. Author manuscript; available in PMC: 2021 Mar 9.

Published in final edited form as: J Scleroderma Relat Disord. 2020 May 22;6(1):11–20. doi: 10.1177/2397198320915042

Table 1.

Cumulative survival rates in select historical SSc observational studies

Study Author, Year	N	Number of Centers, Location	Study Duration	Survival Rates
Bennet et al., 1971¹⁶	67	Single center (Hammersmith Hospital, London, UK)	1947–1970	5 years = 73% 10 years = 50%
Medsger and Masi, 1973¹⁷	358	VA hospitals, USA	1963–1968	5 years = 44% 7 years = 35%
Altman et al., 1991¹⁸	264	29 centers, USA	1973–1977	2 years = 80% 8.5 years = 50% 12 years = 30%
Steen and Medsger, 2007²⁰	221–655	Single center (University of Pittsburgh, USA)	1972–1996	10 years = 54–66% (varied by decade)
Ferri et al., 2002²¹	1012	3 centers (Italy)	1955–1999	10 year = 69% 20 year = 46%