Demographic characteristics of US National Health Interview Survey participants by emergency department visit frequency during the previous 12 months
| 0 ED visits (n=124 433) | 1–3 ED visits (n=29 971) | 4–9 ED visits (n=2803) | ≥10 ED visits (n=611) | |
|---|---|---|---|---|
| Characteristic | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) |
| Demographics | ||||
| Age (years) | ||||
| 18–44 (n=74 872) | 49.6 (49.1 to 50.2) | 50.9 (50.0 to 51.7) | 52.6 (50.2 to 55.0) | 54.6 (49.3 to 59.8) |
| 45–64 (n=52 161) | 34.8 (34.4 to 35.3) | 30.0 (29.3 to 30.7) | 29.7 (27.5 to 31.9) | 27.8 (24.0 to 32.1) |
| ≥65 (n=30 785) | 15.5 (15.2 to 15.9) | 19.2 (18.5 to 19.8) | 17.7 (16.0 to 19.6) | 17.6 (14 to 21.8) |
| Female sex (n=88 268) | 50.8 (50.4 to 51.1) | 54.9 (54.1 to 55.6) | 63.3 (60.9 to 65.6) | 65.1 (59.9 to 70.0) |
| Married (n=73 361) | 58.1 (57.6 to 58.6) | 49.9 (49.2 to 50.7) | 41.3 (38.9 to 43.8) | 44.1 (38.7 to 49.7) |
| Race/ethnicity | ||||
| Non-Hispanic white (n=97 498) | 70.2 (69.7 to 70.8) | 69.9 (69.1 to 70.7) | 65.7 (63.2 to 68.2) | 65.0 (60.2 to 69.6) |
| Non-Hispanic black (n=23 921) | 10.6 (10.2 to 11.0) | 14.6 (14.0 to 15.3) | 20.4 (18.4 to 22.5) | 23.4 (19.4 to 27.8) |
| Hispanic (n=27 986) | 13.6 (13.1 to 14.0) | 11.7 (11.2 to 12.3) | 11.4 (10.0 to 13.0) | 9.3 (7.1 to 12.1) |
| Non-Hispanic Asian (n=7647) | 5.0 (4.8 to 5.2) | 3.0 (2.7 to 3.3) | 1.7 (1.2 to 2.3) | nc |
| Other (n=766) | 0.6 (0.5 to 0.7) | 0.8 (0.6 to 1.0) | nc | nc |
| Socioeconomic status | ||||
| Currently employed (n=91 390) | 63.1 (62.7 to 63.6) | 52.5 (51.8 to 53.3) | 32.4 (30.1 to 34.8) | 23.0 (19.1 to 27.5) |
| Poverty–income ratio | ||||
| <1.0 (n=20 413) | 8.5 (8.1 to 8.8) | 13.4 (12.9 to 14.0) | 25.3 (23.4 to 27.4) | 30.5 (26.2 to 35.1) |
| 1.0–1.9 (n=25 614) | 13.5 (13.3 to 13.8) | 17.2 (16.6 to 17.7) | 23.2 (21.3 to 25.2) | 24.1 (19.9 to 28.7) |
| 2.0–3.9 (n=37 706) | 24.6 (24.2 to 25.0) | 25.4 (24.8 to 26.1) | 21.6 (19.6 to 23.7) | 16.2 (12.9 to 20.2) |
| ≥4.0 (n=44 063) | 34.3 (33.7 to 34.8) | 27.0 (26.2 to 27.7) | 13.2 (11.5 to 15.1) | 12.7 (9.3 to 17.1) |
| Unknown (n=30 022) | 19.1 (18.7 to 19.6) | 17.0 (16.4 to 17.6) | 16.8 (15.1 to 18.6) | 16.6 (13.5 to 20.2) |
| Education | ||||
| <High school (n=28 812) | 14.8 (14.4 to 15.2) | 19.5 (18.8 to 20.1) | 29.2 (27.2 to 31.4) | 31.3 (27.0 to 36.0) |
| High school graduate (n=43 760) | 28.3 (27.9 to 28.7) | 30.0 (29.3 to 30.8) | 30.5 (27.9 to 33.2) | 31.4 (27.2 to 35.6) |
| Some college (n=44 869) | 29.0 (28.6 to 29.3) | 30.5 (29.8 to 31.3) | 29.0 (26.9 to 31.2) | 27.0 (22.8 to 31.7) |
| ≥Bachelors degree (n=38 954) | 28.0 (27.4 to 28.5) | 20.0 (19.4 to 20.6) | 11.3 (9.9 to 12.9) | 10.3 (7.5 to 13.8) |
ED, emergency department; nc, not calculable due to <30 observations; ‘n’, represents number of observations in the National Health Interview Survey; percentages represented weighted proportions to estimate the entire US population.