Table 1

Mean and median duration, and total volume of treat-and-release visits at EDs by patient characteristics
Total Visits Mean Duration* Median Duration* 95% Confidence Interval for Mean
All visit 4,955,590 195.7 130.2 (194.2 - 197.2)
Age
Under 15 946,742 142.2 120.0 (141.6 - 142.7)
15 – 24 875,470 183.9 121.2 (182.7 - 185.1)
25 – 44 1,545,098 203.1 132.6 (199.0 - 207.2)
45 – 64 1,007,553 223.7 167.4 (220.0 - 227.4)
65 – 74 253,177 227.3 180.0 (222.9 - 231.6)
Over 74 327,421 237.5 180.0 (236.2 - 238.9)
Gender
Male 2,305,226 187.4 120.0 (185.9 - 189.0)
Female 2,650,203 202.8 149.4 (200.4 - 205.3)
Race
White 3,335,431 190.6 126.6 (189.8 - 191.3)
Black 354,549 212.0 154.2 (208.7 - 215.2)
Hispanic 914,958 202.4 146.4 (201.1 - 203.8)
Asian 73,124 203.8 153.0 (201.1 - 206.5)
Native 69,377 204.7 120.0 (193.3 - 216.1)
Other 83,967 193.8 141.0 (192.1 - 195.4)
Insurance Coverage
Medicare 737,230 237.7 180.0 (236.0 - 239.4)
Medicaid 1,344,182 182.8 120.0 (181.7 - 183.9)
Private 1,990,780 192.8 130.2 (189.6 - 196.0)
Other insurance 239,412 169.4 120.0 (165.8 - 173.0)
Uninsured 532,653 191.8 120.0 (185.6 - 198.0)
CCS Disease Categories**
[1 - 10] 262,850 184.3 120.0 (182.6 - 185.9)
[11 - 47] 72,107 286.8 237.0 (281.1 - 292.5)
[48 - 58] 507,389 269.4 192.6 (267.1 - 271.7)
[59 - 64] 59,067 327.3 240.0 (322.9 - 331.6)
[65 - 75] 712,236 284.0 180.0 (282.8 - 285.2)
[76 - 95] 767,383 202.1 154.8 (200.4 - 203.8)
[96 - 121] 795,116 256.4 180.0 (252.2 - 260.6)
[122 - 134] 929,207 185.3 126.0 (184.6 - 186.1)
[135 - 155] 545,083 228.2 180.0 (227.1 - 229.3)
[156 - 175] 454,092 241.2 182.4 (239.7 - 242.7)
[176 - 196] 123,116 237.0 187.2 (233.5 - 240.5)
[197 - 200] 245,968 160.0 120.0 (158.4 - 161.6)
[201 - 212] 642,445 198.1 136.2 (192.6 - 203.6)
[213 - 217] 15,454 221.0 180.0 (215.2 - 226.7)
[218 - 224] 11,601 140.5 120.0 (136.1 - 144.8)
[225 - 244] 1,449,389 159.6 120.0 (158.5 - 160.6)
[245 - 259] 1,370,770 228.7 180.0 (224.8 - 232.6)

Note: Data include all treat-and-release discharges at emergency departments during 2008 in Arizona, Massachusetts, and Utah.

* Duration is measured in minutes as the difference between admission and discharge time for each visit.

** Disease categories are based on Clinical Classification Software, which is a diagnosis and procedure categorization scheme based on the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM).The HCUP SEDD do not differentiate between the primary diagnosis codes and other diagnosis codes. Therefore, we used all diagnosis codes reported for each visit when creating broader CCS disease categories. CCS disease codes: [1-10] infectious and parasitic diseases; [11-47] neoplasm; [48-58] endocr, nutri, metab, immun diseases; [59-64] diseases of blood, blood forming organs; [65-75] mental disorders; [76-95] diseases of nervous systems and sense organs; [96-121] diseases of circulatory systems; [122-134] diseases of respiratory systems; [135-155] diseases of digestive systems; [156-175] diseases of genitourinary systems; [176-196] complications of birth, pregnancy, puerperium; [197-200] diseases of skin and subcutaneous tissue; [201-212] diseases of musculoskel, connective tissue; [213-217] congenital anomalies; [218-224] perinatal conditions; [225-244] injury and poisoning; [245-259] other conditions. Further details are available at http://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp webcite.

Karaca et al.

Karaca et al. BMC Emergency Medicine 2012 12:15   doi:10.1186/1471-227X-12-15

Open Data