Hope you're doing well and thanks for sharing this package. I understand that for hd_calc, the training dataset is NHANES III with individuals 20-30 years of age, a hypothetically young, "healthy" cohort, however for the phenoage_nhanes and kdm_nhanes, I am having a hard time understanding the NHANES III training cohort used for these functions. Are these populations also assumed to be "healthy agers"?
you mentioned that "Models included covariates for chronological age and sex. The original KDM Biological Age algorithm (left-most column) was projected onto data from NHANES 2007-2010 only because other NHANES IV waves did not include spirometry measurements. The original Levine Phenotypic Age algorithm (second column from left) was projected onto data from NHANES 1999-2010 and 2015-2018 only because the intervening waves did not include CRP measurements."
How did you specify model covariates and the projection data into the table_ses function?
Hi Dayoon!
Hope you're doing well and thanks for sharing this package. I understand that for hd_calc, the training dataset is NHANES III with individuals 20-30 years of age, a hypothetically young, "healthy" cohort, however for the phenoage_nhanes and kdm_nhanes, I am having a hard time understanding the NHANES III training cohort used for these functions. Are these populations also assumed to be "healthy agers"?
Also, in your code to create a table:
you mentioned that "Models included covariates for chronological age and sex. The original KDM Biological Age algorithm (left-most column) was projected onto data from NHANES 2007-2010 only because other NHANES IV waves did not include spirometry measurements. The original Levine Phenotypic Age algorithm (second column from left) was projected onto data from NHANES 1999-2010 and 2015-2018 only because the intervening waves did not include CRP measurements."
How did you specify model covariates and the projection data into the table_ses function?