Table 2.
Characteristics of patients age ≥18 years with atrial fibrillation or flutter as the secondary diagnoses – Nationwide Emergency Department Sample 2014, National Inpatient Sample 2014 and National Vital Statistics System 2014*
| Demographic | Emergency Department Visits | Hospitalizations | Deaths | |||
|---|---|---|---|---|---|---|
| Weighted % (Standard error) | Weighted % (Standard error) | % | ||||
| AF N=3,952,915 |
No AF N=106,973,681 |
AF N= 3,523,726 |
No AF N= 25,770,682 |
AF N=115,719 |
No AF N=2,452,276 |
|
| Mean age (years) | 75.6 (0.1) | 46.4 (0.1)£ | 75.7 (0.1) | 54.5 (0.1)£ | 82.9 (0.03) | 73.6 (0.01)£ |
| Age category | ||||||
| 18–44 years | 2.1 (0.1) | 50.6 (0.3)£ | 1.4 (0.03) | 33.6 (0.2)£ | 0.2 | 5.8£ |
| 45–64 years | 15.7 (0.3) | 29.6 (0.2)£ | 15.4 (0.1) | 31.2 (0.1)£ | 5.6 | 21.1£ |
| 65–74 years | 21.4 (0.2) | 9.2 (0.1)£ | 23.5 (0.1) | 16.3 (0.1)£ | 13.0 | 18.5£ |
| 75–84 years | 32.0 (0.2) | 6.6 (0.1)£ | 32.8 (0.1) | 11.9 (0.1)£ | 29.7 | 23.8£ |
| 85+ years | 28.7 (0.3) | 4.0 (0.1)£ | 26.9 (0.2) | 7.0 (0.1)£ | 51.4 | 30.7£ |
| Sex | ||||||
| Men | 50.1 (0.2) | 42.4 (0.2)£ | 52.0 (0.1) | 39.5 (0.1)£ | 46.9 | 50.7£ |
| Women | 49.9 (0.2) | 57.6 (0.2)£ | 48.0 (0.1) | 60.5 (0.1)£ | 53.1 | 49.3£ |
| Sex and age group | ||||||
| Men and age <65 years | 11.3 (0.2) | 34.2 (0.2)£ | 10.9 (0.1) | 24.2 (0.1)£ | 4.0 | 16.6£ |
| Men and age ≥65 years | 38.8 (0.2) | 8.2 (0.1)£ | 41.1 (0.1) | 15.3 (0.1)£ | 42.9 | 34.1£ |
| Women and age <65 years | 6.6 (0.1) | 45.9 (0.2)£ | 5.9 (0.1) | 40.5 (0.2)£ | 1.9 | 10.3£ |
| Women and age ≥65 years | 43.3 (0.2) | 11.6 (0.2)£ | 42.1 (0.1) | 20.0 (0.1)£ | 51.2 | 39.0£ |
| Health insurance | ||||||
| Medicare | 80.9 (0.5) | 25.7 (0.3)£ | 81.8 (0.2) | 41.1 (0.2)£ | NA | NA |
| Medicaid | 5.1 (0.2) | 25.8 (0.5)£ | 4.2 (0.1) | 19.9 (0.2)£ | NA | NA |
| Private | 10.8 (0.4) | 27.6 (0.5)£ | 11.3 (0.2) | 30.5 (0.3)£ | NA | NA |
| Other | 3.1 (0.1) | 20.7 (0.5)£ | 2.6 (0.1) | 8.3 (0.1)£ | NA | NA |
| Census region (2014 population size, millions) | ||||||
| Northeast (44.2) | 18.2 (1.2) | 18.5 (1.1) | 20.6 (0.5) | 18.9 (0.4)£ | 19.0 | 18.1£ |
| Midwest (52.0) | 24.5 (1.4) | 23.1 (1.0) | 24.5 (0.5) | 22.3 (0.4)£ | 23.7 | 23.2£ |
| South (91.7) | 38.3 (1.6) | 40.6 (1.3)§ | 37.3 (0.5) | 39.3 (0.4)£ | 33.6 | 39.3£ |
| West (56.9) | 18.9 (1.0) | 17.9 (0.7) | 17.6 (0.4) | 19.5 (0.3)£ | 23.7 | 19.4£ |
| Hospital location | ||||||
| Rural | 13.1 (0.6) | 15.8 (0.6)£ | 10.4 (0.3) | 9.7 (0.2)£ | NA | NA |
| Urban non-teaching | 31.2 (1.4) | 30.3 (1.1) | 28.2 (0.4) | 26.8 (0.3)£ | NA | NA |
| Urban teaching | 55.7 (1.5) | 54.0 (1.1) | 61.4 (0.5) | 63.5 (0.4)£ | NA | NA |
| Primary diagnosis | ||||||
| Chronic kidney disease | 0.1 (0.01) | 0.1 (0.01) | 0.1 (0.01) | 0.1 (0.01) | 1.0 | 1.1§ |
| Dementia | 0.5 (0.02) | 0.2 (0.004) £ | 0.5 (0.01) | 0.4 (0.01)£ | 9.3 | 9.6£ |
| Diabetes mellitus | 1.0 (0.02) | 1.0 (0.01) | 1.1 (0.01) | 1.9 (0.02)£ | 3.9 | 2.9£ |
| Heart Failure, valvular heart disease, or cardiomyopathy | 9.4 (0.1) | 0.6 (0.01) £ | 12.9 (0.1) | 2.3 (0.02)£ | 9.3 | 5.1£ |
| Hypertension | 1.5 (0.03) | 1.0 (0.01) £ | 1.5 (0.03) | 1.0 (0.01)£ | 5.9 | 2.7£ |
| Ischemic heart disease | 3.4 (0.1) | 0.8 (0.02) £ | 5.3 (0.1) | 3.2 (0.04)£ | 21.9 | 13.4£ |
| Stroke | 3.4 (0.1) | 0.5 (0.01) £ | 4.3 (0.05) | 2.1 (0.02)£ | 8.2 | 4.5£ |
| None of above conditions | 80.7 (0.2) | 95.8 (0.04) £ | 74.4 (0.1) | 89.1 (0.1)£ | 42.8 | 61.2£ |
£
P<0.001
§
P<0.05; AF = atrial fibrillation or flutter
Source of regional population sizes: U.S. Census Bureau, 2014 American Community Survey 1-Year Estimates
*
Patients with AF as the primary diagnoses were excluded from this table.