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Use of anti-malarial drugs and the risk of developing eye disorders


Schneider, Cornelia; Adamcova, Miriam; Jick, Susan S; Schlagenhauf, Patricia; Miller, Mary K; Rhein, Hans-Georg; Meier, Christoph R (2014). Use of anti-malarial drugs and the risk of developing eye disorders. Travel Medicine and Infectious Disease, 12(1):40-47.

Abstract

BACKGROUND: Ocular toxicity was described in the late 1950s for some anti-malarial drugs, but only limited information is available on the comparison of ocular toxicity of different anti-malarials.
METHODS: We conducted a follow-up study with a nested case-control analysis using the General Practice Research Database to compare the risk of developing a first-time diagnosis of an eye disorder during exposure of mefloquine, chloroquine and/or proguanil or atovaquone/proguanil use to non-users. We calculated incidence rates with 95% confidence intervals (CI) and odds ratios using multivariate conditional logistic regression analyses.
RESULTS: We included 83,148 patients and identified 652 cases with an incident eye disorder. The incidence rates with 95% CI of all eye disorders combined in users of mefloquine, chloroquine and/or proguanil, atovaquone/proguanil or travellers not using anti-malarials were 5.3 (4.3-6.5), 7.1 (5.0-9.9), 6.3 (5.6-7.2) and 5.1 (4.6-5.7), per 1000 person-years, respectively. As compared to non-users of anti-malarials, the adjusted odds ratio with 95% CI in the nested case-control analysis for users of mefloquine, chloroquine and/or proguanil, or atovaquone/proguanil were 1.33 (1.01-1.75), 1.61 (1.06-2.45), and 1.25 (1.03-1.52), respectively.
CONCLUSIONS: The study provides evidence that there was an increased risk of eye disorders in users of all anti-malarials compared to non-users of anti-malarials.

Abstract

BACKGROUND: Ocular toxicity was described in the late 1950s for some anti-malarial drugs, but only limited information is available on the comparison of ocular toxicity of different anti-malarials.
METHODS: We conducted a follow-up study with a nested case-control analysis using the General Practice Research Database to compare the risk of developing a first-time diagnosis of an eye disorder during exposure of mefloquine, chloroquine and/or proguanil or atovaquone/proguanil use to non-users. We calculated incidence rates with 95% confidence intervals (CI) and odds ratios using multivariate conditional logistic regression analyses.
RESULTS: We included 83,148 patients and identified 652 cases with an incident eye disorder. The incidence rates with 95% CI of all eye disorders combined in users of mefloquine, chloroquine and/or proguanil, atovaquone/proguanil or travellers not using anti-malarials were 5.3 (4.3-6.5), 7.1 (5.0-9.9), 6.3 (5.6-7.2) and 5.1 (4.6-5.7), per 1000 person-years, respectively. As compared to non-users of anti-malarials, the adjusted odds ratio with 95% CI in the nested case-control analysis for users of mefloquine, chloroquine and/or proguanil, or atovaquone/proguanil were 1.33 (1.01-1.75), 1.61 (1.06-2.45), and 1.25 (1.03-1.52), respectively.
CONCLUSIONS: The study provides evidence that there was an increased risk of eye disorders in users of all anti-malarials compared to non-users of anti-malarials.

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2 citations in Web of Science®
4 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2014
Deposited On:22 Jan 2014 08:13
Last Modified:05 Apr 2016 17:24
Publisher:Elsevier
ISSN:1477-8939
Publisher DOI:https://doi.org/10.1016/j.tmaid.2013.07.007
PubMed ID:24035311

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