Table 4

Results of Poisson regression analysis for the full study

dfβSEPb
Intercept1−9.44921.2787
Nylon vs. control1−0.51530.2141P < 0.020.59
Sari vs. control1−0.65330.2269P < 0.0010.52
Log (h2000 + 0.5)10.02410.1627NS
Time on study, months10.17230.0687P < 0.02
  • Log (village size) was used as offset variable. Deviance statistic, 1.425; test statistics were adjusted for overdispersion. h2000 is the historic cholera rate for 2000. Results were similar when 1999 values were used. No significant differences were found between nylon and sari (P > 0.3).