Table 1.

Demographic features of 63 patients with AS presenting with apical lung fibrosis.

CharacteristicsTotal N = 63 n (%)
Male to female53:10
Mean age at onset, yrs28.7 ± 9.1 (12–48)
Mean age of lung disease44.9 ± 15.7 (17–73)
AS preceded lung disease, duration, yrs17.6 ± 12.6 (0.5–49)
AS preceded lung disease60 (95.2)
Lung disease preceded AS3 (4.8)
AS associated with TB40 (63.5)*
Culture positive19 (30.2)
Chest radiograph diagnosis21 (33.3)
AS associated with atypical TB2 (3.2)
AS associated with fungus1 (1.6)
AS inflammation22 (34.9)
Pneumothorax3 (4.8)

  • ↵* One coexisted with atypical TB and the other with fungus infection.