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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Pain. 2012 Mar 3;153(5):967–973. doi: 10.1016/j.pain.2012.01.013

Table 2.

Relationships between patient characteristics and receipt of opioid in the ED.

Characteristica N ED Opioidb p-valuec
Mean Age, y (SD) 690 35 (12) .81

Sex .20
 Male 256 77 (30)

 Female 434 111 (26)

Education (n=683) <.001
 8–11 years 28 15 (54)

 High School 138 43 (31)

 Post-High Schoole 267 91 (34)

 College Graduate 163 30 (18)

 Post Graduate 87 9 (10)

 Missing 7 0 (0)

Income (n=622) .10
 $0–$19,999 104 37 (36)

 $20,000–$39,999 118 38 (32)

 $40,000–$59,999 127 33 (26)

 $60,000–$79,999 81 25 (31)

 $80,000–$99,999 63 10 (16)

 $100,000–$149,999 64 14 (22)

 $150,000 or higher 65 17 (26)

 Missing 68 14 (21)

Pain Severity (n=684) <.001
 None 25 1 (4)

 Mild 104 9 (9)

 Moderate 380 96 (25)

 Severe 175 82 (47)

 Missing 6 0 (0)
a

Denominators vary due to missing values, n=690 unless otherwise specified.

b

All numbers are n(%) except for age.

c

p-values compare those receiving and not receiving opioids using t-test for age and chi-square test for sex, education, income, and pain severity.