Consider activities for various age levels.
Hahn et al (2007) found no difference in disease stage at diagnosis between Black and White women after adjustment for several factors, including age, level of education, insurance status, poverty, method of detection and tumour characteristics.
Changes at the whole of (adult) population level were influenced by variations in several age groups.
In this paper, the results of several research works are presented and analysed regarding the differences in the mechanical properties for elements with different age levels.
But by the age of 65 or 70, the rate of bone loss is roughly equal in both sexes because of several age-related factors including declining levels of sex hormones, among them testosterone; a change in the ability to absorb and use calcium; and a more sedentary lifestyle.
In addition to the increasing number of patients being recognised with mtDNA disease, mtDNA mutations have also been found to be present in high levels in several ageing tissues.
Several age-related alterations occur at the cellular level in the immune system leading to a decrease in the immune response.
Three ageing temperatures and several ageing times were investigated.
Each model also examined several patient-level variables: 1) age, 2) race, 3) body mass index (BMI), 4) stage of disease at initial diagnosis, 5) baseline ECOG performance status (PS; 0 - 1 or missing vs. 2 - 4).
The classes combine several levels, with children ranging from preschool age to grade 6.
