TABLE 2.
COMPARISON OF GENOTYPE CLUSTERS ACCORDING TO THE HIV TEST RESULT OF THE PATIENTS WITH TUBERCULOSIS IN THE CLUSTERS, SAN FRANCISCO, 1991–2002
| Characteristics of Clusters | Total | Clusters with at Least One HIV-positive Patient with TB | Clusters of Only HIV-uninfected Patients with TB | P Value |
|---|---|---|---|---|
| No. of clusters (%) | 158 (100.0) | 73 (46.2) | 85 (53.8) | <0.0005 |
| No. of cases in cluster (%) | 596 (100.0) | 377 (63.3) | 219 (36.7) | <0.0005 |
| Median cluster size (range) | 2 (2–31) | 3 (2–31) | 2 (2–12) | <0.00005 |
| Median cluster duration, d* (range) | 178 (1–2,346) | 243 (1–2,346) | 96 (1–1,422) | 0.009 |
| Median time between successive cases, d (range) | 62.0 (1–361) | 57.0 (1–354) | 78.5 (1–361) | 0.018 |
Definition of abbreviations: TB = tuberculosis.
*
First case to last case.