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Table 1 Prevalence rates, mean eggs per gram (EPG) value and mean intensity (MI) of EPG reported for different age groups and their statistical analysis (P-value < 0.001)

From: Parascaris spp. eggs in horses of Italy: a large-scale epidemiological analysis of the egg excretion and conditioning factors

Age groups (year) Examined Prevalence % Odds ratio (95% CI) Mean EPG (SD) MI EPG (SD)
< 1 128 36.7 1.00 (0.67–1.49) 546.0 (1978.0) 1486.6 (3061.6)
1 365 17.3 0.36 (0.27–0.48) 45.5 (171.9) 263.3 (339.5)
2 339 10.9 0.21 (0.15–0.30) 9.9 (39.2) 90.8 (82.9)
3 351 14.5 0.29 (0.21–0.40) 54.5 (229.5) 375.1 (495.9)
4–5 565 7.8 0.15 (0.11–0.21) 18.8 (130.2) 241.0 (409.4)
6–10 1447 3.0 0.05 (0.04–0.07) 15.4 (204.9) 505.5 (1076.5)
> 10 1870 1.2 0.02 (0.01–0.03) 10.7 (216.8) 908.2 (1824.5)
  1. EPG: eggs per gram; MI: mean intensity; SD: standard deviation; 95% CI: 95% confidence interval