Table 3. Relevant studies of causes of lymphadenopathy, 1983–2004*.
| Variable | Doberneck (28) | Roberts (25) | Anthony (29) | Freidig (27) | Ridder (1) | Chau (36) | This study |
|---|---|---|---|---|---|---|---|
| Years | 1972–1982 | 1978–1983 | 1983 | 1978–1986 | 1997–2001 | 1996–2001 | 2001–2005 |
| No. patients | 169 | 163 | 228 | 419 | 454 | 423 | 786 |
| Mean age, y (range) | 34.6 (1–78} | (1–90) | (0–>60) | 46.7 (2–89) | 34.9 (2–90) | 40 (14–90) | 32.0 (1–94) |
| Infectious diseases (%) | 8/79 (10.1) | 76 | 11 (4.8) | 66 (15.8) | 156 (34.4) | 75 (17.7) | 391 (49.7) |
| CSD (%) | 0 | 0 | 3 | 0 | 61 (13.4) | 3 | 245 (31.2) |
| Mycobacteria (%) | 5/79 (6.3) | 27 (16.6) | 6 (2.6) | 24 (5.7) | 5 (1.1) | 12 (2.8) | 54 (6.9) |
| Staphylococci or streptococci (%) | 3/79 | 41 | NA | 2 | 13 | 2 | 49 |
| Malignant process (%) | 119 (70.4) | 51 (31.2%) | 60 (26.3) | 113 (27.0) | 52 (11.5) | 95 (17.3) | 47 (26%)† |
| Undiagnosed (%) | 42 (24.9) | 28 (17.2) | 68 (29.8) | 113 (27.0) | 171 (37.7) | 168 (39.7) | 350 (44.6) |
*CSD, cat-scratch disease. †Only 181 samples could be tested by histopathologic analysis.