Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation.

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Standard

Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation. / Modvig, J; Schmidt, L; Damsgaard, M T.

I: American Journal of Epidemiology, Bind 132, Nr. 6, 1990, s. 1021-38.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Modvig, J, Schmidt, L & Damsgaard, MT 1990, 'Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation.', American Journal of Epidemiology, bind 132, nr. 6, s. 1021-38.

APA

Modvig, J., Schmidt, L., & Damsgaard, M. T. (1990). Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation. American Journal of Epidemiology, 132(6), 1021-38.

Vancouver

Modvig J, Schmidt L, Damsgaard MT. Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation. American Journal of Epidemiology. 1990;132(6):1021-38.

Author

Modvig, J ; Schmidt, L ; Damsgaard, M T. / Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation. I: American Journal of Epidemiology. 1990 ; Bind 132, Nr. 6. s. 1021-38.

Bibtex

@article{b3fe0de0429311ddb7b4000ea68e967b,
title = "Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation.",
abstract = "The concepts, methods, and problems of measuring spontaneous abortion risk are reviewed. The problems touched on include the process of pregnancy verification, the changes in risk by gestational age and maternal age, and the presence of induced abortions. Methods used in studies of spontaneous abortion risk include biochemical assays as well as life table technique, although the latter appears in two different forms. The consequences of using either of these are discussed. It is concluded that no study design so far is appropriate for measuring the total risk of spontaneous abortion from early conception to the end of the 27th week. It is proposed that pregnancy may be considered to consist of two or three specific periods and that different study designs should concentrate on measuring the conditional risk within each period. A careful estimate using this principle leads to an estimate of total risk of spontaneous abortion of 0.33.",
author = "J Modvig and L Schmidt and Damsgaard, {M T}",
note = "Keywords: Abortion, Induced; Abortion, Spontaneous; Adult; Female; Gestational Age; Humans; Maternal Age; Models, Statistical; Pregnancy; Risk Factors",
year = "1990",
language = "English",
volume = "132",
pages = "1021--38",
journal = "American Journal of Epidemiology",
issn = "0002-9262",
publisher = "Oxford University Press",
number = "6",

}

RIS

TY - JOUR

T1 - Measurement of total risk of spontaneous abortion: the virtue of conditional risk estimation.

AU - Modvig, J

AU - Schmidt, L

AU - Damsgaard, M T

N1 - Keywords: Abortion, Induced; Abortion, Spontaneous; Adult; Female; Gestational Age; Humans; Maternal Age; Models, Statistical; Pregnancy; Risk Factors

PY - 1990

Y1 - 1990

N2 - The concepts, methods, and problems of measuring spontaneous abortion risk are reviewed. The problems touched on include the process of pregnancy verification, the changes in risk by gestational age and maternal age, and the presence of induced abortions. Methods used in studies of spontaneous abortion risk include biochemical assays as well as life table technique, although the latter appears in two different forms. The consequences of using either of these are discussed. It is concluded that no study design so far is appropriate for measuring the total risk of spontaneous abortion from early conception to the end of the 27th week. It is proposed that pregnancy may be considered to consist of two or three specific periods and that different study designs should concentrate on measuring the conditional risk within each period. A careful estimate using this principle leads to an estimate of total risk of spontaneous abortion of 0.33.

AB - The concepts, methods, and problems of measuring spontaneous abortion risk are reviewed. The problems touched on include the process of pregnancy verification, the changes in risk by gestational age and maternal age, and the presence of induced abortions. Methods used in studies of spontaneous abortion risk include biochemical assays as well as life table technique, although the latter appears in two different forms. The consequences of using either of these are discussed. It is concluded that no study design so far is appropriate for measuring the total risk of spontaneous abortion from early conception to the end of the 27th week. It is proposed that pregnancy may be considered to consist of two or three specific periods and that different study designs should concentrate on measuring the conditional risk within each period. A careful estimate using this principle leads to an estimate of total risk of spontaneous abortion of 0.33.

M3 - Journal article

C2 - 2260534

VL - 132

SP - 1021

EP - 1038

JO - American Journal of Epidemiology

JF - American Journal of Epidemiology

SN - 0002-9262

IS - 6

ER -

ID: 4748009