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. Author manuscript; available in PMC: 2015 May 28.
Published in final edited form as: Respir Med. 2015 Feb 7;109(4):526–531. doi: 10.1016/j.rmed.2015.01.019

Table 1.

Descriptive statistics and group differences.

Clinical characteristic Total cohort mean (SD) median (IQR) Group <=500/yr prednisone (n = 62) PRED- LOW Group > 500/yr prednisone (n = 52) PRED-HIGH p-Value
Prednisone 1817.35 (2687.82) 32.09 (102.67) 3944.43 (2739.85) <0.001
 Dose (mg in the previous year) 230 (3311.25) 0 (0) 3491 (3168)
Age 51.82 (15.75) 52.58 (11.08) 50.9 (12.23) 0.45
52 (11.59) 53 (13.75) 52 (18.75)
Sex (ratio of males) 52.63% 54.83% 50% 0.74
Race (ratio of African Americans) 19.29% 11.29% 28.85% 0.03
# organs involved 2.44 (1.21) 2 (1.19) 2.44 (1.19) 0.051
2 (2) 2 (1) 2 (2)
% lung involvement 95.6% 95.16% 96.15 0.99
Days since first symptom attributed to sarcoidosis 2820.34 (2652.7) 3018 (3000.28) 2585.21 (2172.63) 0.375
1652.5 (3099) 1656 (2656) 1652 (2620)
Days since diagnosis of sarcoidosis 2650.15 (2765.34) 2900.84 (3200.52) 2351.25 (2127.63) 0.27
1411 (3104.51) 1410 (3088) 1426 (2620)
FVC (% predicted) 80.86 (19.98) 85.39 (18.75) 75.54 (17.99) 0.005
83 (23) 88 (18) 75 (21.25)
Stage IV chest radiograph 14.9% 19.2% 11.2% 0.37
Additional anti-sarcoidosis drugs (% of cohort) 27.1% 9.6% 51.9% <0.001

FVC: forced vital capacity: First rows show means and standard deviations, second rows show median and inter-quartile range (where applicable).