Variable | Level | Total (n = 1075) | Q1 21.2–37.7% (n = 254) | Q2 47.1–55.7% (n = 158) | Q3 60.0–64.7% (n = 350) | Q4 69.0–81.7% (n = 313) | Main effects p-valuea |
---|---|---|---|---|---|---|---|
Age | Median (IQR) (min, max) | Missing = 1 63.5 (54, 71) (19, 90) | Missing = 1 61 (50, 71) (19, 90) | Missing = 0 62 (53, 69) (24, 89) | Missing = 0 65 (54, 72) (22, 90) | Missing = 0 65 (57, 73) (23, 90) | 0.381 |
Gender | |||||||
 | Female | 553 (51%) | 137 (54%) | 84 (53%) | 171 (49%) | 161 (51%) | 0.078 |
Male | 511 (48%) | 110 (43%) | 74 (47%) | 178 (51%) | 149 (48%) | Â | |
Unspecified | 4 (0%) | 3 (1%) | 0 (0%) | 0 (0%) | 1 (0%) | Â | |
Missing | 7 (1%) | 4 (2%) | 0 (0%) | 1 (0%) | 2 (1%) | Â | |
Race | White | 847 (84%) | 193 (83%) | 104 (74%) | 279 (83%) | 271 (88%) | 0.017 |
Black/African American | 129 (13%) | 23 (10%) | 31 (22%) | 42 (13%) | 33 (11%) | Â | |
Other | 38 (4%) | 14 (6%) | 5 (4%) | 14 (4%) | 5 (2%) | Â | |
Ethnicity | Hispanic or Latino | 76 (7%) | 24 (10%) | 18 (11%) | 29 (8%) | 5 (2%) | 0.080 |
Not Hispanic or Latino | 977 (93%) | 220 (90%) | 138 (85%) | 315 (92%) | 304 (98%) | Â | |
Marital status | |||||||
 | Divorced or separated | 153 (14%) | 34 (14%) | 24 (15%) | 49 (14%) | 46 (15%) | 0.329b |
Married/domestic partnership | 639 (60%) | 146 (58%) | 88 (56%) | 210 (60%) | 195 (63%) | Â | |
Never married | 151 (14%) | 45 (18%) | 28 (18%) | 47 (13%) | 31 (10%) | Â | |
Refused | 2 (0%) | 0 (0%) | 1 (1%) | 0 (0%) | 1 (0%) | Â | |
Widowed | 123 (11%) | 25 (10%) | 17 (11%) | 43 (12%) | 38 (12%) | Â | |
Missing | 7 (1%) | 4 (2%) | 0 (0%) | 1 (0%) | 2 (1%) | Â | |
Education | Not a high school graduate | 85 (8%) | 14 (6%) | 18 (12%) | 35 (10%) | 18 (6%) |  < 0.001b |
 | High school graduate (including equivalency) | 270 (26%) | 43 (17%) | 48 (31%) | 102 (30%) | 77 (25%) |  |
Some college or associates degree | 283 (27%) | 56 (22%) | 40 (26%) | 83 (24%) | 104 (34%) | Â | |
Bachelor’s degree | 225 (21%) | 68 (27%) | 32 (20%) | 65 (19%) | 60 (20%) |  | |
Graduate or professional degree | 195 (18%) | 69 (28%) | 19 (12%) | 61 (18%) | 46 (15%) | Â | |
ED arrival day | |||||||
 | Sun-Thurs | 841 (78%) | 184 (72%) | 127 (80%) | 279 (80%) | 251 (80%) |  |
Fri-Sat | 209 (19%) | 55 (22%) | 31 (20%) | 67 (19%) | 56 (18%) | Â | |
Missing | 25 (2%) | 15 (6%) | 0 (0%) | 4 (1%) | 6 (2%) | 0.924 | |
Mode of arrival | |||||||
 | Ground ambulance/aeromedical | 244 (23%) | 52 (20%) | 30 (19%) | 95 (27%) | 67 (21%) |  |
Other | 227 (21%) | 83 (33%) | 29 (18%) | 99 (28%) | 16 (5%) | Â | |
Private vehicle | 475 (44%) | 69 (27%) | 77 (49%) | 111 (32%) | 218 (70%) | Â | |
Unknown/not documented | 118 (11%) | 42 (17%) | 22 (14%) | 44 (13%) | 10 (3%) | Â | |
Missing | 11 (1%) | 8 (3%) | 0 (0%) | 1 (0%) | 2 (1%) |  < 0.001b | |
Emergency severity index (ESI) score at presentation | |||||||
 | 1—most urgent | 10 (1%) | 1 (0%) | 0 (0%) | 1 (0%) | 8 (3%) |  |
2—emergent | 430 (40%) | 27 (11%) | 51 (32%) | 157 (45%) | 195 (62%) |  | |
3—urgent | 542 (50%) | 158 (62%) | 103 (65%) | 180 (51%) | 101 (32%) |  | |
4—less urgent | 20 (2%) | 6 (2%) | 3 (2%) | 9 (3%) | 2 (1%) |  | |
5—nonurgent | 6 (1%) | 4 (2%) | 0 (0%) | 0 (0%) | 2 (1%) |  | |
Not documented | 46 (4%) | 42 (17%) | 1 (1%) | 2 (1%) | 1 (0%) | Â | |
Other—ESI not used | 10 (1%) | 8 (3%) | 0 (0%) | 0 (0%) | 2 (1%) |  | |
Missing | 11 (1%) | 8 (3%) | 0 (0%) | 1 (0%) | 2 (1%) | c | |
ECOG | |||||||
 | 0 (ECOG 0 or 1) | 626 (58%) | 156 (61%) | 85 (54%) | 208 (59%) | 177 (57%) |  |
1 (ECOG 2–4) | 433 (40%) | 91 (36%) | 73 (46%) | 140 (40%) | 129 (41%) |  | |
Missing | 16 (1%) | 7 (3%) | 0 (0%) | 2 (1%) | 7 (2%) | 0.313 | |
Functional status | |||||||
 | Fully active, able to carry on all pre-disease performance without restriction | 302 (28%) | 86 (34%) | 32 (20%) | 106 (30%) | 78 (25%) |  |
Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature | 324 (30%) | 70 (28%) | 53 (34%) | 102 (29%) | 99 (32%) | Â | |
Ambulatory and capable of all self-care but unable to carry out any work activities. Up and about > 50% of waking hours | 202 (19%) | 49 (19%) | 41 (26%) | 57 (16%) | 55 (18%) |  | |
Capable of only limited self-care, confined to bed or chair more than 50% of waking hours | 199 (19%) | 32 (13%) | 32 (20%) | 70 (20%) | 65 (21%) | Â | |
Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair | 32 (3%) | 10 (4%) | 0 (0%) | 13 (4%) | 9 (3%) | Â | |
Missing | 16 (1%) | 7 (3%) | 0 (0%) | 2 (1%) | 7 (2%) | 0.236 |