Table 2.
Multivariable analysis for predictors for pregnancy diagnosis by means of ultrasonographic examination in sheep and goat farms in Greece.
| Variables | Odds Ratio 1 (95% Confidence Intervals) |
p-Value |
|---|---|---|
| Sheep Flocks | ||
| Management system applied in farms | <0.0001 | |
| Intensive or semi-intensive (90/184 = 48.9% 2) | 3.700 (2.242–6.099) | <0.0001 |
| Semi-extensive or extensive (29/141 = 20.6%) | reference | - |
| Age of farmer | 0.005 | |
| ≤50 years (91/197 = 46.2%) | 3.066 (1.852–5.076) | <0.0001 |
| >50 years (28/128 = 21.9%) | reference | - |
| Farming tradition in the family | 0.041 | |
| Yes (90/283 = 31.8%) | reference | - |
| No (29/42 = 69.0%) | 4.784 (2.375–9.637) | <0.0001 |
| Goat Herds | ||
| Management system applied in farms | 0.011 | |
| Intensive or semi-intensive (12/38 = 31.6%) | 4.212 (1.549–11.452) | 0.005 |
| Semi-extensive or extensive (8/81 = 9.9%) | reference | - |
| Availability of milking parlour | 0.044 | |
| Yes (18/66 = 27.3%) | 9.563 (2.106–43.423) | 0.003 |
| No (2/53 = 3.8%) | reference | - |
1 Odds ratios calculated against the lowest prevalence associations of the variable. 2 Numerator: no. of farms among those included in the denominator, in which the outcome of interest was seen; denominator: no. of farms in which the studied variable prevailed.