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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: J Hosp Med. 2013 Dec 6;9(2):82–87. doi: 10.1002/jhm.2113

Table 1.

Baseline characteristics of hospitalized Veterans by opioid exposure status during 6 months preceding hospitalization (N=122,794)

No opioids
N=66,899 (54.5%)
Occasional opioids
N=24,093 (19.6%)
Chronic opioids
N=31,802 (25.9%)
Variables
Age mean (SD) 68.7 (12.8) 66.5 (12.7) 64.5 (11.5)
Age N(%)
 <=59 (reference) 15,170 (22.7) 6,703 (27.8) 10,334 (32.5)
 60-65 15,076 (22.5) 5,973 (24.8) 8,983 (28.3)
 66-77 17,226 (25.8) 5,871 (24.4) 7,453 (23.4)
 >=78 19,427 (29.0) 5,546 (23.0) 5,032 (15.8)
Male N (%) 64,673 (96.7) 22,964 (95.3) 30,200 (95.0)
Race N (%)
 White 48,888 (73.1) 17,358 (72.1) 25,087 (78.9)
 Black 14,480 (21.6) 5,553 (23.1) 5,089 (16.0)
 Other 1,172 (1.8) 450 (1.9) 645 (2.0)
 Unknown 2,359 (3.5) 732 (3.0) 981 (3.1)
Income <=$20,000 N (%) 40,414 (60.4) 14,105 (58.5) 18,945 (59.6)
Rural residence N (%) 16,697 (25.0) 6,277 (26.1) 9,356 (29.4)
Region N (%)
 Northeast 15,053 (22.5) 4,437(18.4) 5,231(16.5)
 South 24,083(36.0) 9,390(39.0) 12,720(40.0)
 Midwest 16,000(23.9) 5,714(23.7) 7,762(24.4)
 West 11,763(17.6) 4,552(18.9) 6,089(19.2)
Charlson Comorbidity Index
mean (SD)
2.3(2.0) 2.6(2.3) 2.7(2.3)
Comorbidities N (%)
 Cancer (not metastatic) 11,818(17.7) 5,549(23.0) 6,874(21.6)
 Metastatic cancer 866(1.3) 733(3.0) 1,104(3.5)
 Chronic pain 25,748 (38.5) 14,811 (61.5) 23,894 (75.1)
 COPD 20,750(31.0) 7,876(32.7) 12,117(38.1)
 Diabetes, complicated 10,917(16.3) 4,620(19.2) 6,304(19.8)
 Heart failure 14,267(21.3) 5,035(20.9) 6,501(20.4)
 Renal disease 11,311(16.9) 4,586(19.0) 4,981(15.7)
 Dementia 2,180(3.3) 459(1.9) 453(1.4)
 Mental health other than PTSD 33,390(49.9) 13,657(56.7) 20,726(65.2)
 PTSD 7,216(10.8) 3,607(15.0) 5,938(18.7)
Palliative care use N(%) 1,407(2.1) 639(2.7) 1,024(3.2)

All comparisons were significant at p<.0001 except for Heart Failure (p=.0055).

COPD: Chronic Obstructive Pulmonary Disease; PTSD: Post Traumatic Stress Disorder.