Table 2.
Odds* of cancer screening for primary care patients by electronic health record and e-reminder, stratified by race
| Overall | No EHR | EHR | No E-reminder | E-reminder | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| % Screened | aOR* (95% CI) | % Screened | aOR* (95% CI) | % Screened | aOR* (95% CI) | % Screened | aOR* (95% CI) | % Screened | aOR* (95% CI) | |
| Breast cancer† | ||||||||||
| All | 9.0 | 9.2 | Ref | 8.9 | 0.96 (0.8 to 1.2) | 8.7 | Ref | 9.0 | 1.1 (0.8 to 1.4) | |
| White | 8.9 | Ref‡ | 9.0 | Ref | 8.7 | Ref | 8.3 | Ref | 9.0 | Ref |
| Non-white | 9.7 | 1.1 (0.9 to 1.4) | 9.7 | 1.2 (0.9 to 1.5) | 9.7 | 1.1 (0.8 to 1.4) | 11.0 | 1.3 (0.8 to 2.2) | 8.9 | 0.98 (0.7 to 1.3) |
| Interaction§ | 0.63 | 0.39 | ||||||||
| Cervical cancer¶ | ||||||||||
| All | 12.1 | 12.6 | Ref | 11.5 | 1.1 (0.9 to 1.3) | 10.3 | Ref | 12.3 | 0.9 (0.7 to 1.1) | |
| White | 11.8 | Ref | 12.4 | Ref | 11.1 | Ref | 9.9 | Ref | 11.9 | Ref |
| Non-white | 13.3 | 1.2 (0.99 to 1.3) | 13.4 | 1.1 (0.95 to 1.4) | 13.1 | 1.2 (0.9 to 1.5) | 11.9 | 1.2 (0.7 to 1.9) | 13.8 | 1.2 (0.9 to 1.5) |
| Interaction§ | 0.75 | 0.98 | ||||||||
| Colon cancer** | ||||||||||
| All | 2.3 | 2.2 | Ref | 2.5 | 0.9 (0.7 to 1.1) | 2.4 | Ref | 2.6 | 0.98 (0.7 to 1.4) | |
| White | 2.2 | Ref | 2.2 | Ref | 2.2 | Ref | 2.2 | Ref | 2.2 | Ref |
| Non-white | 3.0 | 1.5 (1.1 to 2.0) | 2.3 | 1.2 (0.8 to 1.7) | 3.8 | 1.8 (1.1 to 2.8) | 3.3 | 1.5 (0.9 to 2.7) | 4.1 | 2.1 (1.2 to 3.7) |
| Interaction§ | 0.17 | 0.46 | ||||||||
*aOR=adjusted OR. Adjusted for patient age, patient income, reason for visit, new/established patient, expected payment source, and region of the country. Note that percentages are unadjusted.
†Breast cancer—N=45 380 sample records (represents 851 million estimated visits). Included women, age 40–75 years, without a history of breast carcinoma, abnormal mammogram, or current breast lump.
‡Ref=reference group.
§Interaction p value is for the difference in ORs between white and non-white patients, when either EHRs or e-reminders were used.
¶Cervical cancer—N=73 348 sample records (represents 1.2 billion estimated visits). Included women, age 21–65 years, without a history of genital tract carcinoma.
**Colon cancer—N=50 955 sample records (represents 1 billion estimated visits). Included women and men, age 50–75 years, without a history of gastrointestinal tract cancers.
EHR, electronic health record.