Table 1.
Characteristics of U.S. Counties by Tertiles of CPR Training Rates
| Overall N=3143 |
Lower Tertile N=1047 |
Middle Tertile N=1048 |
Upper Tertile N=1048 |
p-value | |
|---|---|---|---|---|---|
| Baseline characteristics a | |||||
| Population density (persons per sq. mile) |
42.8 (16.5, 107.6) |
24.0 (7.7, 46.7) |
44.1 (20.0, 96.6) |
92.7 (32.8, 282.1) |
<0.001 |
| Percent white | 89.1 (75.2, 95.5) |
89.1 (72.6, 96.3) |
90.4 (78.2, 96.0) |
87.8 (74.9, 94.1) |
0.001 |
| Percent black | 2.0 (0.5, 10.2) |
1.3 (0.3, 15.0) |
1.7 (0.5, 7.1) |
2.8 (0.8, 9.8) |
<0.001 |
| Percent Hispanic | 3.3 (1.6, 8.2) |
2.5 (1.4, 6.2) |
3.2 (1.6, 8.5) |
4.1 (2.0, 9.5) |
<0.001 |
| Percent Asian | 0.5 (0.3, 1.0) |
0.3 (0.2, 0.5) |
0.5 (0.3, 1.0) |
0.9 (0.5, 2.1) |
<0.001 |
| Percent male | 49.5 (48.9, 50.4) |
49.7 (49.0, 50.7) |
49.6 (49.0, 50.3) |
49.4 (48.7, 50.1) |
<0.001 |
| Age, years | 40.3 (37.4, 43.4) |
41.4 (38.9, 44.8) |
40.4 (37.6, 43.4) |
39.3 (36.1, 41.9) |
<0.001 |
| Percent rural population | 60.4 (35.8, 90.2) |
82.8 (60.3, 100.0) |
60.7 (38.8, 82.3) |
38.6 (18.0, 60.0) |
<0.001 |
| Percent college degree, % | 14.5 (11.2, 19.3) |
12.1 (10.0, 15.4) |
14.4 (11.3, 18.8) |
17.7 (13.7, 24.8) |
<0.001 |
| Median household income, $ | 42,390 (36,518, 49,241) |
38,087 (33,551, 43,693) |
43,358 (37,630, 50,332) |
45,267 (40,135, 52,386) |
<0.001 |
| Percent in poverty | 14.3 (10.9, 18.3) |
16.3 (12.3, 21.0) |
13.5 (10.6, 17.8) |
13.5 (10.4, 16.7) |
<0.001 |
| Number of physicians | 20.0 (5.0, 93.0) |
6.0 (2.0, 15.0) |
22.0 (7.0, 76.0) |
94.0 (24.5, 405.5) |
<0.001 |
| Heart disease mortality rate (persons per 100,000) |
197.4 (170.6, 228.9) |
208.0 (176.2, 246.4) |
195.8 (170.6, 226.1) |
191.2 (164.4, 215.4) |
<0.001 |
| Region, % | <0.001 | ||||
| West | 14.3 | 11.1 | 14.4 | 17.3 | |
| South | 45.3 | 57.0 | 43.9 | 34.9 | |
| Midwest | 33.6 | 31.1 | 34.6 | 34.9 | |
| Northeast | 6.9 | 0.8 | 7.1 | 12.9 |
Abbreviations: CPR, cardiopulmonary resuscitation; sq, square; U.S., United States
a
For all variables, except region, medians and 25th and 75th percentiles (in parentheses) are reported. Each race and ethnicity were collected independently via U.S. Census and represent the percentage of persons within the county. Percentages will not sum to 100%.