Dataset Information

Cancer risk in children and young adults born preterm: A systematic review and meta-analysis.

ABSTRACT:

Introduction

Risk of developing a malignancy when born premature is unknown. We hypothesised that risk of certain cancers might be increased in youth born preterm versus term. We therefore performed a systematic review and meta-analysis to evaluate the incidence of malignancy in the context of preterm birth, according to various cancer types.

Methods

The study was designed per MOOSE and PRISMA guidelines. Articles were identified through November 2015. Observational studies exploring the association between childhood malignancy and birth characteristics were included. Of the 1658 records identified, 109 full text articles were evaluated for eligibility. Random effects meta-analyses were conducted on 10/26 studies retained; 95% confidence intervals were computed and adjusted following sensitivity analysis. Publication bias was evaluated using funnel plots, Begg's and Egger's tests.

Results

No differences in risk of primary central nervous system tumor [OR 1.05; 95% CI 0.93-1.17, 5 studies, 580 cases] and neuroblastoma [OR 1.09; 95% CI 0.90-1.32, 5 studies, 211 cases] were observed in individuals born <37 versus ?37 weeks' gestation. Preterm birth was consistently associated with hepatoblastoma [ORs 3.12 (95% CI 2.32-4.20), 1.52 (95% CI 1.1-2.1), 1.82 (95% CI 1.01-3.26), and 2.65 (95% CI 1.98-3.55)], but not leukemia, astrocytoma, ependymoma, medulloblastoma, lymphoma, nephroblastoma, rhabdomyosarcoma, retinoblastoma or thyroid cancer.

Conclusions

Children born premature may be at increased risk for hepatoblastoma but there is no strong evidence of an increased risk of primary central nervous system tumours or neuroblastoma. There is insufficient evidence to conclude whether prematurity modulates the risk of other childhood cancers.

SUBMITTER: Paquette K

PROVIDER: S-EPMC6319724 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Publications

Cancer risk in children and young adults born preterm: A systematic review and meta-analysis.

Paquette Katryn K Coltin Hallie H Boivin Ariane A Amre Devendra D Nuyt Anne-Monique AM Luu Thuy Mai TM

PloS one 20190104 1

<h4>Introduction</h4>Risk of developing a malignancy when born premature is unknown. We hypothesised that risk of certain cancers might be increased in youth born preterm versus term. We therefore performed a systematic review and meta-analysis to evaluate the incidence of malignancy in the context of preterm birth, according to various cancer types.<h4>Methods</h4>The study was designed per MOOSE and PRISMA guidelines. Articles were identified through November 2015. Observational studies explor ...[more]

PMID: 30608983

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Project description:Importance:Children born preterm are at an elevated risk of academic underachievement. However, the extent to which performance across domain-specific subskills in reading and mathematics is associated with preterm birth remains unclear. Objective:To conduct a systematic review and meta-analysis of academic outcomes of school-aged children born preterm, compared with children born at term, appraising evidence for higher- and lower-order subskills in reading and mathematics. Data Sources:PubMed/MEDLINE, PsycINFO, and the Cumulative Index of Nursing and Allied Health Literature electronic databases from January 1, 1980, to July 30, 2018, were searched for population, exposure, and outcome terms such as child (population), preterm birth (exposure), and education* (outcome). Study Selection:Peer-reviewed English-language publications that included preterm-born children and a comparison group of term-born children aged 5 to 18 years and born during or after 1980 and that reported outcomes on standardized assessments from cohort or cross-sectional studies were screened. Of the 9833 articles screened, 33 unique studies met the inclusion criteria. Data Extraction and Synthesis:Data were analyzed from August 1 to September 29, 2018. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed. Two reviewers independently screened the databases and extracted sample characteristics and outcomes scores. Pooled mean differences (MDs) were analyzed using random-effects models. Main Outcomes and Measures:Performance on standardized assessment of higher-order subskills of reading comprehension and applied mathematics problems; lower-order reading subskills of decoding, pseudoword decoding, and word identification; and lower-order mathematics subskills of knowledge, calculation, and fluency. Results:Outcomes data were extracted for 4006 preterm and 3317 term-born children, totaling 7323 participants from 33 unique studies. Relative to children born at term, children born preterm scored significantly lower in reading comprehension (mean difference [MD], -7.96; 95% CI, -12.15 to -3.76; I2?=?81%) and applied mathematical problems (MD, -11.41; 95% CI, -17.57 to -5.26; I2?=?91%) assessments. Across the assessments of lower-order skills, children born preterm scored significantly lower than their term-born peers in calculation (MD, -10.57; 95% CI, -15.62 to -5.52; I2?=?92%), decoding (MD, -10.18; 95% CI, -16.83 to -3.53; I2?=?71%), mathematical knowledge (MD, -9.88; 95% CI, -11.68 to -8.08; I2?=?62%), word identification (MD, -7.44; 95% CI, -9.08 to -5.80; I2?=?69%), and mathematical fluency (MD, -6.89; 95% CI, -13.54 to -0.23; I2?=?72%). The associations remained unchanged after sensitivity analyses for reducing heterogeneity. Conclusions and Relevance:These findings provide evidence that preterm birth is associated with academic underperformance in aggregate measures of reading and mathematics, as well as a variety of related subskills.

Project description:BackgroundSmartphone overuse has been cited as a potentially modifiable risk factor that can result in visual impairment. However, reported associations between smartphone overuse and visual impairment have been inconsistent.ObjectiveThe aim of this systematic review was to determine the association between smartphone overuse and visual impairment, including myopia, blurred vision, and poor vision, in children and young adults.MethodsWe conducted a systematic search in the Cochrane Library, PubMed, EMBASE, Web of Science Core Collection, and ScienceDirect databases since the beginning of the databases up to June 2020. Fourteen eligible studies (10 cross-sectional studies and 4 controlled trials) were identified, which included a total of 27,110 subjects with a mean age ranging from 9.5 to 26.0 years. We used a random-effects model for meta-analysis of the 10 cross-sectional studies (26,962 subjects) and a fixed-effects model for meta-analysis of the 4 controlled trials (148 subjects) to combine odds ratios (ORs) and effect sizes (ES). The I2 statistic was used to assess heterogeneity.ResultsA pooled OR of 1.05 (95% CI 0.98-1.13, P=.16) was obtained from the cross-sectional studies, suggesting that smartphone overuse is not significantly associated with myopia, poor vision, or blurred vision; however, these visual impairments together were more apparent in children (OR 1.06, 95% CI 0.99-1.14, P=.09) than in young adults (OR 0.91, 95% CI 0.57-1.46,P=.71). For the 4 controlled trials, the smartphone overuse groups showed worse visual function scores compared with the reduced-use groups. The pooled ES was 0.76 (95% CI 0.53-0.99), which was statistically significant (P<.001).ConclusionsLonger smartphone use may increase the likelihood of ocular symptoms, including myopia, asthenopia, and ocular surface disease, especially in children. Thus, regulating use time and restricting the prolonged use of smartphones may prevent ocular and visual symptoms. Further research on the patterns of use, with longer follow up on the longitudinal associations, will help to inform detailed guidelines and recommendations for smartphone use in children and young adults.

Dataset Information

Cancer risk in children and young adults born preterm: A systematic review and meta-analysis.

Introduction

Methods

Results

Conclusions

Publications

Cancer risk in children and young adults born preterm: A systematic review and meta-analysis.

Similar Datasets

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