Table 4.
Selection of matched characteristics with natural language processing (NLP) phrases associated with LTFU and Retention (comprehensive table in the Supplementary Material)
| Matched characteristics relatively associated with LTFU | Likely expanded phrase | Domain | Rank | Weight |
|---|---|---|---|---|
| KS | Kaposi’s Sarcoma | Opportunistic infection | 23 | 3.655 |
| syphilis | STI | 25 | 3.613 | |
| Burkitt | Burkitt’s lymphoma | Opportunistic infection | 41 | 3.348 |
| HCV | Hepatitis C virus | Comorbidities | 61 | 3.116 |
| MSM | Man who has sex with men | Sexual and gender minorities | 111 | 2.705 |
| CMV retinitis | Opportunistic infection | 155 | 2.439 | |
| K103N | HIV genotype mutation | 177 | 2.319 | |
| substance abuse | Substance use disorder | 188 | 2.282 | |
| chlamydia | STI | 223 | 2.182 | |
| tearful | Mental illness | 232 | 2.149 | |
| Human papillomavirus | STI | 259 | 2.053 | |
| HBV | Hepatitis B virus | Comorbidities | 271 | 2.039 |
| cocaine | Substance use disorder | 294 | 1.967 | |
| influenza vaccine | Preventive health services | 298 | 1.963 | |
| m184v | HIV genotype mutation | 401 | 1.74 | |
| Bipolar | Mental illness | 407 | 1.717 | |
| heroin | Substance use disorder | 432 | 1.673 | |
| Not use condom | Condomless sex | 552 | 1.484 | |
| unemployed | Life stressors and markers of socioeconomic status | 747 | 1.273 | |
| Matched characteristics relatively associated with Retention | Likely expanded phrase | Domain | Rank | Weight |
| well on art | Good adherence | 3 | –4.698 | |
| Depression | Mental illness | 13 | –3.845 | |
| Marijuana | Substance use disorder | 71 | –2.562 | |
| HSV | Herpes simplex virus | STI | 91 | –2.329 |
| toxo | toxoplasmosis | Opportunistic infection | 109 | –2.229 |
| Alcohol abuse | Substance use disorder | 117 | –2.191 | |
| cryptococcal | Opportunistic infection | 131 | –2.091 | |
| congenital HIV | Congenital HIV | 146 | –2.043 | |
| Pap | Papaliconaou smear | Preventive health services | 158 | –2.008 |
| Cesarean section | Pregnancy | 321 | –1.529 | |
| schizophrenia | Mental illness | 680 | –1.037 | |
| Excellent adherence | Good adherence | 948 | –0.778 | |
| Pregnancy | Pregnancy | 1011 | –0.736 |
Note: LTFU = lost to follow-up; Weights and ranks show the relative importance of a feature that matched the characteristic, sorted as illustrated in Figure 2. Positive weights are relatively related to LTFU, negative weights are relatively related to Retention. Weight ranks start at 0 (zero). The results are from the classifier trained on the main experiment setup. The model intercept was: −1.155.