The phrase "associated by age" is correct and usable in written English.
It can be used to describe a relationship or connection between individuals or groups that is determined by their age.
Example: "The children were grouped together, associated by age, to ensure they received appropriate activities for their developmental stage."
Alternatives: "linked by age" or "connected by age".
Despite this, reports on how migraine and RLS may be associated by age is limited.
Birth weight in kilograms was positively associated with AA at age 7 (r = 0.079, P = 0.014) but negatively associated by age 17 (r = −0.068, P = 0.035); birth weight broken into low, normal and high categories (Fig. 4) was associated with AA at age 7 (F = 5.13, P = 0.006), but not at birth (F = 0.06, P = 0.941) or age 17 (F = 0.70, P = 0.496).
All "semantic concepts" (such as elements, relations, contexts or ontology ) can be associated by annotations with information such as age, weight and gender for a patient, function for a gene or experimental evidence for a protein-protein interaction.
They represent the increased odds of being at risk for a presented item associated with age (by each year) or by being female.
We observed that molecular subtypes were independently associated with age by multivariate analysis.
Adjusting for tumour characteristics associated with age by logistic regression analyses, older women were less likely to receive standard management than younger women for all indicators investigated.
54 One study reported increasing cockroach allergen exposure in infancy was positively associated with wheeze by age 5 years (OR 1.8) and, independently, the presence of a dog and higher concentrations of cat allergen exposure were associated with reduced wheeze risk (OR 0.3 and 0.6).
A meta-analysis of 30 randomised controlled trials conducted between 1966 and 2002 assessed mortality associated with HRT by age above or below 60 at trial entry.
A sample size calculation for time to reperfusion is given here as this represents the smallest number of clinical events, is clinically very important and health outcomes are associated with disparities by age and ethnicity [ 74].
Given these conflicting results and known differences in the tumor biology of younger and older women diagnosed with breast cancer [ 24- 26], we conducted a large, comprehensive pooled analysis of six case control studies, two of which were nested within cohorts, to examine risk of breast cancer associated with MD by age and tumor characteristics.
Then, we tested in the same longitudinal model whether the hormone and density were associated at age 12 by constraining Cov(hormone age 12, density age 12) to equal zero.
