The effects of mobile phone use on academic performance: A meta-analysis

The incidence of adult primary brain tumors is increasing in some European countries. High-dose ionizing irradiation, rare genetic syndromes, and genetic predisposition in 5 % of families are a few established environmental risk factors for brain tumor. Mobile phone use that causes near brain exposure to radiofrequency electromagnetic waves and thus creates risks of CNS tumors has been the focus of many studies. Nine meta-analyses were available on this subject. The Interphone multi-center case-control study is the largest one to date; it included 2.708 glioma and 2.409 meningioma cases and matched controls in 13 countries. Studies exploring metals (cadmium, lead), pesticides, outdoor pollution, virus, and risk of glioma created by exposure to them were reviewed. Interphone study did not show increased risk of glioma or meningioma in mobile-phone users. One recent meta-analysis in 2017 found that prolonged exposure i.e.,> 10 years of all phone types was associated with increased risk of ipsilateral CNS tumor locations. In another meta-analysis, long-term use of mobile-phones was found to be a risk factor for low-grade glioma. In case of all durations regarding mobile phone use and both sides of the head, the results of pooling data were more discordant. A large prospective study in 2014 showed that long term use vs never use increased risks of acoustic neurinoma (10+ years: RR = 2.46, 95 % CI = 1.07–5.64, P = 0.03), but not of glioma or meningioma. Studies of other risk factors showed no/weak/contradictory association with brain tumor risk. In the absence of robust and consistent evidence, a causal relation between radiofrequency exposure and CNS tumors was not found. Large prospective studies of this kind regarding a disease with low incidence require a high number of participants and a long follow-up period.

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Mobile Phone Use and Risk of Tumors: A Meta-Analysis

Journal of Clinical Oncology ◽

10.1200/jco.2008.21.6366 ◽

2009 ◽

Vol 27 (33) ◽

pp. 5565-5572 ◽

Cited By ~ 72

Author(s):

Seung-Kwon Myung ◽

Woong Ju ◽

Diana D. McDonnell ◽

Yeon Ji Lee ◽

Gene Kazinets ◽

...

Keyword(s):

Mobile Phone ◽

Random Effects ◽

Odds Ratio ◽

Meta Analysis ◽

Case Control ◽

Cochrane Library ◽

Case Control Studies ◽

Mobile Phone Use ◽

Methodologic Quality

Purpose Case-control studies have reported inconsistent findings regarding the association between mobile phone use and tumor risk. We investigated these associations using a meta-analysis. Methods We searched MEDLINE (PubMed), EMBASE, and the Cochrane Library in August 2008. Two evaluators independently reviewed and selected articles based on predetermined selection criteria. Results Of 465 articles meeting our initial criteria, 23 case-control studies, which involved 37,916 participants (12,344 patient cases and 25,572 controls), were included in the final analyses. Compared with never or rarely having used a mobile phone, the odds ratio for overall use was 0.98 for malignant and benign tumors (95% CI, 0.89 to 1.07) in a random-effects meta-analysis of all 23 studies. However, a significant positive association (harmful effect) was observed in a random-effects meta-analysis of eight studies using blinding, whereas a significant negative association (protective effect) was observed in a fixed-effects meta-analysis of 15 studies not using blinding. Mobile phone use of 10 years or longer was associated with a risk of tumors in 13 studies reporting this association (odds ratio = 1.18; 95% CI, 1.04 to 1.34). Further, these findings were also observed in the subgroup analyses by methodologic quality of study. Blinding and methodologic quality of study were strongly associated with the research group. Conclusion The current study found that there is possible evidence linking mobile phone use to an increased risk of tumors from a meta-analysis of low-biased case-control studies. Prospective cohort studies providing a higher level of evidence are needed.

