“…The selected studies included an overall sample of 2844 patients with disorders of consciousness (eight in coma, 0.3%; 1774 in VS/UWS, 62.4%; 926 in MCS, 32.6%; 136 having emerged from MCS [eMCS], 4.7%) caused by different aetiologies (traumatic brain injury 992, 34.9%; non‐traumatic brain injury 1852, 65.1%), with a mean age of 48 years (not available in two studies); 1825 (64.2%) patients were male (not available in one study). Most studies [3, 5, 13–19, 21, 23, 24, 26, 31, 32, 35, 36, 39, 40] investigated the prognostic role of demographic, clinical and anamnestic factors. Some studies also included neurophysiological [5, 16, 19, 20, 22, 23, 25, 28, 30, 32, 33, 38] or neuroimaging [15, 26, 29, 37–39] investigations.…”