“…Seventeen studies in 1489 RA patients (mean age 53 years, 77% females) and 1082 healthy controls (mean age 54 years, 71% females) reported data on the MPV [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 37 , 39 , 41 , 42 , 43 , 45 , 46 , 47 , 50 ]. Eleven studies were performed in Turkey [ 28 , 30 , 31 , 32 , 33 , 34 , 35 , 39 , 41 , 45 , 47 ], two in Egypt [ 46 , 50 ], and one in Romania [ 29 ], India [ 37 ], China [ 42 ], and Iran [ 43 ], respectively. Eleven studies were prospective [ 29 , 30 , 32 , 34 , 37 , 41 , 43 , 45 , 46 , 47 , 50 ] and six retrospective ( Table 1 ) [ 28 , 31 ...…”