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A Meta-Analysis of Mobile Phone Use and Presence

Human Communication & Technology ◽

10.17161/hct.v1i2.13412 ◽

2020 ◽

Vol 1 (2) ◽

pp. 20-35

Author(s):

John Courtright ◽

SCOTT CAPLAN

Keyword(s):

Mobile Phone ◽

Mobile Phones ◽

Meta Analysis ◽

Empirical Studies ◽

Interpersonal Interactions ◽

Theoretical Interest ◽

Mobile Phone Use ◽

Negative Perceptions ◽

Mere Presence ◽

Meta Analyses

This research reports the results of two meta-analyses on 43 empirical studies that have investigated the effects of the presence and use of mobile phones during interpersonal interactions. Six of these investigations focused on the “mere presence effect,” which asserts that the presence (but not use) of a mobile phone leads to more negative perceptions of one’s interactional partner. The meta-analysis did not provide support for this effect. Thirty-seven studies focused on the effects of “phone snubbing” (“phubbing”) which addresses the use of a mobile phone during interactions. This second meta-analysis found a relatively robust effect which clearly leads to more negative perceptions by the non-using partner. Although numerous potential moderators were examined, none of theoretical interest were found to moderate these effects.

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Mobile phone use and glioma risk: A systematic review and meta-analysis

PLoS ONE ◽

10.1371/journal.pone.0175136 ◽

2017 ◽

Vol 12 (5) ◽

pp. e0175136 ◽

Cited By ~ 28

Author(s):

Ming Yang ◽

WenWen Guo ◽

ChunSheng Yang ◽

JianQin Tang ◽

Qian Huang ◽

...

Keyword(s):

Systematic Review ◽

Mobile Phone ◽

Meta Analysis ◽

Mobile Phone Use ◽

Glioma Risk

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Mobile Phone Use and The Risk of Headache: A Systematic Review and Meta-analysis of Cross-sectional Studies

Scientific Reports ◽

10.1038/s41598-017-12802-9 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 12

Author(s):

Jing Wang ◽

Hui Su ◽

Wei Xie ◽

Shengyuan Yu

Keyword(s):

Systematic Review ◽

Mobile Phone ◽

Meta Analysis ◽

Cross Sectional ◽

Mobile Phone Use ◽

Cross Sectional Studies

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Comment on Choi, Y.-J., et al. Cellular Phone Use and Risk of Tumors: Systematic Review and Meta-Analysis. Int. J. Environ. Res. Public Health 2020, 17, 8079

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18063125 ◽

2021 ◽

Vol 18 (6) ◽

pp. 3125

Author(s):

Frank de Vocht ◽

Martin Röösli

Keyword(s):

Public Health ◽

Systematic Review ◽

Mobile Phone ◽

Meta Analysis ◽

Cellular Phone ◽

Case Control ◽

Case Control Studies ◽

Mobile Phone Use

We welcome the updated systematic review and meta-analysis of case-control studies of mobile phone use and cancer by Choi et al [...]

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Mobile phones affect multiple sperm quality traits: a meta-analysis

F1000Research ◽

10.12688/f1000research.2-40.v1 ◽

2013 ◽

Vol 2 ◽

pp. 40 ◽

Cited By ~ 5

Author(s):

Madhukar Shivajirao Dama ◽

M Narayana Bhat

Keyword(s):

Mobile Phone ◽

Sperm Motility ◽

Sperm Quality ◽

Meta Analysis ◽

Sperm Concentration ◽

Reproductive Age ◽

Quality Traits ◽

Motile Sperm ◽

Mobile Phone Use ◽

Mobile Phone Radiation

As mobile phone usage is growing rapidly, there is a need for a comprehensive analysis of the literature to inform scientific debates about the adverse effects of mobile phone radiation on sperm quality traits. Therefore, we conducted a meta-analysis of the eligible published research studies on human males of reproductive age. Eleven studies were eligible for this analysis. Based on the meta-analysis, mobile phone use was significantly associated with deterioration in semen quality (Hedges’s g = -0.547; 95% CI: -0.713, -0.382; p < 0.001). The traits particularly affected adversely were sperm concentration, sperm morphology, sperm motility, proportion of non-progressive motile sperm (%), proportion of slow progressive motile sperm (%), and sperm viability. Direct exposure of spermatozoa to mobile phone radiation with in vitro study designs also significantly deteriorated the sperm quality (Hedges’s g = -2.233; 95% CI: -2.758, -1.708; p < 0.001), by reducing straight line velocity, fast progressive motility, Hypo-osmotic swelling (HOS) test score, major axis (µm), minor axis (µm), total sperm motility, perimeter (µm), area (µm2), average path velocity, curvilinear velocity, motile spermatozoa, and acrosome reacted spermatozoa (%). The strength of evidence for the different outcomes varied from very low to very high. The analysis shows that mobile phone use is possibly associated with a number of deleterious effects on the spermatozoa.

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