Skip to main content
. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: J Am Geriatr Soc. 2010 Apr 14;58(5):908–913. doi: 10.1111/j.1532-5415.2010.02810.x

Table 1.

Characteristics of Patients

Patient Characteristic Entire Cohort
N=798,217
Inpatient Stay
Cohort
N=73,137
New Start Cohort
N=421,536
Gender
 Female 59,080 (7.4) 3,831 (5.2) 33,155 (7.9)
 Male 739,137 (92.6) 69,306 (94.8) 388,381 (92.1)
Race
 African American 108,612 (13.6) 18,178 (24.9) 55,614 (13.2)
 White 671,008 (84.1) 53,094 (72.6) 356,031 (84.5)
 Other 18,597 (2.3) 1,865 (2.6) 9,891 (2.4)
Hispanic
 No 759,663 (95.2) 69,393 (94.9) 399,815 (94.9)
 Yes 38,554 (4.8) 3,744 (5.1) 21,721 (5.2)
Age
 18-44 years old 114,073 (14.3) 19,161 (26.2) 63,093 (15.0)
 45-64 years old 387,218 (48.5) 42,960 (58.7) 199,515 (47.3)
 >=65 years old 296,926 (37.2) 11,016 (15.1) 158,928 (37.7)
Marital Status
 Married 437,768 (54.8) 25,999 (35.5) 233,945 (55.5)
 Not Married 356,885 (44.7) 47,025 (64.3) 185,801 (44.1)
Any substance abuse*
 No 620,569 (77.7) 24,841 (34.0) 335,435 (79.6)
 Yes 177,648 (22.3) 48,296 (66.0) 86,101 (20.4)
Comorbid Psychiatric Diagnosis
 No 451,906 (56.6) 29,923 (40.9) 249,046 (59.1)
 Yes 346,312 (43.4) 43,214 (59.1) 172,490 (40.9)
Charlson Medical Comorbidity
 0 476,676 (59.7) 47,468 (64.9) 268,731 (63.8)
 >=1 321,541 (40.3) 25,669 (35.1) 152,805 (36.3)
Region (location on entry into cohort)
 North East 161,781 (20.3) 15,793 (21.6) 81,768 (19.4)
 Central 179,746 (22.5) 17,852 (24.4) 94,601 (22.4)
 South 302,843 (37.9) 25,257 (34.5) 164,382 (39.0)
 West 153,847 (19.3) 14,235 (19.5) 80,785 (19.2)

Cell values are N (%).

*

Diagnosis of alcohol or other substance abuse 12 months prior to entry through end of study period

Diagnosis of PTSD, Personality Disorder or Other Anxiety Disorder 12 months prior to entry through end of study period