Groups HCn=150 COPDn=33 TBn=47 Sarcoidn=38 All UIP/IPF
n=145
UIP/IPF>55yrs
n=94
UIP/IPF<55yrs
n=30
UIP/IPF& FH
n=21
Mean age at time of study(range) 50(16-85) 72(46-89) 46(20-85) 48(28-78) 70(38-93) 76(55-93) 50(38-55) 68(49-84)
% male 51 57 68 42 77 78 73 76
% Caucasian 93 100 58 74 88 86 84 100
% Afro-Caribbean 1.5 0 8 16 0 0 0 0
% Chinese 0.5 0 4 10 0 0 0 0
% Indian 5 0 30 0 12 14 16 0
Table 1: Study group demographics.