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Table 2 Evaluation of balance of the BelRAI covariables between study arms by disability profile

From: Evaluation of bottom-up interventions targeting community-dwelling frail older people in Belgium: methodological challenges and lessons for future comparative effectiveness studies

Family carer Low limit. IADL (cogn.) Func. Func., cogn. Func., cogn., behav.
Without Non-resident Co-resident Without Non-resident Co-resident Without Non-resident Co-resident Without Non-resident Co-resident Without Non-resident Co-resident
Activities of Daily Life Scale (ADL)
 smd 0.06 0.53 0.32 0.09 0.01 0.2 0.18 0.2 0.14 0.35 0.16 0.15 1.72 0.35 0.34
 VR 1.11 1.73 1.95 1.88 1.64 1.03 1.03 1.73 2.26 2.67 1.15 1.43 1.68 1.37
Instrumental Activities of Daily Life Scale (IADL)
 smd 0.11 0.36 0.19 0.3 0.05 0.29 0.21 0.11 0.39 0.36 0.01 0.05 1.26 0.35 0.51
 VR 1.55 1.1 1.34 1.88 2.18 4.67 1.57 1.69 2.6 1.04 1 1.13 1 1.61
Cognitive Performance Scale (CPS)
 smd 0.08 0.1 0.24 0.26 0 0.13 0.39 0.01 0 0.49 0.05 0.12 0.8 0.14 0.74
 VR 1.11 1.16 1.03 1.84 1.47 1.59 3.96 1.2 1.01 1.5 1.07 1.18 2.21 2.01
Depression Rating Scale (DRS)
 smd 0.57 0.25 0.25 0.27 0.16 0.2 0.03 0.02 0.04 0.44 0.2 0.1 1.44 0.14 0.08
 VR 3.18 1.26 2.12 1.26 1.13 1.69 2.01 1.35 1.15 5.86 1.24 1.43 1.8 1.12
Aggressive Behavior Scale (ABS)
 smd 0.32 0.2 0.18 0.32 0.12 0.06 0.36 0.16 0.02 0.6 0.26 0.24 0.66 0.13 0.01
 VR 5.25 1.32 2.36 2.56 1.23 11.91 2.33 1.19 6.47 3.64 2.72 1.29 1.26
Average Standardized Mean Difference (SMD) 0.3 0.24 0.24 0.24 0.11 0.21 0.2 0.11 0.12 0.44 0.13 0.15 1.02 0.26 0.32
Geometric Mean Variance Ratio (GMVR) 1.44 1.65 1.56 1.74 1.66 1.6 2.52 1.5 1.42 2.87 1.44 1.42 1.54 1.38
Treated
 N 740 965 335 267 1135 530 576 2234 1011 121 919 1276 29 214 431
Control
 N 41 52 27 30 70 49 38 210 147 9 54 144 1 10 24
  1. The evaluation of the balance of the BelRAI covariables was carried out for each of the propensity score models, that is, for each level of presence of an informal caregiver (without a family carer, with a non-resident family carer, with a co-resident family carer) within different disability profiles (Low limit. Low-level limitations, IADL (cogn.) IADL and low level of cognitive impairment, Func Functional limitations, Func., cogn. Functional & cognitive impairments, func., cogn., behav. Functional, cognitive & behavioural problems). smd Standardised mean difference, VR Variance ratio, SMD Average standardized mean difference, GMVR Geometric mean variance ratio, N Indicates the number of participants per group studied