Table 2.
Ambulance transport to hospital (%) with 95% confidence intervals (95% CI), 2011–2012
| Variable | Category | Valid N | Prop. (95% CI) | Adj. OR (95% CI) |
|---|---|---|---|---|
| Sex | Women | 21,073 | 76.1 (75.5–76.7) | 1.00 (0.96–1.06) |
| Men | 22,422 | 71.3 (70.7–71.9) | Ref. | |
| Age group | 18–54 | 2,619 | 60.9 (59.0–62.7) | Ref. |
| 55–64 | 4,891 | 61.7 (60.3–63.0) | 1.04 (0.93–1.16) | |
| 65–74 | 10,089 | 67.4 (66.5–68.3) | 1.28 (1.16–1.41) | |
| 75–84 | 14,139 | 75.3 (74.6–76.0) | 1.64 (1.49–1.82) | |
| 85+ | 11,757 | 84.7 (84.0–85.3) | 2.34 (2.09–2.61) | |
| Education | Unknown | 1,210 | 76.9 (74.6–79.3) | 1.09 (0.90–1.32) |
| Primary | 19,938 | 77.2 (76.6–77.8) | Ref. | |
| Secondary | 15,531 | 71.0 (70.3–71.7) | 0.91 (0.86–0.96) | |
| University | 6,816 | 68.5 (67.4–69.6) | 0.85 (0.79–0.91) | |
| Country of birth | Missing | 362 | 70.2 (65.4–74.9) | – |
| Sweden | 37,747 | 74.0 (73.5–74.4) | Ref. | |
| Other Nordic | 2,479 | 73.7 (71.9–75.4) | 0.99 (0.90–1.10) | |
| Other Europe | 1,912 | 71.4 (69.4–73.5) | 0.92 (0.82–1.03) | |
| Other | 995 | 65.4 (62.5–68.4) | 0.74 (0.64–0.87) | |
| Living alone | Missing | 214 | 65.4 (59.0–71.8) | – |
| No | 21,472 | 69.1 (68.5–69.7) | Ref. | |
| Yes | 21,809 | 78.1 (77.6–78.7) | 1.12 (1.07–1.18) | |
| Previous stroke | Missing | 266 | 77.4 (72.4–82.5) | – |
| No | 32,497 | 71.4 (71.0–71.9) | Ref. | |
| Yes | 10,732 | 80.1 (79.3–80.8) | 1.32 (1.24–1.40) | |
| Atrial fibrillation | Missing | 278 | 82.0 (77.5–86.6) | – |
| No | 30,705 | 70.5 (70.0–71.0) | Ref. | |
| Yes | 12,512 | 81.0 (80.3–81.7) | 1.33 (1.26–1.41) | |
| Diabetes | Missing | 149 | 80.5 (74.1–87.0) | – |
| No | 34,397 | 73.7 (73.2–74.1) | Ref. | |
| Yes | 8,949 | 73.2 (72.3–74.1) | 0.99 (0.94–1.05) | |
| Hypertensive medication | Missing | 301 | 80.1 (75.5–84.6) | – |
| No | 16,731 | 72.0 (71.3–72.7) | Ref. | |
| Yes | 26,463 | 74.6 (74.0–75.1) | 0.97 (0.92–1.02) | |
| Smoker | Unknown | 3,318 | 80.8 (79.5–82.1) | 1.10 (0.99–1.23) |
| No | 34,697 | 74.0 (73.5–74.4) | Ref. | |
| Yes | 5,480 | 66.9 (65.6–68.1) | 1.03 (0.96–1.10) | |
| ADL‐dependent | Missing | 862 | 89.6 (87.5–91.6) | – |
| No | 37,395 | 71.0 (70.6–71.5) | Ref | |
| Yes | 5,238 | 89.3 (88.5–90.1) | 1.73 (1.56–1.94) | |
| Living in an institution | Missing | 129 | 81.4 (74.6–88.2) | – |
| No | 38,958 | 71.6 (71.2–72.1) | Ref. | |
| Yes | 4,408 | 90.9 (90.1–91.8) | 1.69 (1.07–1.18) | |
| Level of consciousness | Missing | 551 | 13.6 (10.7–16.5) | – |
| Alert | 39,436 | 21.0 (20.6–21.4) | Ref. | |
| Drowsy | 5,934 | 27.8 (26.7–29.0) | 4.06 (3.64–4.54) | |
| Unconscious | 2,445 | 20.1 (18.5–21.7) | 4.68 (3.88–5.65) | |
| Stroke subtype | Hemorrhagic | 5,672 | 27.2 (26.0–28.3) | 1.68 (1.54–1.83) |
| Ischemic | 42,012 | 21.2 (20.8–21.5) | Ref. | |
| Unspecified | 682 | 10.6 (8.2–12.9) | 0.69 (0.55–0.86) | |
| Hospital type | University | 8,846 | 74.3 (73.4–75.2) | 1.12 (1.05–1.20) |
| Specialized nonuniversity | 17,823 | 72.8 (72.1–73.4) | 1.10 (1.04 1.16) | |
| Community | 14,956 | 72.7 (72.0–73.4) | Ref. |
Adjusted odds ratios (Adj. OR) with 95% CI from multiple logistic regression model including all variables in table.