[1] Univ Cattolica Sacro Cuore, Dept Geriatr Orthoped & Rheumatol, Rome, Italy
[2] Italian Soc Gerontol & Geriatr, Young Epidemiologists Italian Soc Gerontol & Geria, Florence, Italy
[3] Fdn Policlin Univ A Gemelli IRCCS, Dept Geriatr Orthoped & Rheumatol, Rome, Italy
[4] Univ Milano Bicocca, Sch Med & Surg, Piazza Ateneo Nuovo 1, I-20126 Milan, Italy
[5] Univ Campus Biomed Roma, Dept Med & Surg, Rome, Italy
[6] Univ Ferrara, Dept Med Sci, Ferrara, Italy
[7] Univ Milan, Specialty Training Sch Geriatr & Gerontol, Milan, Italy
[8] Univ Naples Federico II, Dept Translat Med Sci, Naples, Italy