Table 1. CE prevalence by sex and age, in cattle slaughtered Santiago, Chile.

		Examined	Infected	Prevalence % [CI95%]	χ2	p
Overall		2961	558	18.84 [17.45–20.30]
Age range
<4 years		2213	307	13.87 [12.46–15.38]	141.6	<0.0001*
>4 years		748	251	33.56 [30.18–37.07]
Sex
Female		471	131	27.81 [23.81–32.1]	29.45	< 0.0001*
Male		2490	427	17.15 [15.69–18.69]
Sex in each age range
<4 years:	Female	132	18	13.64 [8.29–20.69]a	0.0066	0.9355
	Male	2081	289	13.89 [12.43–15.49]b
>4 years:	Female	339	113	33.33 [28.33–38.5]a	0.01381	0.9065
	Male	409	138	33.74 [29.19–38.5]b

Results expressed as absolute or relative (%) frequencies.

CI: Confidence interval

*: statistically significant difference (p<0,05)

a: Significant difference between females of different age range (χ2 = 18.36; p< 0.0001)

b: Significant difference between males of different age range (χ2 = 94.83; p<0.0001)