Proportion of 1 886 791 patients who received a preventive intervention, according to whether their physician received or did not receive a corresponding preventive intervention
| Receipt of intervention by eligible physicians | Mean % of eligible patients who received intervention | |||||||
|---|---|---|---|---|---|---|---|---|
| Mammogram | Colorectal cancer screening | LDL measurement | Blood pressure measurement | Pneumococcal vaccine | Influenza vaccine | |||
| Every 5 yr if age 20–40 yr | Every 2 yr if age 41–54 yr | Every year if age ≥ 55 yr | ||||||
| Mammogram | ||||||||
| Yes (n = 231, 67.0%) | 69.5 | 49.2 | 83.3 | 84.3 | 81.5 | 77.8 | 57.3 | 44.5 |
| No (n = 114, 33.0%) | 66.7 | 45.4 | 82.2 | 82.9 | 79.7 | 76.5 | 52.9 | 40.6 |
| p value* | 0.002† | < 0.001‡ | 0.1 | 0.2 | 0.1 | 0.2 | 0.002‡ | 0.003‡ |
| Colorectal cancer screening | ||||||||
| Yes (n = 502, 60.9%) | 68.4 | 50.0 | 83.2 | 82.8 | 81.7 | 78.4 | 59.8 | 47.6 |
| No (n = 322, 39.1%) | 66.1 | 45.6 | 81.3 | 82.3 | 81.2 | 77.0 | 58.1 | 45.0 |
| p value* | < 0.001‡ | < 0.001† | < 0.001‡ | 0.5 | 0.5 | 0.06 | 0.08 | 0.007‡ |
| LDL measurement | ||||||||
| Yes (n = 602, 88.7%) | 67.8 | 48.1 | 83.1 | 82.7 | 81.4 | 77.3 | 59.0 | 46.3 |
| No (n = 77, 11.3%) | 64.9 | 47.4 | 81.2 | 83.4 | 81.6 | 77.0 | 59.3 | 47.0 |
| p value* | 0.01‡ | 0.6 | 0.02† | 0.6 | 0.8 | 0.8 | 0.8 | 0.9 |
| Blood pressure measurement every 5 yr if age 20–40 yr | ||||||||
| Yes (n = 118, 60.5%) | 66.2 | 47.1 | 82.2 | 83.7 | 82.2 | 78.3 | 59.6 | 45.4 |
| No (n = 51, 39.5%) | 67.5 | 48.8 | 83.5 | 80.9 | 79.6 | 73.2 | 58.0 | 46.1 |
| p value* | 0.4 | 0.2 | 0.2 | 0.04† | 0.1 | 0.004‡ | 0.4 | 0.8 |
| Blood pressure measurement every 2 yr if age 41–54 yr | ||||||||
| Yes (n = 371, 73.2%) | 67.1 | 47.7 | 82.9 | 83.5 | 82.6 | 78.4 | 59.0 | 46.4 |
| No (n = 136, 26.8%) | 68.6 | 48.9 | 82.8 | 82.7 | 80.7 | 76.5 | 58.8 | 47.0 |
| p value* | 0.07 | 0.2 | 0.8 | 0.4 | 0.04† | 0.03† | 0.8 | 0.7 |
| Blood pressure measurement every year if age ≥ 55 yr | ||||||||
| Yes (n = 194, 66.2%) | 67.1 | 47.3 | 82.1 | 83.5 | 81.9 | 78.3 | 59.6 | 44.6 |
| No (n = 99, 33.8%) | 67.1 | 46.3 | 82.0 | 78.5 | 76.8 | 73.8 | 57.7 | 45.7 |
| p value* | 0.9 | 0.4 | 0.8 | 0.003‡ | < 0.001‡ | < 0.001† | 0.2 | 0.5 |
| Pneumococcal vaccine | ||||||||
| Yes (n = 101, 44.5%) | 66.5 | 48.8 | 81.6 | 83.7 | 84.3 | 80.4 | 62.1 | 49.0 |
| No (n = 126, 55.5%) | 66.5 | 47.1 | 80.7 | 81.4 | 80.3 | 76.4 | 56.6 | 45.1 |
| p value* | 0.9 | 0.2 | 0.4 | 0.2 | 0.01‡ | 0.005‡ | 0.004† | 0.03‡ |
| Influenza vaccine | ||||||||
| Yes (n = 735, 51.2%) | 67.2 | 48.2 | 82.8 | 82.9 | 82.0 | 78.0 | 60.9 | 49.1 |
| No (n = 701, 48.8%) | 67.1 | 46.1 | 81.9 | 82.8 | 81.0 | 77.0 | 56.8 | 43.2 |
| p value* | 0.8 | < 0.001‡ | 0.01‡ | 0.9 | 0.07 | 0.04‡ | < 0.001‡ | < 0.001† |
Note: LDL = low-density lipoprotein.
↵* Calculated using the χ2 test.
↵† p value for comparison of identical patient and doctor preventive interventions (e.g., % of eligible patients having a mammogram v. % of their physicians who had a mammogram), indicating a patient’s likelihood of receiving the intervention depending on whether or not the patient’s doctor had received the same intervention.
↵‡ p < 0.05 for comparison of nonidentical patient and doctor preventive interventions (e.g., % of eligible patients having a mammogram v. % of their doctors who underwent colorectal cancer screening), indicating the likelihood of a patient receiving the intervention depending on whether or not the patient’s doctor had received the comparison intervention.