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Table 5 Difference in the number of days from infection to confirmed positive test result between the two antigen tests (PetChek® versus DiroCHEK®) within dogs infected with the JYD-34 heartworm isolate

From: Evaluation of Dirofilaria immitis antigen detection comparing heated and unheated serum in dogs with experimental heartworm infections

Serum Tested

Difference in # Days from Infection to Positive Resulta

PetChek® – DiroCHEK®

p-value

N

Mean (days)

SDb

Min

Max

95% CIc

L d

U d

Heated

7

˗2.1

7.7

˗16

5

˗9.3

5.0

0.4888

Unheated

7

˗0.9

5.1

˗7

8

˗5.6

3.9

0.6729

  1. aBig Head™ isolate data only were used for this analysis
  2. b SD standard deviation
  3. c95% CI = 95% Confidence Interval around the mean difference
  4. d L lower bound of 95% confidence interval, U upper bound of 95% confidence interval