Table 2.
Comparisons of Patient and Medical Encounter (Visit) Characteristics between Respondents and Non-Respondents1
| Respondents (n=8355) |
Non-Respondents (n=28202) |
|
|---|---|---|
|
| ||
| Patient Characteristics | ||
|
| ||
| Age in Years, Mean (SD) | 57.1 (17.5) | 47.8 (18.1) |
|
| ||
| Charlson Score (0-11 high), Mean (SD) | 0.5 (1.1) | 0.8 (1.5) |
|
| ||
| Charlson Group, no. (%) | ||
| 0 (Charlson Score=0) | 5937 (71.8) | 15225 (59.0) |
| 1 (Charlson Score=1) | 1343 (16.2) | 5527 (21.4) |
| 2 (Charlson Score=2) | 555 (6.7) | 2390 (9.3) |
| 3 (Charlson Score>2) | 436 (5.3) | 2661(10.3) |
|
| ||
| Gender, no. (%) | ||
| Male | 3014 (36.1) | 10705 (38.0) |
| Female | 5341 (63.9) | 17497 (62.0) |
|
| ||
| Race/Ethnicity, no. (%) | ||
| Non-Hispanic White | 5593 (66.9) | 15486 (54.9) |
| Non-Hispanic Black | 2023 (24.2) | 10070 (35.7) |
| Other | 739 (8.9) | 2646 (9.4) |
|
| ||
| Place of Residence in Low-Income Zip Code2, no. (%) | ||
| Yes | 1286 (15.4) | 5545 (19.7) |
| No | 7069 (84.6) | 22657 (80.3) |
|
| ||
| Insurance type, no. (%) | ||
| Private | 6062 (72.6) | 22492 (80.1) |
| Medicare | 1774 (21.2) | 2439 (8.7) |
| Medicaid | 445 (5.3) | 2982 (10.6) |
| Self-Pay | 74 (0.9) | 155 (0.6) |
|
| ||
| Medical Encounter (Visit) Characteristics | ||
|
| ||
| Provider Type, no. (%) | ||
| Physician | 6862 (82.1) | 22244 (79.4) |
| Resident | 616 (7.4) | 4211 (15.0) |
| Nurse Practitioner/Physician Assistant | 832 (10.0) | 1522 (5.4) |
| Other (e.g. pharmacist, social worker) | 45 (0.5) | 28 (0.1) |
|
| ||
| Practice Number of Providers, Mean (SD)4 | 9.8 (3.5) | 10.1 (3.3) |
|
| ||
| Practice Number of Patients, Mean (SD)4 | 12977.7 (4732.8) | 13322.8 (4749.4) |
|
| ||
| Practice Type, no. (%)3 | ||
| Suburban | 5049 (60.4) | 15818 (56.1) |
| Urban | 3306 (39.6) | 12384 (43.9) |
1
p<0.05 in all comparisons
2
Low income zip codes specifically in West Philadelphia, the area surrounding the University of Pennsylvania versus all other zip codes
3
Type of practice where medical encounter occurred (University-affiliated suburban practices versus University urban practices)
4
Size characteristics of practice attended by patient (respondent or non-respondent)