Skip to main content
. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Ann Emerg Med. 2011 Feb 21;58(1):24–32.e3. doi: 10.1016/j.annemergmed.2011.01.009

Table 1.

Characteristics of study hospitals by quartiles of left without being seen, including left without being seen=0 (n=288).

Quartiles of % LBWS
All, 0.06–20.4 Hospitals Reporting 0 LWBS Patients*
Q1, ≤1.4 Q2, >1.4–≤2.6 Q3, >2.6–≤4.4 Q4, >4.4
No. of hospitals 66 65 65 66 262 26
Mean (SD)
Annual ED visits, thousands 32.6 (21.0) 30.2 (15.3) 36.8 (16.9) 40.5 (22.0) 35.0 (19.3) 28.6 (13.8)
Age, y, mean (SD) 39.9 (7.9) 39.9 (7.2) 37.9 (7.9) 37.6 (5.1) 38.8 (7.2) 39.2 (8.8)
Male, No. (%) 46.0 (2.7) 46.2 (3.4) 46.2 (2.8) 46.8 (4.5) 46.3 (3.4) 46.6 (2.8)
Minority, %§ 44.8 (23.9) 44.9 (24.7) 49.5 (23.2) 60.3 (21.5) 49.9 (24.1) 47.9 (24.9)
Income, $1,000§ 52.9 (13.8) 47.8 (11.6) 45.8 (10.3) 42.0 (9.4) 47.1 (12.0) 52.4 (14.2)
Insurance: Med-Cal+uninsured, %§ 34.8 (18.5) 38.0 (20.2) 40.9 (17.1) 53.6 (17.5) 41.8 (19.6) 36.2 (19.1)
Operating margin, No. (%)|| 1.5 (10.2) 1.0 (13.2) 0.5 (12.1) −5.2 (20.8) −0.7 (15.0) −1.8 (35.6)
Hospitals, No. (%)
Teaching status§
 Yes 0 3 (5) 3 (5) 15 (23) 21 (8) 1 (4)
 No 66 (100) 62 (95) 62 (95) 51 (77) 241 (92) 25 (96)
Ownership§
 County 1 (2) 3 (5) 1 (2) 12 (18) 17 (6) 0
 For profit 14 (21) 18 (28) 15 (23) 9 (14) 56 (21) 7 (27)
 Nonprofit 51 (77) 44 (68) 49 (75) 45 (68) 189 (72) 19 (73)
Trauma center||
 Yes 3 (5) 7 (11) 9 (14) 20 (30) 39 (16) 3 (12)
 No 63 (95) 58 (89) 56 (86) 46 (70) 223 (85) 23 (88)

LWBS, Left without being seen; Q, quartile.

*

Nothing significant between “All” and “Hospitals reporting 0 LWBS patients” except income. For annual ED visits, the nonparametric Wilcoxon test indicated no significance and was also nonsignificant when a log transformation was used.

For these categorical variables, the numbers reported are mean proportion and SD of the proportion.

ANOVA (comparing among Q1 to Q4).

§

P<.001.

||

P<.05.

Chi-square test (comparing among Q1 to Q4).