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. 2011 Mar 4;84(3):435–442. doi: 10.4269/ajtmh.2011.10-0571

Table 3.

Residence-based variables associated with RS classification of elevated versus low plague risk

Risk factor Elevated risk (N = 100) Low risk (N = 58) OR 95% CI P value
Present (N) Percent Present (N) Percent
Water available to rodent 45 (87) 52 34 (48) 71 0.44 0.21–0.94 0.031
Peridomestic sheep 33 (91) 36 9 (54) 17 2.84 1.24–6.55 0.012
Corn grown or dried within 30 m 60 (98) 61 16 (58) 28 4.14 2.05–8.39 < 0.0001
Coffee grown within 30 m 44 (98) 45 40 (58) 69 0.37 0.19–0.73 0.004
Melons (vine) grown or dried within 30 m 11 (98) 11 1 (58) 2 7.2 0.91–57.35 0.031
Melons (tree) grown or dried within 30 m 12 (98) 12 1 (58) 2 7.95 1.01–62.86 0.022
Other crops grown or dried within 30 m 34 (98) 35 11 (58) 19 2.27 1.04–4.94 0.036
Processed commercial foods stored within residence 34 (88) 35 37 (58) 64 0.36 0.18–0.71 0.003