Table 1.
Demographics, Psychiatric Comorbidities and Service Use of Patients with Schizophrenia and the Comparison Population with No Serious Mental Illness 2000–2007
| Characteristics | Overall (N=130,724) | Schizophrenia Group (N=65,362) | Non-SMI Comparison Group (N=65,362) |
|---|---|---|---|
| Mean age SD | 53.6 (14.8)* | 53.4 (14.9) | 53.8(14.6) |
| White: N (%) | 78220 (67.9)* | 37960 (64.2) | 40260(72.0) |
| Black: N (%) | 27608 (23.9) | 16470 (27.9) | 11138(19.9) |
| Hispanic: N (%) | 6184 (5.4) | 3099 (5.2) | 3085(5.5) |
| Other Race: N (%) | 3054 (2.7) | 1619 (2.7) | 1435(2.6) |
| Male: N (%) | 115006 (87.9) | 57503 (87.9) | 57503(87.9) |
| Meets Category C Cost Share Means Test: N (%) | 24850 (19.7)* | 8408 (13.2) | 16442(26.3) |
| Service Connected: N (%) | 62317 (47.7)* | 31928 (48.9) | 30389(46.5) |
| Married: N (%) | 47507 (36.5)* | 17493 (27.0) | 30014(45.9) |
| Substance Abuse Disorder Diagnosis: N (%) | 39618 (30.3)* | 26442 (40.5) | 13176(20.2) |
| Post Traumatic Stress Disorder: N (%) | 29074 (22.2)* | 16026 (24.5) | 13048(19.9) |
| Anxiety not PTSD: N (%) | 30936 (23.7)* | 17979 (27.5) | 12957(19.8) |
| Depression: N (%) | 71243 (54.5)* | 37413 (57.2) | 33830(51.8) |
| Tobaccos Exposure Diagnoses: N (%) | 45675 (34.9)* | 27005 (41.3) | 18670(28.6) |
| No-Mental Illness Diagnosis: N (%) | 47579(72.8) | ||
| Inpatient and Outpatient Service Use | |||
| Psychiatric inpatient days/person year | 1.84 | 3.52 | 0.19 |
| Non-Psychiatric inpatient days/person years | 2.95 | 4.27 | 1.65 |
| Psychiatric outpatient clinic visits/person year | 9.89 | 15.83 | 4.04 |
| Non-Psychiatric outpatient clinic visits/person year | 18.05 | 20.39 | 15.74 |
Tobacco exposure measure is defined as a diagnosis of tobacco-associated lung disease or diagnosis of tobacco use. Category C is a Veterans Administration means tested benefit categorization, Category C patients have sufficient income to be held responsible for cost-share payments on select services. Prevalence of psychiatric and tobacco associated comorbidities presented are cumulative over the 8-year study period. Inpatient and outpatient service use rates presented are calculated for all patients during all years. Chi squared and T tests used to determine statistical difference across groups.
Indicates p< 0.05.