Results of logistic regression analysis of characteristics associated with perceived efficacy of mammography screening in a random sample of women of ages 40–80 years residing in Geneva, Switzerland
| Had no opinion about mammography efficacy versus Had an opinion aOR (95% CI) | Overestimate versus Realistic estimate aOR (95% CI) | |||
| Have had a mammogram in the past two years | p=0.009 | p=61 | ||
| No | 1.0 | 1.0 | ||
| Yes | 0.57 (0.39, 0.87) | 1.1 (0.73, 1.7) | ||
| Visit to a gynaecologist during the past year | p=0.02 | p=0.76 | ||
| No | 1.0 | 1.0 | ||
| Yes | 0.60 (0.39, 0.91) | 1.1 (0.63, 1.9) | ||
| Subjective risk of breast cancer as compared with other women | p<0.001 | p=0.04 | ||
| Lower | 1.0 | 1.0 | ||
| Similar | 0.98 (0.57, 1.7) | 1.1 (0.64, 1.9) | ||
| Higher | 0.47 (0.15, 1.5) | 6.1 (1.7, 21.6) | ||
| No opinion | 2.6 (1.5, 4.5) | 1.1 (0.60, 2.0) | ||
| Age (y) | p=0.04 | p=0.36 | ||
| 40–49 | 1.0 | 1.0 | ||
| 50–69 | 0.80 (0.54, 1.2) | 1.1 (0.71, 1.7) | ||
| 70–80 | 1.5 (0.89, 2.6) | 0.69 (0.35, 1.4) | ||
| Citizenship | p=0.52 | p=0.001 | ||
| Swiss | 1.0 | 1.0 | ||
| Other | 1.1 (0.77, 1.7) | 0.50 (0.33, 0.77) | ||
aOR = adjusted odds ratio; CI = confidence intervals.