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Table 2 Descriptive statistics for the dependent variables caregiver burden/depressiveness by group for the three measurement points (N = 304)

From: Can brief telephone interventions reduce caregiver burden and depression in caregivers of people with cognitive impairment? - long-term results of the German day-care study (RCT)

VariableDescriptivest-Test for independent samplesEffect size for mean difference
 MeanStandard DeviationΔM (SD)
(T2-T0)
t (df)p-valueCohen’s d [95%-CI]
Caregiver Burden
 Intervention group (N = 173)T011.718.00−.20 (5.39)at (302) = 1.53.1260.177
[−0.051; 0.406]
T110.937.77
T211.508.26
 Control group (N = 131)T012.987.48.76 (5.49)a
T112.837.90
T213.758.24
Depressiveness (reverse coded)
 Intervention group (N = 173)T011.906.03−.05 (5.17)bt (302) = 1.49.1360.173
[−0.056; 0.401]
T112.485.92
T211.855.96
 Control group (N = 131)T012.075.61−.98 (5.65)b
T111.695.66
T211.096.04
  1. aPositive values depict a worsening in the development of the outcome
  2. bNegative values depict a worsening in the development of the outcome