Figure 1.

Cases of ALA at the National Taiwan University Hospital from 1990 to 2005. White bars represent ALA patients with unknown HIV status; light-gray bars represent HIV-negative ALA patients; dark gray bars represent HIV-positive ALA patients. The proportion of HIV-infected patients among all cases of ALA increased significantly (0% → 62.5% → 82.3% → 100%; P = 0.005 by 2 × 4 Chi-square analysis).