Table 2.

Unpaired t-test results for groups and subgroups of cows. The two-tailed P values with a 95% confidence interval. WBC RI (the WBC reference interval) has been measured in WBC/µL. BLV -, BLV +, BLV+ I, BLV+ I/II, and BLV+ II areas in Table 1 and Figure 1. BLV- and BLV + status has been determined by both serology (AGID) for BLV antibody, and PCR detection of proviral BLV DNA.

BLV – (N = 26) WBC RI is 5,906 ― 16,609
P ≤ 0.0001 This difference is considered to be extremely statistically significant.	BLV + (N = 16) WBC RI is 4,710 ― 29,322
	P = 0.1650 This difference is considered to be not statistically significant.	II BLV + (N = 3) WBC RI is 10,140 ― 35,146
	P = 0.5195 This difference is considered to be not statistically significant.	P = 0.3797 This difference is considered to be not statistically significant.	I/II BLV + (N = 7) WBC RI is 7,097 ― 30,540
P = 0.4768 This difference is considered to be not statistically significant.	P = 0.0730 This difference is considered to be not quite statistically significant.	P = 0.0054 This difference is considered to be very statistically significant.	P = 0.0223 This difference is considered to be statistically significant.	I BLV + (N = 6) WBC RI is 8,009 ― 16,191