Table 3.

Latent class growth analysis

Protocol (no. of patients)ClassNo. of patients per class (%)Mean baseline antigen (ng/ml)Baseline to wk 2 slope (ng/ml/wk)Wk 2 to wk 12 slope (ng/ml/wk)P valuea
MSG-29 serum antigen (44)115 (34.1)32.209−13.937−1.223<0.0001
229 (65.9)16.703−8.802−0.924
MSG-29 urine antigen (44)123 (52.3)35.643−7.888−1.036<0.0001
221 (47.7)17.253−4.831−0.384
ACTG-120 urine antigen (39)118 (46.2)34.490+5.076−2.052<0.0001
221 (53.8)13.504−0.404−0.740
  • a The P values correspond to the comparison between the 2 classes in the designated categories.