Table 2.
Multivariate logistic regression analysis using Generalized Estimating Equations for the characteristics of participants and physicians associated with completing an FOBT within 6 months of the mailing date
| OR (95% CI) | p Value | |
|---|---|---|
| Participants | ||
| Age group, years | ||
| 50–59 | 0.6 (0.5 to 0.8) | <0.0001 |
| 60–69 | 0.8 (0.7 to 1.0) | NS |
| 70–74 | Reference | NA |
| Sex | ||
| Female | 0.9 (0.9 to 1.0) | NS |
| Male | Reference | NA |
| Comorbidity*, Number of ADGs | ||
| 0 | 0.7 (0.6 to 0.8) | 0.0002 |
| 1–2 | 0.9 (0.7 to 1.0) | NS |
| 3–4 | 1.0 (0.9 to 1.2) | NS |
| 5–6 | 1.0 (0.9 to 1.2) | NS |
| 7+ | Reference | NA |
| Median neighbourhood income quintile | ||
| Rural | 0.9 (0.7 to 1.1) | NS |
| Low urban | 0.9 (0.7 to 1.0) | NS |
| 2 | 1.0 (0.8 to 1.1) | NS |
| 3 | 1.0 (0.9 to 1.1) | NS |
| 4 | 0.9 (0.8 to 1.1) | NS |
| High urban | Reference | NA |
| Health region | ||
| Erie St Clair | 1.3 (0.9 to 1.8) | NS |
| South West | 0.9 (0.6 to 1.4) | NS |
| Waterloo Wellington | 0.8 (0.6 to 1.2) | NS |
| Hamilton Niagara | 0.9 (0.6 to 1.2) | NS |
| Central West | 1.0 (0.7 to 1.4) | NS |
| Mississauga Halton | 0.6 (0.3 to 1.2) | NS |
| Toronto Central | 0.8 (0.6 to 1.2) | NS |
| Central | 0.5 (0.4 to 0.7) | 0.0004 |
| South East | 0.8 (0.5 to 1.3) | NS |
| Champlain | 1.0 (0.7 to 1.4) | NS |
| North Simcoe-Muskoka | 0.9 (0.6 to 1.4) | NS |
| North East | 1.1 (0.7 to 1.5) | NS |
| North West | 0.7 (0.5 to 1.0) | 0.03 |
| Central East | Reference | NA |
| Recency of immigration | ||
| Remote or non-immigrant | 1.0 (0.6 to 1.6) | NS |
| Recent immigrant | Reference | NA |
| Prior FOBT use | ||
| 2–5 years prior to mailing | 2.8 (2.5 to 3.3) | <0.0001 |
| >5 years or never | Reference | |
| Physician | ||
| Increasing age (per year) | 1.0 (1.0 to 1.0) | NS |
| Sex | ||
| Female | 1.3 (1.0 to 1.5) | 0.02 |
| Male | Reference | NA |
| Training location | ||
| In Canada | 0.9 (0.7 to 1.2) | NS |
| Outside Canada | Reference | NA |
| Practice type | ||
| FHG | 0.9 (0.7 to 1.1) | NS |
| FHO/FHN | 0.8 (0.6 to 1.1) | NS |
| Other PEM | 0.7 (0.4 to 1.0) | 0.05 |
| FHO/FHN-FHT | Reference | NA |
| Practice size (enrolled patients) | ||
| ≤1800 patients | 1.1 (0.9 to 1.3) | NS |
| >1800 patients | Reference | NA |
| Age-eligible rate of colonoscopy quintile | ||
| Low | 1.1 (0.8 to 1.5) | NS |
| 2 | 1.2 (1.0 to 1.6) | NS |
| 3 | 1.0 (0.8 to 1.2) | NS |
| 4 | 1.0 (0.8 to 1.3) | NS |
| High | Reference | NA |
| Age-eligible rate of FOBT quintile | ||
| 2 | 0.9 (0.6 to 1.3) | NS |
| 3 | 0.9 (0.7 to 1.2) | NS |
| 4 | 1.1 (0.8 to 1.4) | NS |
| High | 0.9 (0.7 to 1.3) | NS |
| Low | Reference | NA |
| Age-eligible rate of annual physical examinations quintile | ||
| 2 | 1.4 (0.9 to 2.0) | NS |
| 3 | 1.3 (0.9 to 1.8) | NS |
| 4 | 1.3 (0.9 to 1.8) | NS |
| High | 1.1 (0.8 to 1.5) | NS |
| Low | Reference | NA |
| Age-eligible rate of influenza vaccine quintile | ||
| 2 | 1.0 (0.8 to 1.2) | NS |
| 3 | 0.8 (0.6 to 1.0) | 0.02 |
| 4 | 0.9 (0.7 to 1.2) | NS |
| High | 1.3 (1.0 to 1.7) | NS |
| Low | Reference | NA |
*Comorbidity scored using number of ADGs using the Johns Hopkins Case Mix System.
ADGs, Aggregated Diagnosis Groups; FHG, family health group; FHO/FHN, family health organisations or networks; FHT, family health team; FOBT, faecal occult blood test; NA, not applicable; NS, not significant; Other PEM, other patient enrolled model of care.