Sentences with phrase «potential biases associated»

The use of well - established, standardised and validated instruments, suitable for administration by interviewers, to assess child development also ameliorated potential biases associated with negative maternal affect.

To control for the potential bias associated with the higher yields obtained with more recent blood culture methods, several multivariate analyses were done.

Not exact matches

These studies are at risk for selection bias both of cases and of control individuals and their results might be influenced by potential confounders such as other health behaviors that may be independently associated both with breastfeeding and childhood leukemia risk, although this is of course not limited to case - control studies.

Although we could not find estimates of fan use in the US population, we examined the potential selection bias by evaluating characteristics associated with SIDS risks in study participants and nonparticipants in a previously published article.16 Using California birth certificate data, we compared the ORs for maternal age, maternal education, parity, birth weight, infant sex, and late initiation of prenatal care (> 5 months» gestation).

Some people believe that during the pet adoption process some potential owners associate the color black with evil or misfortune (similar to the common superstition surrounding black cats), and this bias transfers over to their choice of dog.

S1 which removed alternatively (a) all tree - ring data or (b) 7 additional long - term proxy records associated with greater uncertainties or potential documented biases (showing the temperature reconstruction was robust to removal of either of these datasets), we here removed both data sets simultaneously from the predictor network (Fig.

Although benefit - transfer can provide a quick, low - cost approach for obtaining desired monetary values, the methods are often associated with uncertainties and potential biases of unknown magnitude.

We used EHCs as recruitment sites because they provide health - related information that can be used for eligibility screening purposes, and their clients are usually willing to participate in health - related studies endorsed by the Department of Health, HKSAR.37 Although EHCs» clients are representative of the general population of older adults in terms of age and SES, 37 they tend to be more health conscious.38 To examine the potential bias (better mental health) associated with recruiting participants from the EHCs, we recruited approximately 30 % of the sample (n = 258) from elderly community centres with no formal provision of medical and health services.