Pettersson, K.S.

variant frailty 0.001 lh variant relation strength subject hormone group library erasmus mc level maxle wild-type health assessment questionnaire bone mineral density leptin leg extensor strength heterozygote population study wild-type lh group regression characteristic lh variant allele mineral table ratio assay density muscle strength luteinizing hormone non-shbg-t 0.04 t levels study population muscle performance protein nmol /l shbg energy x-ray absorptiometry value assessment point van den beld coefficient variable serum concentration regression analysis erasmu health score questionnaire variant form difference huhtaniemi i factor lh levels pettersson measure luteinizing albumin 0.01 0.02 endocrinol non-shbg-bound regression coefficient serum androgen activity analysis wild-type hormone december lh forms 0.002 clin chem wild-type lh subjects vivo bioactivity g /l albumin downloaded activity self-reported disability