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  • 2005-2009  (1)
  • 1955-1959  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    How much variation in CS rates can be explained by case mix differences? (2005)
    Oxford, UK and Malden, USA : Blackwell Science Ltd
    BJOG 112 (2005), S. 0 
    Details
    ISSN: 1471-0528
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Objective  To quantify the amount of variation in caesarean section (CS) rates between maternity units explained by case mix differences.Design  Cross-sectional study.Setting  All 216 maternity units in England and Wales.Population  Women giving birth at these maternity units between May and July 2000.Methods  Logistic regression models were developed to investigate the relationship between case mix characteristics, and odds of (i) CS before labour, (ii) CS in labour. Using these results, overall CS rates standardised for case mix were calculated for each maternity unit. Random-effects meta-analysis was used to examine heterogeneity between maternity units.Main outcome measures  CS before labour and CS during labour.Results  Adjustment for case mix differences between maternity units explained 34% of the variance in CS rates. Odds of CS (before and in labour) increased with maternal age. Women from ethnic minority groups had lower odds of CS before labour, and increased odds of CS in labour. Women with a previous vaginal delivery had lower odds of CS, although the magnitude of this for CS before and in labour is markedly different.Conclusions  Case mix adjustment is important to enable understanding of the factors that influence the CS rate. These include organisational and staffing levels as well as women's preferences for childbirth and clinician's attitudes. An understanding of how these factors influence the CS rate is essential for evaluation of quality and appropriateness of obstetric care provided to women.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1471-0528.2005.00501.x
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  • 2
    Digitale Medien
    Digitale Medien
    Source and General Properties of Humic Acids from Lignitic Materials. (1959)
    s.l. : American Chemical Society
    Journal of chemical & engineering data 4 (1959), S. 173-176 
    Details
    ISSN: 1520-5134
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/je60002a018
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  • 3
    Digitale Medien
    Digitale Medien
    Hydrogenating Shale Oil to Catalytic Reforming Stock (1957)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 49 (1957), S. 679-684 
    Details
    ISSN: 1520-5045
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ie50568a031
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