Yıl: 2002 Cilt: 15 Sayı: 2 Sayfa Aralığı: 92 - 96 Metin Dili: İngilizce İndeks Tarihi: 29-07-2022

Establishment of reference intervals of laboratory tests using hospital patient data

Öz:
Objective: In this study, hospital patient data was used to derive reference intervals for selected clinical laboratory tests. Methods: Data were obtained indirectly using our hospital database including both sexes. No selection criteria have been applied. The data has been partitioned into only three age groups as, 3-20, 21-60 and 61 to older in order to prevent age related grouping in the distribution. The distributions have been checked by normality analysis using Kolmogorov-Smirnov test. Nonparametric percentile estimate method was used to obtain reference intervals in the age groups of 21-60 and 61 to older. In age group 3-20, the number of data were below 120 in most tests so, GraphROC for Windows, a statistical package which performs a robust modified nonparametric method, was used to find reference intervals. Results: Most of the test data did not show Gaussian distribution form and parametric analysis of these data has failed. Instead, nonparametric analysis has succeeded in establishing the intervals in three age groups. Conclusion: The results resembled the characteristics of our hospital patient population. Especially, protein and lipid parameters showed clear differences in our population, compared to the reference values of the manufacturer, which are currently used. This study has been a clear evidence indicating the importance of determination of reference intervals and the analysis of indirectly selected hospital patient data using nonparametric statistical techniques.
Anahtar Kelime: Statistics, Nonparametric Patients Medical Records Laboratory Techniques and Procedures

Konular: Genel ve Dahili Tıp
Belge Türü: Makale Makale Türü: Diğer Erişim Türü: Erişime Açık
  • 1. Benson ES. The concept of normal range. Hum Pathol 1972;3:152-157.
  • 2. Reed H. Influence of statistical method used on the resulting estimate of normal range.Clin Chem 1971,-1 7:275-284.
  • 3. Lumsden JH. On establishing reference values. Can J Comp Med 1978/42:293-301.
  • 4. Young DS. Determination and validation of reference intervals. Arch Pathol Lab Med 1992; 116:704-709.
  • 5. Harris EK, Wong ET. Statistical criteria for separate reference intervals: Race and gender groups in Creatinine Kinase. Clin Chem 1991:37:1580-1582.
  • 6. Massod MF. nonparametric percentile estimate of clinical normal ranges Am J Med Tech 1977;43:243-252.
  • 7. Kouri T, Kairisto V. Reference intervals developed from data for hospitalised patients:Computerised method based on combination of laboratory and diagnostic data. Clin Chem 1994:40:2209-2215.
  • 8. Kairisto V, liânninen K. Generation of reference values for Cardiac enzymes from hospital admission laboratory data. Eur J Clin Chem Clin Biochem 1994:32:789-796
  • 9. NCCLS Document C28-A.1995 Vol 15 No.4
  • 10. Horn PS. A robust approach to reference inerval estimation and evaluation. Clin Chem 1998:44:622-631.
  • 11. Kairisto V, Poola A. Software for illustrative presentation of basic clinical characteristics of laboratory tests: GraphROC for Windows.Scand J Clin Lab Invest Suppl 1995,-222:43-60.
  • 12. Lott JA, Mitchell LC. Estimation of reference ranges: How many subjects are needed? Clin Chem 1992:38:648-650.
  • 13. Dixon WJ. Processing data for outliers. Biometrics 1953:9:74-80.
  • 14. Stephens MA. EOF statistics for goodness-of-fit and some comparisons. J Am Stat Asso 1974:69:730-737.
  • 15. Solberg HE. Satistical treatment of the reference values in laboratory medicine:Testing the goodness-of-fit of an observed distribution to the Gaussian distribution. Scand J Clin Lab Med Suppl 1986,-46:125-132.
  • 16. Collins PP. Determination of normal values from a hospital population. Am J Med Tech 1975:41:25-31.
  • 17. Unsal İ, Enünlü CT. Hasta örneklerinden derlenen veri kullanılarak laboratuvar testleri için, "Sağlıkla ilişkili sınırlar" m saptanması.Biokimya Dergisi 1998: 13: 6-11.
APA TOPRAKÇI M, EMERK K (2002). Establishment of reference intervals of laboratory tests using hospital patient data. , 92 - 96.
Chicago TOPRAKÇI Mustafa,EMERK Kaya Establishment of reference intervals of laboratory tests using hospital patient data. (2002): 92 - 96.
MLA TOPRAKÇI Mustafa,EMERK Kaya Establishment of reference intervals of laboratory tests using hospital patient data. , 2002, ss.92 - 96.
AMA TOPRAKÇI M,EMERK K Establishment of reference intervals of laboratory tests using hospital patient data. . 2002; 92 - 96.
Vancouver TOPRAKÇI M,EMERK K Establishment of reference intervals of laboratory tests using hospital patient data. . 2002; 92 - 96.
IEEE TOPRAKÇI M,EMERK K "Establishment of reference intervals of laboratory tests using hospital patient data." , ss.92 - 96, 2002.
ISNAD TOPRAKÇI, Mustafa - EMERK, Kaya. "Establishment of reference intervals of laboratory tests using hospital patient data". (2002), 92-96.
APA TOPRAKÇI M, EMERK K (2002). Establishment of reference intervals of laboratory tests using hospital patient data. Marmara Medical Journal, 15(2), 92 - 96.
Chicago TOPRAKÇI Mustafa,EMERK Kaya Establishment of reference intervals of laboratory tests using hospital patient data. Marmara Medical Journal 15, no.2 (2002): 92 - 96.
MLA TOPRAKÇI Mustafa,EMERK Kaya Establishment of reference intervals of laboratory tests using hospital patient data. Marmara Medical Journal, vol.15, no.2, 2002, ss.92 - 96.
AMA TOPRAKÇI M,EMERK K Establishment of reference intervals of laboratory tests using hospital patient data. Marmara Medical Journal. 2002; 15(2): 92 - 96.
Vancouver TOPRAKÇI M,EMERK K Establishment of reference intervals of laboratory tests using hospital patient data. Marmara Medical Journal. 2002; 15(2): 92 - 96.
IEEE TOPRAKÇI M,EMERK K "Establishment of reference intervals of laboratory tests using hospital patient data." Marmara Medical Journal, 15, ss.92 - 96, 2002.
ISNAD TOPRAKÇI, Mustafa - EMERK, Kaya. "Establishment of reference intervals of laboratory tests using hospital patient data". Marmara Medical Journal 15/2 (2002), 92-96.