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Table 3 Clinical characteristics of caregivers categorized by validated cutoff values of FBIS-24 and ZBI-22 (n = 292)

From: A comparison of psychometric properties of two common measures of caregiving burden: the family burden interview schedule (FBIS-24) and the Zarit caregiver burden interview (ZBI-22)

VariablesTotalFBIS ≤ 23FBIS > 23z/χ2PZBI ≤ 48ZBI > 48z/χ2P
Depression (PHQ-9)9 (4–15; 0–27)6 (2–9; 0–27)14 (8–18.5; 0–27)−8.30< 0.0016 (2–9; 0–26)15 (10–20; 0–27)−9.58< 0.001
Anxiety (GAD-7)9 (4–15; 0–21)6 (1–9; 0–21)13 (7–18; 0–21)−7.99< 0.0016 (1–10; 0–21)14 (9–18; 0–21)−8.95< 0.001
Family functioning (APGAR)7 (4–9; 0–10)8 (5–10;0–10)6 (3–9; 0–10)3.300.0018 (5–10; 0–10)5 (2–8; 0–10)5.12< 0.001
PLS functioning (GAF)41 (20–61; 1–99)55 (30–68;4–90)30 (15–55; 1–99)5.21< 0.00155 (30–65;4–99)23 (13–50.5; 1–85)6.45< 0.001
  1. Note: numbers in bold means significant at P = 0.01
  2. FBIS-24: 24-item Family Burden Interview Schedule; ZBI-22: 22-item Zarit Burden Interview; PHQ-9: Patient Health Questionnaire-9; GAD-7: Generalized Anxiety Disorder Scale-7; APGAR: Family Adaptation, Partnership, Growth, Affection and Resolve Index scale; GAF: Global Assessment of Functioning