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Table 2 Results of cluster analysis: clusters with high rates (the observed number of cases is greater than the expected number of cases)

From: Spatial distribution and cluster analysis of sexual risk behaviors reported by young men in Kisumu, Kenya

Case definition Cluster Type No. of cases in cluster Expected No. of cases LLR Cluster Rate Ratio P- value
Sample Description       
Age group: 21-24 Primary 11 5.27 8.20 2.09 0.23
Marital status: married or cohabitating Primary 2 0.09 6.27 22.22 0.70
Importance of religion: quite or very important Primary 38 30.25 8.97 1.26 0.10
Employment: salaried or self-employed Secondary 31 15.78 13.20 1.96 0.003
Education: more than primary Primary 88 68.42 14.49 1.29 <0.001
Education: more than primary Secondary 124 104.44 9.31 1.19 0.07
HIV risk behavior       
Condom use in the past 6 months: once or more Primary 36 27.24 8.13 1.32 0.16
Age at sexual debut: <15 years of age Primary 8 2.69 8.83 2.97 0.13
Condom use in the past 6 months: less than half       
the time Primary 73 49.55 11.17 1.47 0.01
Sexual function in the last six months       
For ≥ 2 weeks experienced lack of interest in sex Primary 16 8.19 4.37 1.95 0.99
For ≥ 2 weeks was unable to come to a climax Primary 2 0.073 5.35 27.40 0.43
For ≥ 2 weeks came to a climax too quickly Primary 2 0.07 5.35 28.57 0.43
For ≥ 2 weeks experienced pain during intercourse Primary 3 0.27 5.35 11.11 0.70
For ≥ 2 weeks had trouble achieving or maintaining an erection Primary 3 0.28 5.22 10.71 0.73
Any dysfunction in the past 6 months Primary 6 1.67 7.76 3.59 0.28
Sexually transmitted infections at baseline       
HSV2 Primary 5 1.28 6.89 3.91 0.43
Syphilis Primary 2 0.096 4.72 20.83 0.52
Trichomonas vaginalis Primary 3 0.27 5.39 11.11 0.36
Chlamydia trachomatis Primary 2 0.09 6.31 22.22 0.67
Any STI at baseline Primary 5 1.50 6.06 3.33 0.82