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Background <p>Single-child families represent an expanded phenomenon in recent years due to prevailing socio-economic challenges. The single childbirth phenomenon can potentially cause negative population growth and undesirable effects on families. Thus, this study aimed to determine the prevalence (percent) of single-child families with an emphasis on interfering associated factors.</p> Methods <p>For paper collection, valid databases of PubMed, Embase, ScienceDirect, Web of Science, Scopus, and Google Scholar search engine were systematically searched. All relevant studies were transferred to EndNote software (v.8) for duplicate detection. Primary and secondary screenings were applied and eligible studies enrolled for meta-analysis (CMA v.2). In this regard, the random effect model was employed and the I² index was used for heterogeneity assessment.</p> Results <p>Following the examination of 33 studies, the prevalence (percent) of single-child families was found 41.3% (95% CI:33.1–49.9%). Meta-regression analysis revealed that following the acceleration in sample size and year of paper publication, the prevalence (percent) of single-child family increases and decreases (<i>p</i> &lt; 0.05). Additionally, various influential factors effective on single-child families were listed as income status, financial difficulties, religious beliefs, educational level, and employment status.</p> Conclusion <p>According to the relatively high prevalence (percent) of single-child families and the influential impacts on families and communities, the findings of this study can provide valuable insights for policymakers to design appropriate policies and achieve demographic balance.</p>

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The global prevalence of single-child families with emphasis on influential factors: a comprehensive systematic review and meta-analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月16日

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  • Nader Salari,
  • Pegah Heidarian,
  • Amir Abdolmaleki,
  • Kani Salim,
  • Seyed Hamidreza Hashemian,
  • Alireza Daneshkhah,
  • Masoud Mohammadi

摘要

Background

Single-child families represent an expanded phenomenon in recent years due to prevailing socio-economic challenges. The single childbirth phenomenon can potentially cause negative population growth and undesirable effects on families. Thus, this study aimed to determine the prevalence (percent) of single-child families with an emphasis on interfering associated factors.

Methods

For paper collection, valid databases of PubMed, Embase, ScienceDirect, Web of Science, Scopus, and Google Scholar search engine were systematically searched. All relevant studies were transferred to EndNote software (v.8) for duplicate detection. Primary and secondary screenings were applied and eligible studies enrolled for meta-analysis (CMA v.2). In this regard, the random effect model was employed and the I² index was used for heterogeneity assessment.

Results

Following the examination of 33 studies, the prevalence (percent) of single-child families was found 41.3% (95% CI:33.1–49.9%). Meta-regression analysis revealed that following the acceleration in sample size and year of paper publication, the prevalence (percent) of single-child family increases and decreases (p < 0.05). Additionally, various influential factors effective on single-child families were listed as income status, financial difficulties, religious beliefs, educational level, and employment status.

Conclusion

According to the relatively high prevalence (percent) of single-child families and the influential impacts on families and communities, the findings of this study can provide valuable insights for policymakers to design appropriate policies and achieve demographic balance.