Variable | No of examined camels | No of test positives | No of negative | % of positive | 95%CI | χ2statistic & p-value |
---|---|---|---|---|---|---|
Locality | ||||||
Qalyubia | 85 | 9 | 76 | 10.6 | 5.6–18.9 | 32.844 d = 3 P < 0.0001* |
Kafr ElSheikh | 75 | 11 | 64 | 14.7 | 8.3–24.3 | |
Mersa matrouh | 120 | 31 | 89 | 25.8 | 18.8–34.3 | |
Aswan | 120 | 51 | 69 | 42.5 | 34–51.4 | |
Age | ||||||
≤ 2 | 50 | 14 | 36 | 28.0 | 17.4–41-6 | 2.539 d = 2 P = 0.28 |
> 2–5 | 190 | 54 | 136 | 28.4 | 22.4–35.2 | |
> 5 | 160 | 34 | 126 | 21.3 | 15.6–28.2 | |
Sex | ||||||
Male | 180 | 29 | 151 | 16.1 | 11.4–22.2 | 15.186 d = 1 P < 0.0001* |
Female | 220 | 73 | 147 | 33.2 | 12.5–22.3 | |
Herd size | ||||||
≤ 50 | 240 | 57 | 183 | 23.8 | 18.8–29.5 | 0.967 d = 1 P = 0.32 |
≥ 51 | 160 | 45 | 115 | 28.1 | 21.7–35.5 | |
Season | ||||||
Autumn | 84 | 25 | 59 | 29.8 | 21–40.3 | 24.322 d = 3 P < 0.0001* |
Summer | 138 | 52 | 86 | 37.7 | 30–46 | |
Winter | 85 | 10 | 75 | 11.8 | 6.5–20.3 | |
Spring | 93 | 15 | 78 | 16.1 | 10–24.9 | |
Insect presence | ||||||
Yes | 290 | 85 | 205 | 29.3 | 24.3–34.8 | 8.059 d = 1 P = 0.005* |
No | 110 | 17 | 93 | 15.5 | 9.8–23.4 | |
Total | 400 | 102 | 298 | 25.5 | 21.4–29.9 |