Table 5: Predictors of up-to-date CRC screening, overall and stratified by provinces with and without CRC screening programs in 2012 (multivariable logistic regression analysis).
| OR (95% CI) |
|||
|---|---|---|---|
| Variable | All provinces | Provinces with screening programs* | Provinces without screening programs |
|
Age, yr |
|||
| 50–54 |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| 55–59 |
1.70 (1.57–1.84) |
1.78 (1.59–2.00) |
1.64 (1.47–1.83) |
| 60–64 |
2.21 (2.03–2.40) |
2.67 (2.35–3.03) |
1.92 (1.72–2.16) |
| 65–69 |
2.33 (2.12–2.56) |
2.97 (2.57–3.43) |
1.96 (1.72–2.22) |
| 70–74 |
2.67 (2.40–2.98) |
3.08 (2.61–3.64) |
2.37 (2.05–2.74) |
|
Sex |
|||
| Female |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Male |
1.02 (0.96–1.09) |
0.91 (0.83–0.99) |
1.12 (1.04–1.22) |
|
Income, $ |
|||
| < 20 000 |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| 20 000–39 000 |
1.01 (0.90–1.15) |
1.07 (0.89–1.30) |
0.99 (0.84–1.16) |
| 40 000–59 999 |
1.17 (1.04–1.33) |
1.25 (1.03–1.52) |
1.15 (0.98–1.36) |
| 60 000–79 999 |
1.11 (0.98–1.27) |
1.33 (1.09–1.62) |
1.01 (0.85–1.20) |
| ≥ 80 000 |
1.50 (1.33–1.70) |
1.75 (1.45–2.12) |
1.38 (1.17–1.62) |
|
Marital status |
|||
| Married |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Common-law |
0.84 (0.76–0.94) |
1.16 (0.97–1.40) |
0.72 (0.64–0.82) |
| Widowed/separated/divorced |
0.90 (0.83–0.98) |
0.96 (0.85–1.09) |
0.86 (0.77–0.96) |
| Single (never married) |
0.94 (0.84–1.06) |
1.23 (1.02–1.48) |
0.80 (0.69–0.92) |
|
Obesity |
|||
| Underweight/normal |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Overweight |
1.08 (1.00–1.17) |
0.98 (0.87–1.10) |
1.19 (1.07–1.33) |
| Obese |
0.89 (0.82–0.96) |
0.83 (0.74–0.93) |
0.94 (0.85–1.05) |
|
Smoking |
|||
| Daily |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Occasional/former |
1.81 (1.67–1.96) |
1.78 (1.58–2.01) |
1.83 (1.64–2.03) |
| Never smoked |
1.55 (1.42–1.69) |
1.42 (1.25–1.61) |
1.66 (1.47–1.88) |
|
Diabetes |
|||
| No |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Yes |
0.91(0.83–1.01) |
0.79(0.69–0.91) |
1.01(0.89–1.15) |
|
Physical examination |
|||
| No regular pattern |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| At least once annually |
0.47 (0.44–0.50) |
0.41 (0.38,0.45) |
0.51 (0.47,0.55) |
|
Self-described general medical status |
|||
| Poor |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Fair |
0.78 (0.65–0.94) |
0.76 (0.58–0.99) |
0.74 (0.57–0.97) |
| Good |
0.74 (0.62–0.89) |
0.73 (0.57–0.94) |
0.73 (0.56–0.93) |
| Very good |
0.72 (0.60–0.86) |
0.79 (0.61–1.02) |
0.64 (0.49–0.82) |
| Excellent |
0.75 (0.62–0.90) |
0.74 (0.56–0.98) |
0.71 (0.54–0.92) |
|
Restriction of activities |
|||
| Sometimes |
1.00 (ref) |
1.00 (ref) |
1.00 (ref) |
| Often |
1.05 (0.94–1.16) |
1.22 (1.04–1.43) |
0.94 (0.82–1.08) |
| Never |
0.83 (0.77–0.90) |
1.04 (0.93–1.17) |
0.70 (0.63–0.78) |
|
Province |
|||
| With screening programs |
1.91 (1.80–2.02) |
– |
– |
| Without screening programs | 1.00 (ref) | – | – |
Note: CI = confidence interval, CRC = colorectal cancer. *Nova Scotia, Ontario, Manitoba and Saskatchewan.