Risk factors | Cows examine | Uterine infection | χ2 | p-value | ||
---|---|---|---|---|---|---|
Frequency | Proportion | |||||
RFM | Absent | 185 | 8 | 4.32 | 120.58 | 0.000 |
Present | 51 | 37 | 72.54 | |||
Dystocia | Absent | 204 | 28 | 13.7 | 27.82 | 0.000 |
Present | 32 | 17 | 53.12 | |||
Abortion | Absent | 215 | 36 | 16.74 | 8.45 | 0.004 |
Present | 21 | 9 | 42.86 | |||
Milk fever | Absent | 230 | 42 | 18.26 | 3.82 | 0.051 |
Present | 6 | 3 | 50 | |||
VP | Absent | 234 | 44 | 18.8 | 1.25 | 0.263 |
Present | 2 | 1 | 50 |