SLC25A18 and osteoporosis: Patients with GC2 showed a lower rate of hospitalization in the year prior enrolment (GC2 2 (3.6%) vs. other isoforms 11 (18.0%), p = 0.015) along with a decreased incidence of osteoporosis (GC2 1 (1.8%) vs. other isoforms 7 (11.5%), p = 0.04) (Table S3 of the supplementary file).