“…Our recent systematic review of the literature [90] identified a number of clinical factors that may be associated with survival; magnitude of the elevation in P pa at diagnosis [78,89,91], thrombosis [89,92,93], thrombocytopenia [94], presence of an anti-cardiolipin antibody [89,92,93], concurrent pregnancy [95,96], infection [77], Raynaud's phenomenon [93,97], plexiform lesion [95] and pulmonary vasculitis [96]. Conversely, lupus central nervous system disease [89], lupus nephritis [89] and lupus disease activity [89,[98][99][100] have not been associated with survival in SLE-PH. It has been suggested that SLE-PAH patients have a better prognosis than SSc-PAH patients, where CONDLIFFE et al [44] reported a 3-yr survival rate of 75% in SLE-PAH compared to 47% in SSc-PA patients in the UK (p50.01).…”