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Editor, I read the present research by Horvath et al. with a great
interest. It is no doubt that the treatment has advantage. However, an
important concern is on the measurement of outcome. As noted, the
measurement of "glucose" is the main determinant. Several factors
interfering the testing result in laboratory should be mentioned. Also,
different analytical technique and analyzer can also give different
results . "Reliability of results produced by trained laboratory
technologists " is a point to be discussed.
1. Horvath K, Koch K, Jeitler K, Matyas E, Bender R, Bastian H, Lange S,
Siebenhofer A. Effects of treatment in women with gestational diabetes
mellitus: systematic review and meta-analysis. BMJ 2010; 340: c1395
2. Carr S, Coustan DR, Martelly P, Brosco F, Rotondo L.
Precision of reflectance meters in screening for gestational diabetes.
Obstet Gynecol. 1989 May;73(5 Pt 1):727-31.
3. Belsey R, Goitein RK, Baer DM. Evaluation of a laboratory system
intended for use in physicians' offices. I. Reliability of results
produced by trained laboratory technologists. JAMA. 1987 Jul 17;258(3):353