Estimated crude odds ratios (95% confidence intervals) for injury to farm children by age group*
| Crude odds ratio for injury | |||
|---|---|---|---|
| Risk factor | 0–4 | 5–9 | 10–15 |
| *Includes only children who lived on current farm operation throughout risk period. Children with unknown age at injury or current age excluded. Those missing data for the risk factor of interest were excluded from the analysis in question. | |||
| Sex | |||
| Boy | 1.63 (1.29 to 2.07) | 2.28 (1.64 to 3.16) | 3.18 (1.95 to 5.18) |
| Girl | 1 | 1 | 1 |
| Parental status on farm | |||
| Both own/operate | 1.27 (0.99 to 1.62) | 0.98 (0.72 to 1.35) | 1.59 (0.98 to 2.58) |
| One or neither own/operate | 1 | 1 | 1 |
| Mother worked off-site | |||
| Yes | 0.89 (0.69 to 1.14) | 1.38 (1.02 to 1.87) | 0.91 (0.60 to 1.39) |
| No | 1 | 1 | 1 |
| Mother's highest education | |||
| Less than high school | 1 | 1 | 1 |
| High school graduate | 1.48 (0.99 to 2.20) | 1.09 (0.70 to 1.71) | 0.68 (0.38 to 1.21) |
| Some postsecondary | 1.70 (1.03 to 2.80) | 1.26 (0.69 to 2.31) | 2.24 (1.16 to 4.34) |
| Postsecondary graduate | 1.42 (0.95 to 2.11) | 1.10 (0.70 to 1.73) | 0.87 (0.49 to 1.56) |
| Father's highest education | |||
| Less than high school | 1 | 1 | 1 |
| High school graduate | 0.89 (0.66 to 1.21) | 1.15 (0.78 to 1.69) | 0.71 (0.40 to 1.27) |
| Some postsecondary | 0.90 (0.57 to 1.42) | 1.83 (1.09 to 3.09) | 1.46 (0.66 to 3.24) |
| Postsecondary graduate | 0.98 (0.72 to 1.34) | 0.91 (0.59 to 1.40) | 1.01 (0.58 to 1.74) |
| Acres of field crops | |||
| 0 | 1 | 1 | 1 |
| 1–90 | 1.24 (0.88 to 1.75) | 1.26 (0.83 to 1.91) | 1.31 (0.70 to 2.46) |
| 91–264 | 1.23 (0.87 to 1.72) | 1.08 (0.70 to 1.66) | 1.24 (0.66 to 2.33) |
| ≥265 | 0.95 (0.66 to 1.35) | 0.59 (0.36 to 0.97) | 1.04 (0.54 to 1.99) |
| Acres of fodder crops | |||
| 0 | 1 | 1 | 1 |
| 1–24 | 0.95 (0.54 to 1.66) | 1.25 (0.66 to 2.35) | 1.35 (0.59 to 3.11) |
| 25–126 | 1.50 (1.12 to 2.01) | 1.18 (0.80 to 1.74) | 0.78 (0.42 to 1.44) |
| ≥127 | 1.07 (0.78 to 1.47) | 1.03 (0.69 to 1.54) | 1.17 (0.68 to 2.00) |
| Poultry on farm | |||
| Yes | 1.01 (0.76 to 1.34) | 1.55 (1.10 to 2.19) | 1.30 (0.79 to 2.14) |
| No | 1 | 1 | 1 |
| No of beef cattle | |||
| 0 | 1 | 1 | 1 |
| 1–20 | 1.86 (1.25 to 2.77) | 1.66 (0.96 to 2.88) | 0.92 (0.32 to 2.59) |
| >20 | 1.26 (0.95 to 1.66) | 1.18 (0.82 to 1.70) | 1.04 (0.63 to 1.72) |
| No of dairy cattle | |||
| 0 | 1 | 1 | 1 |
| 1–60 | 1.25 (0.84 to 1.87) | 1.08 (0.62 to 1.89) | 0.92 (0.41 to 2.06) |
| >60 | 1.38 (1.05 to 1.81) | 1.41 (0.99 to 2.02) | 0.98 (0.56 to 1.70) |
| No of other livestock | |||
| 0 | 1 | 1 | 1 |
| 1–10 | 1.48 (0.99 to 2.21) | 1.70 (1.04 to 2.78) | 1.53 (0.73 to 3.20) |
| >10 | 1.18 (0.89 to 1.57) | 1.32 (0.92 to 1.89) | 1.61 (0.99 to 2.63) |