Hi, I am exploring the role of neighborhood characteristics and individual observed and latent factors on 5-year survival among persons living with AIDS. Mplus seems to be ideal for this.
I ran a very simple Cox proportional hazard model on (0,1) dummy variables of race/ethnicity i.e. MODEL: aids ON blk lat asn), and the Mplus estimates are very different from those I obtain using the cox approach in R (and are not in line with the K-P plots).
*The R PH output is as follows: race coef exp(coef) se z p blk 0.292 1.339 0.107 2.72 0.0066 lat -0.241 0.786 0.142 -1.70 0.0890 asn -0.310 0.734 0.249 -1.24 0.2100
**By contrast, the Mplus estimates are: race Est SE Est/SE BLK 0.008 0.010 0.808 LAT 0.005 0.010 0.520 ASN 0.052 0.025 2.098
Can you please help me understand why I am returning such different results? Thanks, Michael
If you are following Example 6.21, you should get the same results. You may have something specified incorrectly. Please send your input, data, output, and license number to email@example.com. Please also send the R input and ouptut.