Table 2—
Cohort balance table for 1999: Ischemic Heart disease
| Acute Myocardial Infarction | Coronary Atherosclerosis | |||||
|---|---|---|---|---|---|---|
| Variable | Yes | No | p-value | Yes | No | p-value |
| Variables Included in the Model | ||||||
| Age | 77.5 | 77.4 | 0.37 | 77.0 | 77.1 | 0.71 |
| Male | 40.4% | 40.3% | 0.94 | 41.7% | 41.6% | 1.00 |
| Education (9th–12th) | 16.8% | 17.1% | 0.76 | 15.9% | 17.0% | 0.16 |
| Education (High school) | 28.4% | 28.3% | 0.90 | 29.6% | 28.7% | 0.35 |
| Education (Assoc./some College) | 19.9% | 19.8% | 0.92 | 22.0% | 21.2% | 0.40 |
| Education (College and Above) | 14.3% | 14.3% | 0.92 | 14.9% | 15.6% | 0.43 |
| Military service | 25.4% | 25.8% | 0.65 | 29.4% | 28.1% | 0.19 |
| Smoke now | 9.4% | 9.9% | 0.42 | 9.5% | 10.1% | 0.33 |
| Ever smoke | 54.2% | 54.3% | 0.93 | 58.4% | 57.9% | 0.68 |
| Race (Black) | 7.3% | 7.9% | 0.32 | 6.4% | 7.0% | 0.25 |
| Race (Hispanic) | 5.0% | 5.3% | 0.50 | 5.8% | 6.3% | 0.43 |
| Race (Other) | 2.8% | 2.7% | 0.77 | 4.6% | 4.8% | 0.64 |
| Marital status (Widowed) | 41.2% | 40.9% | 0.76 | 37.9% | 37.0% | 0.40 |
| Marital status (Divorced/Separated) | 6.4% | 6.4% | 0.94 | 7.1% | 7.3% | 0.73 |
| Marital status (Never married) | 4.5% | 4.4% | 0.77 | 4.8% | 3.9% | 0.06 |
| Pneumonia shot | 65.6% | 64.7% | 0.37 | 66.1% | 65.3% | 0.45 |
| Flu shot | 71.9% | 71.4% | 0.62 | 72.6% | 71.3% | 0.19 |
| Hysterectomy | 25.2% | 25.1% | 0.88 | 25.2% | 26.0% | 0.42 |
| Income / FPL<1.5 | 9.9% | 9.7% | 0.86 | 9.5% | 9.4% | 0.86 |
| Income / FPL<2.0 | 20.0% | 20.2% | 0.84 | 20.9% | 21.2% | 0.76 |
| Income / FPL<4.0 | 27.7% | 28.1% | 0.73 | 29.9% | 29.2% | 0.44 |
| Income / FPL<5.0 | 15.1% | 15.1% | 0.92 | 15.8% | 16.1% | 0.66 |
| Other private insurance | 74.2% | 73.3% | 0.31 | 76.0% | 75.4% | 0.51 |
| Difficulty lifting (scale 1–4) | 1.78 | 1.75 | 0.15 | 1.63 | 1.61 | 0.40 |
| Difficulty stooping (scale 1–4) | 2.11 | 2.09 | 0.39 | 1.99 | 1.96 | 0.19 |
| Difficulty walking | 44.1% | 43.1% | 0.34 | 39.5% | 38.5% | 0.35 |
| Difficulty dressing | 17.4% | 16.1% | 0.13 | 12.6% | 12.5% | 0.80 |
| Difficulty eating | 9.4% | 8.6% | 0.24 | 7.0% | 6.4% | 0.35 |
| Health since last year – same | 55.2% | 56.1% | 0.40 | 58.3% | 59.2% | 0.39 |
| Health since last year – worse | 22.4% | 21.3% | 0.22 | 21.6% | 20.7% | 0.30 |
| General health status – very good | 25.0% | 25.4% | 0.72 | 25.8% | 27.2% | 0.13 |
| General health status – good | 32.8% | 33.0% | 0.83 | 32.5% | 32.9% | 0.69 |
| General health status – fair | 20.4% | 20.4% | 0.98 | 19.8% | 18.7% | 0.22 |
| General health status – poor | 9.3% | 8.4% | 0.17 | 7.7% | 7.1% | 0.30 |
| Hearing aid | 12.4% | 11.8% | 0.34 | 10.7% | 10.8% | 0.91 |
| Institutional days | 32.7 | 31.2 | 0.48 | 23.1 | 20.7 | 0.18 |
| Inpatient nights | 3.0 | 2.6 | 0.01 | 2.6 | 2.1 | 0.00 |
| Inpatient stays | 0.5 | 0.4 | 0.00 | 0.5 | 0.4 | 0.00 |
| Height | 166.8 | 166.7 | 0.75 | 166.9 | 167 | 0.78 |
| Weight(kg) | 71.6 | 71.7 | 0.76 | 72.3 | 72.5 | 0.64 |
| p-value for test of equality | 0.628 | 0.929 | ||||
| Variables Excluded From the Model | ||||||
| Regular place of care (Doctor’s office) | 84.7% | 86.7% | 0.09 | 85.6% | 86.4% | 0.32 |
| Employer sponsored insurance (ESI) | 39.6% | 40.4% | 0.48 | 40.9% | 39.7% | 0.27 |
| Total out-of- pocket payments ($2010) | $2,679 | $2,519 | 0.32 | $2,903 | $2,650 | 0.11 |
| Total uncollected liability ($2010) | $142 | $145 | 0.98 | $156 | $131 | 0.23 |
| Medicaid drug coverage | 7.4% | 7.4% | 1.00 | 8.2% | 7.4% | 0.16 |
| Lives in metro region | 70.9% | 71.3% | 0.69 | 71.6% | 71.1% | 0.61 |
| p-value for test of equality | 0.326 | 0.359 | ||||
Notes: The last row in each panel reports the p-values for the joint F-test of equality between treatment and controls.
Source: Authors’ calculations as described in the text.