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Table 1 Outcome Measures

From: DeLLITE Depression in late life: an intervention trial of exercise. Design and recruitment of a randomised controlled trial

  Outcome Measure Description Explanation
Primary Functional status – observed Short Physical Performance Battery (SPPB) score [16, 17] SPPB group and summary scores show a clear gradient. Lower scores correlate with higher mortality rates and nursing home admissions.
  Functional status- self report Nottingham Extended Activities of Daily Living Scale (NEADL) score [37] A well validated measure of self report functional status that is sensitive to change.
Secondary Depressive symptoms Geriatric Depression Scale (GDS-15) score An extensively used and well validated scale [38]. It can be used both as a screening tool for depression and as a measure of change of symptoms [43, 44]. GDS-15 = 5 indicates significant depressive symptoms.
  Quality of life SF-36 score [39] This validated measure evaluates eight subscales of health-related quality of life.
  Physical Activity Auckland Heart Study (AHS) Physical Activity Questionnaire score [40, 45]. Validated [45] self- report questionnaire.
  Falls and injuries Self-reported falls and injuries in the last 12 months. Medical treatment for injuries from falls This will help determine if falls are reduced or increased by the programme (ie: a potential harm).