Table 6. Means, model estimates, and Chi-squared results for the mixed-effects modelling of mtDNA levels within the 63 HIV+ pregnant women.
| Mean (±SEM) a | Estimated Model coefficient (±SEM) b | LRT d (df) | p-value | |
|---|---|---|---|---|
| Intercept | 58.1 | |||
| Ethnicity | 9.3 (3) | 0.03 | ||
| Caucasian | 116 (4) | reference | ||
| Asian/Other | 106 (6) | -8.5 (8.8) | ||
| Black/African | 131 (4) | 19.9 (8.4) | ||
| Aboriginal | 124 (4) | 2.0 (7.5) | ||
| Timing of visit | 29.3 (4) | < 0.0001 | ||
| 13–22 weeks | 111 (4) | reference | ||
| 23–30 weeks | 114 (5) | -0.8 (4.5) | ||
| 31–40 weeks | 119 (5) | 3.9 (4.6) | ||
| Delivery | 117 (6) | -0.03 (4.7) | ||
| 6 weeks postpartum | 139 (6) | 20.5 (4.8) | ||
| CD4 Nadir | 0.06 (0.02) | 17.1 (1) | < 0.0001 |
a Means (± SEM) are reported for the raw data without correction for covariates.
b Estimated effects after taking covariates into account.
d LRT = likelihood-ratio test statistic
SEM, Standard error on the mean
df, degrees of freedom