Table 2.

Prevalence of antibodies to Anaplasma in different variables

Type	Description	No. of samples tested	Apparent prevalence		True prevalence		p value
			% positivity	95% CI	% positivity	95% CI
Species	Cattle	667	51.42	47.63–55.20	51.58	47.37–55.78	0.011
	Buffalo	244	41.80	35.79–48.07	40.89	34.21–47.86
Cattle breed-type	Indigenous	107	58.87	49.41–67.74	59.30	48.91–69.01	< 0.001
	Cross breed	274	56.93	51.02–62.66	57.16	50.67–63.44
	Exotic	286	43.35	37.74–49.15	42.28	36.12–48.63
Sex	Male	560	46.79	42.69–50.93	46.43	41.88–51.03	0.118
	Female	351	52.14	46.92–57.31	52.37	46.57–58.12
Climatic zone	Humid sub-tropical	215	60.47	53.80-66.76	61.63	54.22–68.62	< 0.001
	Tropical wet and dry	323	50.77	45.34–56.18	50.86	44.83–56.87
	Semi-arid	314	31.85	26.94–37.19	29.83	24.38–35.77
	Arid	59	86.44	75.46–92.97	90.49	78.29–97.74
Total	–	911	48.85	45.61–52.09	48.72	45.13–52.32