BACKGROUND Diagnosis of anemia is challenging in resource-poor settings due to inadequate laboratory resources. This study assessed the validity of the Tallquist haemoglobinometer in assessing anemia among pregnant women in Osogbo, Southwestern Nigeria. METHODS This was a cross - sectional study, in which 200 pregnant women of reproductive age were selected using multistage sapling method. A ...

AIMS AND OBJECTIVES The purpose of this study is to compare five commonly used malnutrition screening tools against an acknowledged definition of malnutrition in one hospital inpatient sample. BACKGROUND Early identification and intervention of malnutrition in hospital patients may prevent later complications. Several screening tools have reported their diagnostic accuracy, but the criterion ...

Test bias, in contrast to test fairness, is best conceptualized in validity terms amenable to statistical analysis. Evidence of predictive validity may be most salient in many situations. Evaluation of predictive bias is generally operationalized via linear regression. Potthoff (1978) provided an efficient and parsimonious regression bias procedure that allows both simultaneous and separate tes...

This article demonstrates a method for evaluating the predictive validity of nursing home pre-admission screens (PAS) by using measures of predictive validity adapted from the field of epidemiology. Our approach estimates how well as PAS performs in identifying the "who but for" population of the Medicaid home and community-based services waiver programs for the frail elderly. The methodology's...