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Table 1 Summary of participant cohort groups and corresponding seroprevalences and risk ratios

From: A retrospective cohort investigation of seroprevalence of Marburg virus and ebolaviruses in two different ecological zones in Uganda

Study Cohorts Number sampled (N = 724) Marburg virus seroprevalence (%) Sudan virus (SUDV) seroprevalence (%) Filovirus seroprevalence (%) Filovirus (Marburg & SUDV) seroprevalence Risk Ratio (95%CI)
Low-Risk group (Luweero district) 291 (40.2%) 0 3 (1.1%) 3 (1.1%) Referencea
High risk groups (Ibanda and Kamwenge districts) 433 (59.8%) 1 (0.2%) 15 (3.5%) 16 (3.7%) 3.6 (1.1–12.2) c
Miners only 161 (22.2%) 1 (0.6%) 8 (4.9%) 9 (5.6%) 5.4 (1.5–19.7) c
Family/household member of minerd 138 (19.1%) 0 4 (2.9%) 4 (2.9%) 2.8 (0.64–12.4)
Non-miners within 50 km of Kitaka mine b 134 (18.5%) 0 3 (2.2%) 3 (2.2%) 2.2 (0.44–10.6)
  1. aAll other groups (exposure groups) were compared to the unexposed group as control
  2. bSeropositivity among people who live within 50 km of Kitaka cave was not significantly different from miners or their family members
  3. cStatistically significant
  4. dOne person seropositive for SUDV in this exposure group was also seropositive for Bundibugyo virus