Table 2: Result of regression analysis of mortality data in topical bioassay.

Mortality type Variable Parameter estimated (SE) 95% CL t Value P Value
24 h Intercept 116.25 (10.41) 95.68-136.83 11.7 < 0.001
HLB number -8.65 (0.98) -10.59 - -6.71 -8.85 < 0.001
48 h Intercept 166.96 (17.99) 131.03 -202.89 9.28 < 0.001
HLB number -11.87 (1.69) -15.25 - -8.50 -7.02 < 0.001

r2 was 0.37 and 0.43 for 24 h and 48 h mortality respectively.