Table 1.
Characteristics of parapneumonic empyema-related hospitalizations, United States 1996–2008*
| < 18 years (n=26125) | 18–39 years (n=22185) | 40–64 years (n=62358) | ≥ 65 years (n=46375) | All (n=157094) | |
|---|---|---|---|---|---|
| Age, mean | 5.1 (5–5.3) | 30.7 (30.6–30.9) | 51.9 (51.8–52) | 76.7 (76.5–76.8) | 48.4 (47.5–49.4) |
| Female, % | 44.7 (43.4–46) | 30.2 (28.8–31.6) | 30.8 (30–31.7) | 40.1 (39.1–41.2) | 35.8 (35.2–36.4) |
| Race, % | |||||
| White | 42 (38.7–45.3) | 52 (49.8–54.3) | 56.7 (54.8–58.6) | 65.3 (63.3–67.2) | 56.1 (54.4–57.8) |
| African Americans | 11.4 (9.3–13.4) | 10.9 (9.7–12.1) | 9.7 (8.8–10.6) | 5.1 (4.5–5.7) | 8.8 (8.0–9.5) |
| Hispanic | 13.1 (10.8–15.4) | 9.2 (8–10.4) | 5.9 (5.2–6.5) | 3.6 (3.1–4.1) | 6.9 (6.2–7.6) |
| Asian or Pacific Islander | 3.7 (2.8–4.5) | 1.6 (1.2–2) | 1.4 (1.1–1.7) | 1.8 (1.4–2.2) | 1.9 (1.7–2.2) |
| Native American | 0.8 (0.4–1.2) | 0.7 (0.3–1) | 0.4 (0.3–0.6) | 0.3 (0.1–0.4) | 0.5 (0.3–0.6) |
| Other | 4.5 (3.6–5.4) | 2 (1.6–2.5) | 1.8 (1.5–2.1) | 1.5 (1.2–1.8) | 2.2 (1.9–2.5) |
| Missing | 23.6 (18.5–28.6) | 24.1 (21.3–27.0) | 24.5 (22.2–26.9) | 23.0 (20.7–25.3) | 23.7 (21.7–25.7) |
| Length of stay, mean (days) | 11.8 (11.4–12.2) | 14.4 (14–14.8) | 15.6 (15.4–15.9) | 16.8 (16.4–17.1) | 15.2 (15.0–15.4) |
| Thoracentesis**, % | 84.6 (82.7–86.5) | 91.3 (90.4–92.2) | 88.4 (87.7–89) | 81.6 (80.8–82.5) | 86.2 (85.6–86.7) |
| In-hospital case fatality, % | 0.4 (0.3–0.6) | 2.2 (1.8–2.7) | 5.2 (4.8–5.6) | 16.1 (15.3–16.9) | 7.2 (6.8–7.5) |
*
Numbers indicate percentages and 95% confidence intervals, unless otherwise specified. Numbers may not add to totals or 100% due to rounding/missing values.
**
Includes thoracentesis-related procedures (ICD9-CM: 34.04, 34.06, 34.09, 34.21, 34.51, 34.52, 34.91)