Table 1.
Analysis of risk factors for Nasal and Throat colonization of S. aureus in HIV positive individuals attending HIV care service in Northern Ethiopia, September 2014–February 2015
| Variables | Frequency (%) | S. aureus colonization | ||
|---|---|---|---|---|
| No. (%) | OR (95 % CI) | P value | ||
| Age in years | ||||
| 1–9R | 10 (4.0) | 1 (10) | NC | 0.59 |
| 10–19 | 19 (7.6) | 8 (42.1) | ||
| 20–29 | 35 (14.1) | 10 (28.6) | ||
| 30–39 | 103 (41.4) | 36 (35.0) | ||
| 40–49 | 55 (22.1) | 18 (32.7) | ||
| 50–59 | 17 (6.8) | 5 (29.4) | ||
| 60–69 | 7 (2.8) | 1 (14.3) | ||
| 70–79 | 3 (1.2) | 2 (66.7) | ||
| Sex | ||||
| FemaleR | 174 (69.9) | 62 (35.6) | 0.613 (0.334–1.123) | 0.113 |
| Male | 75 (30.1) | 19 (25.3) | ||
| Hospitalization in the past 6 months | ||||
| NoR | 223 (89.6) | 60 (26.9) | 11.41 (4.12–31.62) | 0.000 |
| Yes | 26 (10.4) | 21 (80.8) | ||
| Hospital visit in the past 12 months | ||||
| NoR | 61 (24.5) | 28 (45.9) | 0.463 (0.255–0.839) | 0.011 |
| Yes | 188 (75.5) | 53 (28.2) | ||
| Household member’s hospitalization in the past 1 year | ||||
| NoR | 224 (90) | 60 (26.8) | 14.35 (4.732–43.516) | 0.000 |
| Yes | 25 (10) | 21 (84.0) | ||
| Presence of percutaneous device in the past 1 year | ||||
| NoR | 189 (75.9) | 33 (17.5) | 18.91 (9.061–39.46) | 0.000 |
| Yes | 60 (24.1) | 48 (80.0) | ||
| Oral antibiotic usage in the past 3 months | ||||
| NoR | 181 (72.7) | 50 (27.6) | 2.195 (1.232–3.912) | 0.08 |
| Yes | 68 (27.3) | 31 (45.6) | ||
| Current use of trimethoprim-sulfamethoxazole | ||||
| NoR | 161 (64.7) | 24 (27.3) | 1.462 (0.827–2.583) | 0.192 |
| Yes | 88 (35.3) | 57 (35.4) | ||
| Most recent CD4 count | ||||
| <200R | 37 (14.9) | 21 (56.8) | 1.00 | 0.004 |
| 200–500 | 109 (43.8) | 33 (30.3) | 0.331 (0.153–0.713) | 0.005 |
| >500 | 103 (41.4) | 27 (26.2) | 0.271 (0.123–0.593) | 0.001 |
The percent (%) of S. aureus colonization is the proportion of each category
R reference category