Sentences with phrase «within cohort groups»

Not exact matches

I would prefer the authors to match cohorts based on known risk factors within the «low risk group».

We calculated these transition probabilities using data from the longitudinal National Health and Nutrition Evaluation Survey, which assessed a cohort of women in 1987 and the same women again in 1992.25 Several limitations of these data affect our model: 1) because this national survey lacks data on women before age 35 years, women in our model could not develop hypertension, type 2 diabetes mellitus, or MI before age 35 years; 2) because longitudinal survey data were only available for a 5 - year interval, we assumed that transition probabilities were stable within the 5 - year intervals and converted these probabilities from 5 - year to 1 - year intervals; 3) because the survey data were too few to provide stable estimates by year of age, we used transition probabilities for women in three age groups: aged 50 years and younger, 51 — 65 years, and 65 years and older.

The cohort has a high representation of women from disadvantaged and lower socioeconomic groups, who are of particular interest in the targeting of breastfeeding interventions.29, 30 We can not exclude residual confounding by factors that we were not able to account for within this observational study.

The frequency of positive values for antibodies specific to egg yolk and egg white did not differ significantly between the combined egg treatment group and the control group within both cohorts or between the breast - fed and formula - fed cohorts (Table 7).

Hemoglobin, ferritin, and transferrin values did not differ significantly between the combined egg treatment groups and the control group within both the breast - fed and formula - fed cohorts (Table 6).

The new Intermountain Medical Center Heart Institute study directly builds on the MagnaSafe study, validating findings of the main MagnaSafe cohort of 1,500 patients, and expanding that group of patients to include those who need an MRI of their lungs, heart or other organs within the chest.

Looking across age groups, the youngest cohort (18 - 29 years old) has the largest percentage of online daters within it, with 18 % of all online adults in that age group visiting a dating site.

Unfortunately, an inexplicable outbreak among the cohort of «fits» — spasmodic twitching and fainting, that looks half like dancing, half like demonic possession — threatens the unity of the group and Toni's place within its strict hierarchy.

This strategy requires an unbiased estimate of the idiosyncratic component of each group's achievement that is independent of the estimates with which one plans to correlate it - that is, the idiosyncratic component of the average achievement of other groups within the same cohort.

Data from SIMS can be pasted in to monitor specific groups within a cohort and plan targeted interventions.

Finally, to some, a Flex Time cohort within at least the First Year program will appear less a flexible or elastic model of legal education, but just a differently rigid option, with specific times and modes within which required courses must be taken — this is just as likely as the full - time model to work for some but not others in a diverse group of students.

In line with a recent approach [39], we investigated the dimensional relations between factors within a population - based cohort of children with ASD instead of conducting a group comparison with a factorial design.