Estimation of Odds Ratios from Matched Case-Control Studies with Incomplete Data

1991 ◽  
Vol 33 (6) ◽  
pp. 673-682 ◽  
Author(s):  
M. Haber ◽  
C. C.-H. Chen
Keyword(s):  
Incomplete Data ◽  
Case Control ◽  
Odds Ratios ◽  
Case Control Studies ◽  
Matched Case

scholarly journals Types of Carbohydrates Intake during Pregnancy and Frequency of a Small for Gestational Age Newborn: A Case-Control Study

Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 523 ◽  
Author(s):  
Carmen Amezcua-Prieto ◽  
Juan Martínez-Galiano ◽  
Naomi Cano-Ibáñez ◽  
Rocío Olmedo-Requena ◽  
Aurora Bueno-Cavanillas ◽  
...  
Keyword(s):  
Gestational Age ◽  
Small For Gestational Age ◽  
Conditional Logistic Regression ◽  
Case Control ◽  
Inverse Association ◽  
Odds Ratios ◽  
Case Control Studies ◽  
Logistic Regression Models ◽  
Matched Case ◽  
Brown Bread

The objective of this study was to assess the relationship between consumption of different types of carbohydrates (CHO) during pregnancy and the risk of having a small for gestational age (SGA) newborn. A retrospective matched case–control design was carried out with a total of 518 mother-offspring pairs. A total of 137 validated items were included in the food frequency questionnaire (FFQ). Conditional logistic regression models were used to calculate crude odds ratios (cORs) and adjusted odds ratios (aORs) with 95% confidence intervals (CIs). Having more than 75 g/day of brown bread showed an inverse association with SGA (aOR = 0.64, CI 0.43–0.96). In contrast, an intake of industrial sweets more than once a day (aOR = 2.70, CI 1.42–5.13), or even 2–6 times a week (aOR = 1.84, CI 1.20–2.82), increased the odds of having a SGA newborn. During pregnancy, the higher the increase of wholegrain cereal and bread, the lower the possibility of having a SGA newborn, but the opposite occurred with refined sugar products—just consuming industrial bakery products or pastries twice a week increased the odds of having an SGA infant. Case–control studies cannot verify causality and only show associations, which may reflect residual confusion due to the presence of unknown factors. It is possible that a high consumption of sugary foods is a marker of a generally poor lifestyle.

scholarly journals Role of Matching in Case-Control Studies of Antimicrobial Resistance

2009 ◽  
Vol 30 (5) ◽  
pp. 480-483 ◽  
Author(s):  
Elizabeth Cerceo ◽  
Ebbing Lautenbach ◽  
Darren R. Linkin ◽  
Warren B. Bilker ◽  
Ingi Lee
Keyword(s):  
Antimicrobial Resistance ◽  
Case Control ◽  
Case Control Studies ◽  
Matched Case

Of 57 case-control studies of antimicrobial resistance, matching was used in 23 (40%). Matched variables differed substantially across studies. Of these 23 matched case-control studies, 12 (52%) justified the use of matching, and 9 (39%) noted the strengths or limitations of this approach. Analysis that accounted for matching was performed in only 52% of the case-control studies.

Tests of Effect in 1: J Matched Case-Control Studies Based on a Modified Likelihood Approach

Biometrika ◽  
1990 ◽  
Vol 77 (4) ◽  
pp. 897
Author(s):  
Bryan Langholz ◽  
Duncan Thomas ◽  
Tsunjen Chen ◽  
Phillip Rhodes
Keyword(s):  
Case Control ◽  
Case Control Studies ◽  
Matched Case ◽  
Likelihood Approach ◽  
Modified Likelihood
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