Table 1. Posterior mean and 95% credible intervals of the model parameters in the SPM and the LMM fitted to the HERS data.
SPM | LMM | ||||||||
---|---|---|---|---|---|---|---|---|---|
Longitudinal | Dropout | Longitudinal | |||||||
Mean | 2.5% | 97.5% | Mean | 2.5% | 97.5% | Mean | 2.5% | 97.5% | |
Intercept | −0.55 | −0.75 | −0.36 | 1.11 | 0.91 | 1.32 | −0.57 | −0.75 | −0.38 |
Baseline HIV viral load | |||||||||
0–500 | 1.52 | 1.32 | 1.74 | 0.75 | 0.54 | 0.97 | 1.54 | 1.33 | 1.74 |
500–5k | 1.02 | 0.82 | 1.22 | 0.63 | 0.44 | 0.83 | 1.03 | 0.83 | 1.21 |
5k–30k | 0.47 | 0.26 | 0.70 | 0.26 | 0.05 | 0.47 | 0.48 | 0.26 | 0.69 |
30k+ (reference) | |||||||||
Baseline HIV symptoms | −0.02 | −0.07 | 0.03 | −0.01 | −0.06 | 0.05 | −0.03 | −0.08 | 0.03 |
ART at baseline | −0.65 | −0.77 | −0.53 | −0.22 | −0.40 | −0.04 | −0.66 | −0.77 | −0.55 |
(j − 1)* | – | – | – | 1.67 | 1.09 | 2.28 | – | – | – |
{(j − 1)*}2 | – | – | – | −2.79 | −3.41 | −2.16 | – | – | – |
(j − 1)**ART at baseline | – | – | – | 0.37 | 0.04 | 0.70 | – | – | – |
Time (visit) | −1.21 | −1.59 | −0.84 | – | – | – | −0.91 | −1.29 | −0.54 |
Time*baseline viral load | |||||||||
0–500 | 0.59 | 0.21 | 1.00 | – | – | – | 0.37 | −0.03 | 0.78 |
500–5k | 0.53 | 0.15 | 0.91 | – | – | – | 0.35 | −0.03 | 0.74 |
5k–30k | 0.37 | −0.06 | 0.79 | – | – | – | 0.25 | −0.16 | 0.67 |
30k+ (reference) | – | – | – | ||||||
Time*baseline HIV symptoms | −0.06 | −0.15 | 0.04 | – | – | – | −0.04 | −0.14 | 0.05 |
Time*ART at baseline | 0.21 | 0.01 | 0.40 | – | – | – | 0.25 | 0.06 | 0.43 |
corr(bi1, bi2) | −0.20 | −0.29 | −0.13 | – | – | – | −0.23 | −0.31 | −0.14 |
var(bi1) | 0.56 | 0.50 | 0.62 | – | – | – | 0.56 | 0.50 | 0.62 |
var(bi2) | 1.24 | 1.07 | 1.44 | – | – | – | 1.12 | 0.97 | 1.29 |
0.15 | 0.14 | 0.16 | – | – | – | 0.15 | 0.14 | 0.16 | |
γ1 | – | – | – | 0.23 | 0.15 | 0.30 | – | – | – |
γ2 | – | – | – | 0.28 | 0.22 | 0.35 | – | – | – |