A randomized, blinded, controlled trial investigating the gastrointestinal health effects of drinking water quality.
نویسندگان
چکیده
منابع مشابه
A randomized, blinded, controlled trial investigating the gastrointestinal health effects of drinking water quality.
A double-blinded, randomized, controlled trial was carried out in in Melbourne, Australia, to determine the contribution of drinking water to gastroenteritis. Melbourne is one of the few major cities in the world that draws drinking water from a protected forest catchment with minimal water treatment (chlorination only). Six hundred families were randomly allocated to receive either real or sha...
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Trials have provided conflicting estimates of the risk of gastrointestinal illness attributable to tap water. To estimate this risk in an Iowa community with a well-run water utility with microbiologically challenged source water, the authors of this 2000-2002 study randomly assigned blinded volunteers to use externally identical devices (active device: 227 households with 646 persons; sham dev...
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متن کاملParticipant Blinding and Gastrointestinal Illness in a Randomized, Controlled Trial of an In-Home Drinking Water Intervention
We conducted a randomized, triple-blinded home drinking water intervention trial to determine if a large study could be undertaken while successfully blinding participants. Households were randomized 50:50 to use externally identical active or sham treatment devices. We measured the effectiveness of blinding of participants by using a published blinding index in which values >0.5 indicate succe...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2001
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.01109773