Results of multivariate logistic regression analysis of fine-needle aspiration biopsy compared with image-guided biopsy
| Variable | OR (95% CI) | Estimate | SE | p value |
|---|---|---|---|---|
| LHIN | ||||
| Central | 1.00 | |||
| Central East | 1.19 (0.83–1.71) | 0.177 | 0.185 | 0.34 |
| Central West | 1.47 (0.93–2.32) | 0.385 | 0.232 | 0.10 |
| Champlain | 2.51 (1.60–3.94) | 0.920 | 0.231 | < 0.001 |
| Erie St. Clair | 3.81 (2.38–6.10) | 1.339 | 0.240 | < 0.001 |
| Hamilton Niagara | 1.34 (0.94–1.92) | 0.294 | 0.182 | 0.11 |
| Mississauga Halton | 0.79 (0.52–1.21) | −0.234 | 0.217 | 0.28 |
| Northeast | 0.11 (0.05–0.26) | −2.187 | 0.422 | < 0.001 |
| North Simcoe Muskoka | 7.26 (4.11–12.83) | 1.982 | 0.291 | < 0.001 |
| Northwest | 0.05 (0.01–0.44) | −2.918 | 1.064 | 0.006 |
| Southwest | 4.56 (3.09–6.72) | 1.517 | 0.198 | < 0.001 |
| Toronto Central | 0.82 (0.55–1.20) | −0.204 | 0.198 | 0.30 |
| Waterloo Wellington | 0.12 (0.05–0.29) | −2.125 | 0.447 | < 0.001 |
| Income quintile | ||||
| 1 | 1.00 | |||
| 2 | 0.99 (0.72–1.35) | −0.011 | 0.159 | 0.95 |
| 3 | 1.13 (0.83–1.55) | 0.126 | 0.160 | 0.43 |
| 4 | 1.36 (1.00–1.85) | 0.309 | 0.156 | 0.048 |
| 5 | 1.51 (1.13–2.03) | 0.414 | 0.151 | 0.006 |
| Cancer screening | ||||
| No | 1.00 | |||
| Yes | 1.56 (1.25–1.95) | 0.444 | 0.114 | < 0.001 |
| Breast consultation quintile | ||||
| 1 | 1.00 | |||
| 2 | 0.79 (0.55–1.14) | −0.234 | 0.187 | 0.21 |
| 3 | 0.74 (0.51–1.06) | −0.307 | 0.188 | 0.10 |
| 4 | 0.76 (0.52–1.10) | −0.278 | 0.189 | 0.14 |
| 5 | 0.52 (0.35–0.75) | −0.663 | 0.193 | < 0.001 |
| Radiologist image-guided biopsy quintile | ||||
| 1 | 1.00 | |||
| 2 | 1.36 (1.00–1.85) | 0.308 | 0.158 | 0.05 |
| 3 | 1.28 (0.95–1.74) | 0.250 | 0.156 | 0.11 |
| 4 | 1.99 (1.47–2.70) | 0.689 | 0.155 | < 0.001 |
| 5 | 3.61 (2.63–4.95) | 1.283 | 0.161 | < 0.001 |
CI = confidence interval; LHIN = local health integration network; OR = odds ratio; SE = standard error.