Table 4.
Hospitalization Rate by Primary Specific Cause1 during Study Period, 1999–2007
| Cause of Hospitalization | All periods | 1999–2001 | 2002–2004 | 2005–2007 | Relative Rate2 (95% CI) | p-value |
|---|---|---|---|---|---|---|
| AIDS Defining Condition | ||||||
| Patients hospitalized | 78 | 33 | 29 | 24 | ||
| Total hospitalizations | 133 | 47 | 49 | 37 | 0.95 (0.71–1.27) | 0.72 |
| Rate | 10.3 (8.7–12.2) | 10.9 (8.2–14.5) | 10.8 (8.2–14.3) | 9.0 (6.5–12.4) | ||
|
| ||||||
| Infection | ||||||
| Patients hospitalized | 401 | 171 | 166 | 139 | ||
| Total hospitalizations | 637 | 230 | 226 | 181 | 0.94 (0.84–1.05) | 0.27 |
| Rate | 49.2 (45.5–53.2) | 53.4 (46.9–60.8) | 49.9 (43.8–56.9) | 44.0 (38.1–50.9) | ||
|
| ||||||
| MRSA 3 | ||||||
| Patients hospitalized | 13 | 1 | 2 | 10 | ||
| Total hospitalizations | 21 | 2 | 4 | 15 | 3.19 (1.10–9.20) | 0.03 |
| Rate | 1.6 (1.1–2.5) | 0.5 (0.1–1.9) | 0.9 (0.3–2.4) | 3.6 (2.2–6.1) | ||
|
| ||||||
| Skin/Soft Tissue Infection | ||||||
| Patients hospitalized | 71 | 17 | 26 | 31 | ||
| Total hospitalizations | 94 | 21 | 30 | 43 | 1.50 (1.07–2.09) | 0.02 |
| Rate | 7.3 (5.9–8.9) | 4.9 (3.2–7.5) | 6.6 (4.6–9.5) | 10.5 (7.8–14.1) | ||
|
| ||||||
| Pneumonia | ||||||
| Patients hospitalized | 84 | 37 | 32 | 26 | ||
| Total hospitalizations | 108 | 42 | 36 | 30 | 0.91 (0.70–1.18) | 0.47 |
| Rate | 8.3 (6.9–10.1) | 9.8 (7.2–13.2) | 8.0 (5.7–17.0) | 7.3 (5.1–10.4) | ||
|
| ||||||
| Liver Disease 4 | ||||||
| Patients hospitalized | 21 | 4 | 14 | 7 | ||
| Total hospitalizations | 34 | 5 | 17 | 12 | 1.71 (1.03–2.83) | 0.04 |
| Rate | 2.6 (1.9–3.7) | 1.2 (0.5–2.8) | 3.8 (2.3–6.0) | 2.9 (1.7–5.1) | ||
|
| ||||||
| Chronic End-Organ Disease 5 | ||||||
| Patients hospitalized | 107 | 41 | 47 | 33 | ||
| Total hospitalizations | 161 | 48 | 68 | 45 | 1.02 (0.94–1.10) | 0.62 |
| Rate | 12.4 (10.7–14.5) | 11.1 (8.4–14.8) | 15.0 (11.8–19.0) | 10.9 (8.2–14.7) | ||
|
| ||||||
| Surgery, Primary Reason | ||||||
| Patients hospitalized | 218 | 70 | 85 | 91 | ||
| Total hospitalizations | 283 | 75 | 107 | 101 | 1.17 (1.01–1.35) | 0.04 |
| Rate | 21.9 (19.5–24.6) | 17.4 (13.9–21.8) | 23.6 (19.6–28.6) | 24.6 (20.2–29.2) | ||
|
| ||||||
| Surgery, Any 6 | ||||||
| Patients hospitalized | 310 | 104 | 131 | 126 | ||
| Total hospitalizations | 424 | 115 | 162 | 147 | 1.14 (1.01–1.29) | 0.03 |
| Rate | 32.7 (29.8–36.0) | 26.7 (22.2–32.1) | 35.8 (30.7–41.7) | 35.8 (30.4–42.0) | ||
|
| ||||||
| Drug-Related 7 | ||||||
| Patients hospitalized | 34 | 16 | 10 | 12 | ||
| Total hospitalizations | 47 | 20 | 12 | 15 | 0.89 (0.59–1.35) | 0.59 |
| Rate | 3.6 (2.7–4.8) | 4.6 (3.0–7.2) | 2.7 (1.5–4.7) | 3.6 (2.2–6.1) | ||
|
| ||||||
| Suicide Attempt | ||||||
| Patients hospitalized | 19 | 7 | 7 | 6 | ||
| Total hospitalizations | 20 | 7 | 7 | 6 | 0.96 (0.56–1.64) | 0.87 |
| Rate | 1.5 (1.0–2.4) | 1.6 (0.8–3.4) | 1.5 (0.7–3.2) | 1.5 (0.7–3.2) | ||
|
| ||||||
| Trauma/Injury-Related | ||||||
| Patients hospitalized | 37 | 19 | 13 | 6 | ||
| Total hospitalizations | 41 | 22 | 13 | 6 | 0.54 (0.35–0.83) | <0.01 |
| Rate | 3.2 (2.3–4.3) | 5.1 (3.4–7.8) | 2.9 (1.7–4.9) | 1.5 (0.7–3.2) | ||
Rates per 1,000 person-years. Rates are unadjusted and based on clinically relevant diagnoses which were not mutually exclusive from the organ and disease categories presented in Table 3.
RR are estimated changes from one time interval to the next
MRSA was based on positive culture confirmation
Liver disease defined as an admission due to cirrhosis, hepatitis B, C, or other any other form of hepatitis
Chronic end-organ diseases included chronic obstructive lung disease, asthma, congestive heart failure, cardiomyopathy, arrhythmia, coronary artery disease, cerebrovascular disease, hypertension, pancreatitis, chronic liver disease, and chronic renal disease
Surgery performed during hospitalization regardless if it was the primary reason for admission
Drug-related defined as alcohol or illicit drug use or an overdose as the cause of admission