Volume 16, Number 9—September 2010
Research
Determinants of Multidrug-Resistant Tuberculosis Clusters, California, USA, 2004–2007
John Z. Metcalfe
, Elizabeth Y. Kim, S.-Y. Grace Lin, Adithya Cattamanchi, Peter Oh, Jennifer Flood, Philip C. Hopewell, and Midori Kato-Maeda
, Elizabeth Y. Kim, S.-Y. Grace Lin, Adithya Cattamanchi, Peter Oh, Jennifer Flood, Philip C. Hopewell, and Midori Kato-MaedaTable 4
Univariate associations of phylogeographic lineage with 112 clustered and nonclustered MDR TB infections, California, USA, 2004–2007*
| Strain lineage | Nonclustered, n = 87, no. (%) | Clustered, n = 25, no. (%) | OR (95% CI) | p value |
|---|---|---|---|---|
| East-Asian | 37 (43) | 17 (68) | 2.87 (1.03–8.48) | 0.04 |
| Euro-American | 26 (30) | 8 (32) | 1.10 (0.36–3.12) | 0.81 |
| Indo-Oceanic | 21 (24) | 0 | – | 0.003 |
| East African–Indian | 3 (4) | 0 | – | 1.0 |
*N = 112. Lineage could not be established by spoligotyping for 11 (8.9%) cases. MDR, multidrug-resistant tuberculosis; OR, odds ratio; CI, confidence interval.
