Coxiella burnetii and its risk factors in cattle in Egypt: a seroepidemiological survey

BMC Veterinary Research

Table 1 Univariable analysis of associated variables for C. burnetii seropositivity in cattle from Egypt's Nile delta

variable	No of tested samples	No of positive	No of Negative	% of positive	95%CI	Statistic
Governorates
Gharbia	120	21	99	17.5	11.74–25.28	χ2 = 2.664 df = 3 P = 0.446
Kafr ElSheikh	120	25	95	20.8	14.53–28.94
Menofia	120	20	100	16.7	11.06–24.35
Qalyubia	120	29	91	24.2	17.39–32.55
Sex
Male	110	17	93	15.5	9.88–23.36	χ2 = 1.691 df = 1 P = 0.193
Female	370	78	292	21.1	17.23–25.52	χ2 = 1.691 df = 1 P = 0.193
Age
2–5	140	16	124	11.4	7.16–17.76	χ2 = 10.011 df = 2 P = 0.007*
> 5–8	215	54	161	25.1	19.79–31.32
> 8	125	25	100	20.0	13.93–27.86
Communal grazing area
No	150	21	129	14.0	9.34–20.46	χ2 = 4.610 df = 1 P = 0.032*
Yes	330	74	256	22.4	18.25–27.22	χ2 = 4.610 df = 1 P = 0.032*
Shared watering points
No	120	16	104	13.3	8.37–20.56	χ2 = 4.204 df = 1 P = 0.040*
Yes	360	79	281	21.9	17.97–26.5	χ2 = 4.204 df = 1 P = 0.040*
Presence of small ruminants
No	210	25	185	11.9	8.19–16.98	χ2 = 14.629 df = 1 P < 0.0001*
Yes	270	70	200	25.9	21.07–31.47	χ2 = 14.629 df = 1 P < 0.0001*
History of abortion in previous year
No	435	84	351	19.3	15.88–23.28	χ2 = 0.699 df = 1 P = 0.411
yes	45	11	34	24.4	14.23–38.67	χ2 = 0.699 df = 1 P = 0.411
History of infertility in previous year
No	424	76	348	17.9	14.56–21.85	χ2 = 7.981 df = 1 P = 0.005*
Yes	56	19	37	33.9	22.92–47	χ2 = 7.981 df = 1 P = 0.005*
Total	480	95	385	19.8	16.47–23.59

ISSN: 1746-6148