis approaches.ResultsThis meta-analysis found that the use of white noise during painful procedures significantly reduced pain levels in newborns (SMD: -1.026, 95% CI: -1.443 to -0.610; Z = -4.828, p = 0.000). Subgroup analyses revealed that specific sounds, including those from the Colic album by Orhan Osman (e.g., Colic, Don't Let Your Baby Cry, Don't Let Your Baby Cry Pt-3), as well as intrauterine-like sounds such as hair dryers and vacuum cleaners and recordings of heartbeat sounds, were significantly more effective than other types of white noise.ConclusionsThe findings of this meta-analysis indicate that white noise is an effective intervention strategy for reducing pain levels in newborns. It is recommended that healthcare professionals incorporate white noise, which is a simple, low-cost, effective, and safe non-pharmacological method, into their clinical practice to alleviate neonatal pain.
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    The Effect of Yoga on Anxiety, Depression, and Stress in the Course of Pregnancy Period: A Meta-analysis Study
    (Wolters Kluwer Medknow Publications, 2025) Cuvadar, Ayse; Bas, Yeter Cuvadar; Yuceturk, Sibel; Ozcalkap, Nurten
    This meta-analysis study was conducted to determine the level of effect of yoga applied during the prenatal period on anxiety, depression, and stress. For this study, research was conducted by screening the last 5 years of studies in PubMed, Web of Science, EBSCOhost, Google Scholar, and YOK Thesis Center databases from February to June 2024. After reviewing the studies, seven researches were included in the study. The quality assessment of the studies was conducted using the quality assessment tool prepared according to the Randomized Controlled Trial design by The Joanna Briggs Institute. CMA Ver. 2 was used for data synthesis. The data were synthesized using meta-analysis and narrative synthesis methods. According to the results of the meta-analysis, it has been determined that yoga applied during the prenatal period is effective in reducing anxiety levels (SMD: -0.730, 95% CI: -1.287 to -0.173; Z = -2.567, P = 0.010, I2 = 79.498%). However, it was found that prenatal yoga did not have a statistically significant effect on depression (SMD: -2.137, 95% CI: -4.405-0.132; Z= -1.846, P = 0.065, I2 = 97.722%) and stress levels (SMD: -4.861, 95% CI: -10.861-1.139; Z= -1.588, P = 0.112, I2 = 98.569%). It is observed that yoga applied during the prenatal period is effective in reducing anxiety levels, but not effective in reducing depression and stress levels.