Shenkin S D, Zhang M G, Der G, Mathur S, Mina T H, Reynolds R M
1Department of Geriatric Medicine,University of Edinburgh,Edinburgh,United Kingdom.
3Medical Student, University of Edinburgh,Edinburgh,United Kingdom.
J Dev Orig Health Dis. 2017 Apr;8(2):137-148. doi: 10.1017/S2040174416000581. Epub 2016 Oct 25.
Low birth weight is associated with adverse health outcomes. If birth weight records are not available, studies may use recalled birth weight. It is unclear whether this is reliable. We performed a systematic review and meta-analysis of studies comparing recalled with recorded birth weights. We followed the Meta-Analyses of Observational Studies in Epidemiology (MOOSE) statement and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched MEDLINE, EMBASE and Cumulative Index to Nursing and Allied Health Literature (CINAHL) to May 2015. We included studies that reported recalled birth weight and recorded birth weight. We excluded studies investigating a clinical population. Two reviewers independently reviewed citations, extracted data, assessed risk of bias. Data were pooled in a random effects meta-analysis for correlation and mean difference. In total, 40 studies were eligible for qualitative synthesis (n=78,997 births from 78,196 parents). Agreement between recalled and recorded birth weight was high: pooled estimate of correlation in 23 samples from 19 studies (n=7406) was 0.90 [95% confidence interval (CI) 0.87-0.93]. The difference between recalled and recorded birth weight in 29 samples from 26 studies (n=29,293) was small [range -86-129 g; random effects estimate 1.4 g (95% CI -4.0-6.9 g)]. Studies were heterogeneous, with no evidence for an effect of time since birth, person reporting, recall bias, or birth order. In post-hoc subgroup analysis, recall was higher than recorded birth weight by 80 g (95% CI 57-103 g) in low and middle income countries. In conclusion, there is high agreement between recalled and recorded birth weight. If birth weight is recalled, it is suitable for use in epidemiological studies, at least in high income countries.
低出生体重与不良健康结局相关。如果没有出生体重记录，研究可能会使用回忆的出生体重。目前尚不清楚这是否可靠。我们对比较回忆出生体重和记录出生体重的研究进行了系统评价和荟萃分析。我们遵循了流行病学观察性研究的荟萃分析（MOOSE）声明和系统评价与荟萃分析的首选报告项目（PRISMA）指南。我们检索了截至2015年5月的MEDLINE、EMBASE和护理及相关健康文献累积索引（CINAHL）。我们纳入了报告回忆出生体重和记录出生体重的研究。我们排除了调查临床人群的研究。两名评价员独立审查文献、提取数据、评估偏倚风险。数据通过随机效应荟萃分析合并以计算相关性和平均差异。总共有40项研究符合定性综合分析的条件（来自78196名父母的78997例出生）。回忆出生体重与记录出生体重之间的一致性很高：来自19项研究的23个样本（n = 7406）的合并相关性估计值为0.90[95%置信区间（CI）0.87 - 0.93]。来自26项研究的29个样本（n = 29293）中回忆出生体重与记录出生体重的差异很小[范围 - 86 - 129 g；随机效应估计值1.4 g（95% CI - 4.0 - 6.9 g）]。研究具有异质性，没有证据表明自出生后的时间、报告者、回忆偏倚或出生顺序有影响。在事后亚组分析中，低收入和中等收入国家回忆的出生体重比记录的出生体重高80 g（95% CI 57 - 103 g）。总之，回忆出生体重与记录出生体重之间具有高度一致性。如果回忆了出生体重，它适用于流行病学研究，至少在高收入国家如此。
