Table 2.
Characteristics of Maryland HIV cases newly diagnosed during 2011–2013 by nucleotide sequence ascertainment in the MHS system, N = 4423.
| Sequence ascertained n (%) N = 1282 |
Sequence not ascertained n (%) N = 3141 |
Prevalence ratio (PR) | 95% CIa | p-Value | |
|---|---|---|---|---|---|
| Year of HIV diagnosis | |||||
| 2011 | 452 (30.1) | 1050 (69.9) | Ref | N/A | N/A |
| 2012 | 429 (28.9) | 1056 (71.1) | 1.0 | (0.9–1.1) | 0.5 |
| 2013 | 401 (27.9) | 1035 (72.1) | 0.9 | (0.8–1.0) | 0.2 |
| Age at diagnosis, years | |||||
| ≥50 | 232 (25.1) | 694 (74.9) | Ref | N/A | N/A |
| 13–49 | 1050 (30.0) | 2447 (70.0) | 1.2 | (1.1–1.4) | 0.003 |
| Sex at birth | |||||
| Male | 909 (28.9) | 2235 (71.1) | Ref | N/A | N/A |
| Female | 373 (29.2) | 906 (70.8) | 1.0 | (0.9–1.1) | 0.9 |
| Race/ethnicity | |||||
| Non-black/African American | 341 (30.6) | 773 (69.4) | Ref | N/A | N/A |
| Black/African American | 941 (28.4) | 2368 (71.6) | 0.9 | (0.8–1.0) | 0.2 |
| Transmission category | |||||
| Male-to-male sex (MSM) | 467 (31.4) | 1021 (68.6) | Ref | N/A | N/A |
| Heterosexual | 332 (32.5) | 688 (67.5) | 1.0 | (0.9–1.2) | 0.5 |
| Persons who inject drugs (PWID)b | 69 (30.9) | 154 (69.1) | 1.0 | (0.8–1.2) | 0.9 |
| Other/none | 414 (24.5) | 1278 (75.5) | 0.8 | (0.7–0.9) | <0.001 |
| CD4 at diagnosis (cells/mm3)c | |||||
| >500 | 324 (27.6) | 850 (72.4) | Ref | N/A | N/A |
| ≤500 | 904 (35.5) | 1641 (64.5) | 1.3 | (1.2–1.4) | <0.001 |
| First viral load (copies/mL) d | |||||
| <1000 | 157 (21.0) | 591 (79.0) | Ref | N/A | N/A |
| ≥1000 | 1036 (38.0) | 1691 (62.0) | 1.8 | (1.6–2.1) | <0.001 |
| Region of residence | |||||
| Outside Central Region | 557 (24.9) | 1677 (75.1) | Ref | N/A | N/A |
| Inside Central Region | 725 (33.1) | 1464 (66.9) | 1.3 | (1.2–1.5) | <0.001 |
| Region of residence stratified by CD4 at diagnosis (cells/mm3)c | |||||
| Outside Central Region | |||||
| CD4 > 500 | 117 (20.4) | 456 (79.6) | Ref | N/A | N/A |
| CD4 ≤ 500 | 413 (31.6) | 895 (68.4) | 1.5 | (1.3–1.9) | <0.001 |
| Inside Central Region | |||||
| CD4 > 500 | 207 (34.4) | 394 (65.6) | Ref | N/A | N/A |
| CD4 ≤ 500 | 491 (39.7) | 746 (60.3) | 1.2 | (1.0–1.3) | 0.03 |
| Place of birthe | |||||
| Foreign-born | 82 (23.1) | 273 (76.9) | Ref | N/A | N/A |
| US-born | 1040 (29.4) | 2495 (70.6) | 1.3 | (1.0–1.6) | 0.01 |
a
CI, confidence interval.
b
Includes MSM who inject drugs.
c
Excludes persons with unknown CD4 count (n = 704).
d
Excludes persons with unknown first viral load (n = 948).
e
Excludes persons with unknown place of birth (n = 533).