1986
DOI: 10.1097/00004356-198605000-00010
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Intervention study for the risk reduction of coronary infarction

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Cited by 2 publications
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“…Nine studies used a quasi-experimental design. Two of these studies used matching by pairs (Perk, Hedbäck, & Engvall, 1990; Stransky, Kälin, Schwarzenbach, & Schär, 1986), four studies used matching by stratified sampling (Dracup et al, 1984; Hedbäck & Perk, 1987; Munro et al, 1988; Salonen, Hämynen, & Heinonen, 1985), and the remaining three studies used a certain time period as a rule for assigning patients to conditions.…”
Section: Resultsmentioning
confidence: 99%
“…Nine studies used a quasi-experimental design. Two of these studies used matching by pairs (Perk, Hedbäck, & Engvall, 1990; Stransky, Kälin, Schwarzenbach, & Schär, 1986), four studies used matching by stratified sampling (Dracup et al, 1984; Hedbäck & Perk, 1987; Munro et al, 1988; Salonen, Hämynen, & Heinonen, 1985), and the remaining three studies used a certain time period as a rule for assigning patients to conditions.…”
Section: Resultsmentioning
confidence: 99%