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ENVIRONMENTAL HEALTH PERSPECTIVES, 2006

Source of Funding and Results of Studies of Health Effects of Mobile Phone Use: Systematic Review of Experimental Studies.

Recent systematic reviews of the influence of financial interests in medical research concluded that there is a strong association between industry sponsorship and pro-industry conclusions. "We found that the studies exclusively funded by industry were indeed substantially less likely to report statistically significant effects on a range of endpoints that may be relevant to health.""Our findings add to the existing evidence that single source sponsorship is associated with outcomes that favour the sponsors’ products"

Martes 26 de septiembre de 2006 · 1202 lecturas



Abstract

Objectives: There is concern regarding the possible health effects of cellular phone

use. We examined whether the source of funding of studies of the effects of low-level

radiofrequency radiation is associated with the results of studies. We conducted a

systematic review of studies of controlled exposure to radiofrequency radiation with

health related outcomes (electroencephalogram, cognitive or cardiovascular function,

hormone levels, symptoms and subjective wellbeing).

Data sources: We searched Embase, Medline and a specialist database in February

2005 and scrutinised reference lists from relevant publications.

Data extraction: Data on the source of funding, study design, methodological quality

and other study characteristics were extracted. The primary outcome was the

reporting of at least one statistically significant association between the exposure and

a health related outcome. Data were analysed using logistic regression models.

Data synthesis: Of 59 studies, 12 (20%) were exclusively funded by the

telecommunications industry, 11 (19%) were funded by public agencies or charities,

14 (24%) had mixed funding (including industry) and in 22 (37%) the source of

funding was not reported. Studies exclusively funded by industry reported the largest

number of outcomes but were least likely to report a statistically significant result: the

odds ratio was 0.11 (95% confidence interval 0.02 to 0.78), compared to studies

funded by public agencies or charities. This finding was not materially altered in

analyses adjusted for the number of outcomes reported, study quality and other

factors.

Conclusions: The interpretation of results from studies of health effects of

radiofrequency radiation should take sponsorship into account.

ENVIRONMENTAL HEALTH PERSPECTIVES, 2006

Source of Funding and Results of Studies of Health Effects of Mobile Phone Use: Systematic Review of Experimental Studies.

Recent systematic reviews of the influence of financial interests in medical research concluded that there is a strong association between industry sponsorship and pro-industry conclusions. "We found that the studies exclusively funded by industry were indeed substantially less likely to report statistically significant effects on a range of endpoints that may be relevant to health."
"Our findings add to the existing evidence that single source sponsorship is associated with outcomes that favour the sponsors’ products"

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