Résumé :
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[BDSP. Notice produite par INIST 7LMnsR0x. Diffusion soumise à autorisation]. Context. - Study design and statistical analyses have improved in journals published in Western countries, but the type of research designs and statistical methods used in medical journals outside Western countries has not been assessed. Objectives. - To determine the frequency of research designs and statistical techniques used in Chinese medical journals, types of statistical errors present, and trends over a 10-year period. Design. - Evaluation of all original articles published in 5 leading journals in 1985 (N=640) and in 1995 (N=954). Main Outcome Measures. Research designs and statistical methods. Results. - Compared with 1985, significant improvement was seen in 1995 ; the percentages of original articles reporting clinical trials, prospective studies, or basic science research increased from 18% to 31% (P<. the proportion of papers using statistical tests increased from to more sophisticated methods were used and those articles statistics appropriate in both years most commonly t contingency tables. common errors presentation pvalues without specifying test use multiple instead analysis variance unpaired when paired required.>
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