Personalized Dietary Advice 3 Months After Discharge From Hospitalization in Geriatrics: Effect on Nutritional Status According to Coronavirus Disease 2019 (COVID-19) Status (Positive or Negative) During Hospitalization

This study consists of nutritional monitoring after hospitalization, carried out by dieticians. Consultations are done remotely, by phone only. Eligible subjects are included, either upon discharge from hospital or within 3 months (at the latest) following their hospitalization. 135 subjects will be included, 50% will be included in Coronavirus disease Positive group "Covid (+)" and 50% in the Coronavirus desease negative group "Covid (-)" . The following data will be collected * At Inclusion (D0): Average length of hospital stay, medical diagnoses, severity of hospital stay, autonomy and dependency scores, albumin and body mass index (BMI). * At M3, M4, M5 and M6: Dietary monitoring data, patient's vital status and dependency scores.