Table 1. Distribution of individual characteristics of the study population by adherence to mammography.
| Variables | Non-adherent N = 6770 |
Partially Adherent N = 19092 | Fully Adherent N = 18456 | P-value |
|---|---|---|---|---|
| Patient Age | ||||
| 56–59 | 1976 (29.2%) | 5806 (30.4%) | 4957 (26.9) | |
| 60–64 | 2128 (31.4%) | 6230 (32.6%) | 6009 (26.9%) | |
| 65–69 | 1710 (25.3%) | 4643 (24.3%) | 5287 (28.6%) | <0.001 |
| 70–74 | 956 (14.1%) | 2413 (12.6%) | 2203 (11.9%) | |
| Marital Status | ||||
| Married | 2565 (37.9%) | 8023 (42%) | 8653 (46.9%) | |
| Divorced | 795 (11.7%) | 2317 (12.1%) | 2186 (11.8%) | <0.001 |
| Widow | 355 (5.2%) | 938 (4.9%) | 876 (4.7%) | |
| Single | 542 (8%) | 890 (4.7%) | 779 (4.2%) | |
| Missing | 2513 (37.1%) | 6924 (36.3%) | 5962 (32.3%) | |
| SES | ||||
| Low | 2515 (37.1%) | 6334 (33.2%) | 4552 (24.7%) | |
| Middle | 3350 (49.5%) | 10124 (53.0%) | 11129 (60.3%) | |
| High | 482 (7.2%) | 1492 (7.8%) | 1846 (10.0%) | <0.001 |
| Missing | 423 (6.2%) | 1142 (6.0%) | 929 (5.0%) | |
| Smoking | ||||
| Non smokers | 2999 (44.3%) | 10530 (55.2%) | 11591 (62.8%) | |
| Current smokers | 597 (8.8%) | 1812 (9.5%) | 1345 (7.3%) | <0.001 |
| Missing | 3174 (46.9%) | 6777 (35.5%) | 5520 (29.9%) | |
| BMI | ||||
| Underweight | 36 (0.5%) | 98 (0.5%) | 51 (0.3%) | |
| Normal | 711 (10.5%) | 2307 (12.1%) | 2292 (12.4%) | |
| Overweight | 838 (12.4%) | 3079 (16.1%) | 3115 (16.9%) | <0.001 |
| Obese | 964 (14.2%) | 3212 (16.8%) | 2650 (14.4%) | |
| Missing | 4221 (62.3%) | 10396 (54.5%) | 10308 (55.9%) | |
| Clinic Visits | ||||
| <30 | 2386 (37.1%) | 3113 (16.3%) | 1301 (7%) | |
| 31–60 | 1831 (28.4%) | 5939 (31.1%) | 5136 (27.8%) | <0.001 |
| >60 | 2222 (34.5%) | 10022 (52.5%) | 12018 (65.1%) | |
| DM | 1294 (19.1%) | 4548 (23.8%) | 4007 (21.7%) | <0.001 |
| IHD | 646 (9.5%) | 2893 (15.2%) | 2962 (16%) | <0.001 |
| Depression | 608 (9%) | 1844 (9.7%) | 1902 (10.3%) | <0.005 |
The number and percentage for each independent variable is shown for the dependent variable groups non-adherent, partially adherent and fully adherent. The p values represent the significance of the specific factor in univariate analysis.