TABLE 2—
Access to and Use of Health Care Among Adults: Douglas, AZ, 1998 and 2010
| Variable | 1998, % (95% CI) | 2010, % (95% CI) | P |
| Health insurance | < .001 | ||
| None | 34.0 (30.9, 37.1) | 18.1 (15.3, 20.9) | |
| Public | 28.5 (25.6, 31.5) | 54.9 (51.2, 58.6) | |
| Private | 34.3 (31.2, 37.3) | 20.5 (17.5, 23.5) | |
| Public and private | 3.2 (2.0, 4.3) | 6.5 (4.7, 8.3) | |
| Usual source of care | < .001 | ||
| None | 7.5 (5.8, 9.2) | 3.4 (2.1, 4.7) | |
| Private doctor | 29.7 (26.8, 32.7) | 27.4 (24.1, 30.7) | |
| Public clinic | 55.8 (52.5, 59.0) | 67.2 (63.7, 70.7) | |
| Emergency department | . . . | . . . | |
| Multiple | 6.9 (5.3, 8.6) | 2.0 (1.0, 3.0) | |
| Provider location | < .001 | ||
| United States | 75.4 (72.5, 78.4) | 88.3 (85.9, 90.7) | |
| Mexico | 24.6 (21.6, 27.5) | 11.7 (9.3, 14.1) | |
| Any health care visit, past year | 73.3 (70.4, 76.1) | 88.7 (86.4, 91.0) | < .001 |
| Emergency department visit, past 6 mo | 11.9 (9.8, 14.0) | 12.4 (10.0, 14.9) | .76 |
| Overnight hospital visit, past 6 mo | 9.9 (7.9, 11.8) | 7.6 (5.7, 9.6) | .12 |
| Delayed care, past year | 19.3 (16.7, 21.8) | 12.6 (10.2, 15.1) | < .001 |
| Hypertension screening, past year | 76.0 (73.3, 78.8) | 87.7 (85.3, 90.1) | < .001 |
| Diabetes screening, past year | 51.4 (48.2, 54.7) | 80.9 (78.0, 83.8) | < .001 |
Note. CI = confidence interval. P values are derived from a χ2 statistic.