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Table 1 Baseline patient characteristics by level of medication adherence in the 6 months prior to enrollment (N = 2010)

From: Medication adherence levels and differential use of mental-health services in the treatment of schizophrenia

Characteristic Adherent (n = 1758) Partially adherent (n = 36) Non-adherent (n = 216) p-value
Age at baseline, mean ± SD years 42.4 ± 11.0 38.5 ± 9.3 39.9 ± 11.6 0.007
Male, n (%) 1075 (61.2) 21 (58.3) 135 (62.5) 0.870
African American, n (%) 651 (37.2) 21 (58.3) 77 (36) 0.031
Schizoaffective diagnosis, n (%) 583 (33.2) 13 (36.1) 66 (30.6) 0.684
Illness duration, mean ± SD years 21.7 ± 11.4 19.7 ± 10.0 20.3 ± 12.7 0.136
Uninsured, n (%) 105 (6.1) 5 (13.9) 21 (10.0) 0.020
PANSS total score, mean ± SD 70.3 ± 18.6 72.2 ± 22.4 70.9 ± 17.1 0.593
Quality of Life Scale, total score, mean ± SD 60.0 ± 22.3 58.9 ± 21.6 61.7 ± 22.4 0.781
Hospitalized at enrollment, n (%) 52 (2.96) 1 (2.78) 23 (10.65) < 0.001
Comorbid substance abuse disorder, n (%) 483 (27.47) 12 (33.33) 78 (36.11) 0.024
Comorbid personality disorder diagnosis, n (%) 268 (15.24) 2 (5.56) 36 (16.67) 0.228
Comorbid borderline intelligence/mental retardation, n (%) 176 (10.01) 5 (13.89) 13 (6.02) 0.118
Simpson-Angus total score, mean ± SD 4.34 ± 4.08 4.00 ± 4.17 4.15 ± 4.08 0.547
AIMS total score, mean ± SD 3.35 ± 4.13 2.94 ± 3.73 2.51 ± 3.14 0.137
  1. SD = standard deviation; PANSS = Positive and Negative Syndrome Scale; AIMS = Abnormal Involuntary Movement Scale