| Literature DB >> 32399731 |
Lisa McGarrigle1,2,3, Kenneth Rockwood1,2,4.
Abstract
BACKGROUND: Goal Attainment Scaling (GAS) is an individualized outcome measure that allows the setting of personalized treatment goals. We compared the responsiveness of GAS when individuals set only one goal instead of the recommended three or more goals.Entities:
Keywords: Assessment; Dementia; Frailty; Goal attainment; RCT; Responsiveness
Year: 2020 PMID: 32399731 PMCID: PMC7218040 DOI: 10.1186/s41687-020-00196-8
Source DB: PubMed Journal: J Patient Rep Outcomes ISSN: 2509-8020
Characteristics of the VISTA and MGAT studies
| Double-blind, placebo controlled RCT | Single-blind RCT – Assessments were performed by healthcare professionals blind to patient status | |
| Community-dwelling adults with mild to moderate Alzheimer’s Disease ( | Rural, community-dwelling, frail elderly patients ( | |
| Patients were randomized to receive either galantamine (16–24 mg/d) or a placebo for a 4-month period | Patients were randomized to receive either usual care by family physicians or care in which physician efforts were supplemented by a specialized geriatric intervention over a 3-month period | |
| Goal Attainment Scaling (GAS) | Goal Attainment Scaling (GAS) | |
Assessment: Two independent GAS assessments were conducted at each time-point. - Patient/caregiver-rated GAS was assessed in a clinician-facilitated interview - Clinician-rated GAS was assessed following interviews with patients and/or caregivers. | Assessment: Patient-rated GAS was assessed in a clinician-facilitated interview both at baseline and three-month follow-up | |
Goal setting: Goals were freely selected based on symptoms considered important to the patient | Goal setting: Participants selected goals based on a list of 42 symptoms or problems identified by the Comprehensive Geriatric Assessment (CGA) | |
Goal weighting: Patients and caregivers ranked (weighted) their goals in order of importance. Clinicians did not rank goals, so all were assigned a weighting of ‘1’ | Goal weighting: As goals were not ranked, all were assigned a weighting of ‘1’ | |
Baseline scores: Baseline raw GAS scores set at ‘0’ | Baseline scores: Baseline raw GAS scores were set at ‘-1’, except for a small number of participants ( | |
Goal selection for one-goal GAS: One-goal GAS scores were derived for patients/caregivers using their highest-ranking goal One-goal GAS scores were derived for clinicians by selecting the first goal listed for each patient | Goal selection for one-goal GAS: One-goal GAS scores were derived by randomly selecting a goal for each participant using a custom excel macro | |
Number of Goals Set: The median number of goals set was 3 (range 1–6) | Number of Goals Set: The median number of goals set was 5 (range 2–15) |
Fig. 1Flow chart of VISTA and MGAT subjects included in multiple- and one-goal GAS analyses. In VISTA, analyses were conducted on patient-rated GAS scores and clinician-rated GAS scores. In MGAT, analyses were conducted on outcome goal scores (goals directed towards outcomes of care) and total goal scores (goals directed towards outcomes, but also those focused on prevention or the completion of a particular process, which may be easier to achieve)
Sample characteristics at baseline
| Intervention | Control | Intervention | Control | |
|---|---|---|---|---|
| Age in years, mean (SD, range) | 76 (8, 50–93) | 78 (8, 55–91) | 81 (7, 66–97) | 82 (7, 66–97) |
| Male sex, no. (%) of patients | 23 (36) | 25 (38) | 41 (43) | 37 (43) |
| MMSE score, mean (SD, range) | 20.8 (3.3, 11–26) | 19.9 (4.2, 9–27) | 22.7 (6.3, 6–30) | 22.9 (7.1, 0–30) |
Fig. 2Responsiveness gains and losses in relation to number of goals set in VISTA and MGAT
VISTA patient- and clinician-rated GAS scores and treatment response for multiple- and one-goal GAS
| Patient-rated GAS | 66 | 50.0 (0.0) | 52.2 (9.0) | 57 | 50.0 (0.0) | 54.7 (10.2) | .15 | 0.26 | 9.6 |
| Clinician-rated GAS | 65 | 50.0 (0.0) | 50.6 (9.2) | 60 | 50.0 (0.0) | 55.1 (9.5) | .01 | 0.48 | 9.3 |
| Patient-rated GAS | 66 | 50.0 (0.0) | 52.1 (9.7) | 61 | 50.0 (0.0) | 53.1 (9.4) | .56 | 0.10 | 9.6 |
| Clinician-rated GAS | 66 | 50.0 (0.0) | 51.3 (8.9) | 61 | 50.0 (0.0) | 53.9 (8.5) | .10 | 0.29 | 8.7 |
Note. SRMs were derived as the mean difference between treatment groups divided by the pooled standard deviation of their change. SD Pooled Standard Deviation of Change
MGAT patient- and clinician-rated GAS scores and treatment response for multiple- and one-goal GAS
| Outcome Goal GAS | 75 | 36.1 (1.4) | 40.6 (5.6) | 81 | 35.8 (1.3) | 48.1 (6.7) | <.001 | 1.29 | 6.2 |
| Total Goal GAS | 80 | 34.9 (0.8) | 38.7 (4.1) | 85 | 34.8 (1.0) | 46.4 (5.9) | <.001 | 1.52 | 5.2 |
| Outcome Goal GAS | 78 | 39.8 (1.5) | 43.1 (5.9) | 84 | 39.8 (1.5) | 48.8 (7.1) | <.001 | 0.89 | 6.3 |
| Total Goal GAS | 80 | 39.9 (1.1) | 42.8 (5.6) | 85 | 40.0 (0.0) | 47.1 (5.7) | <.001 | 0.75 | 5.6 |
One-Goal GAS sensitivity analysisa
| Clinician-Rated GAS | 66 | 50.0 (0.0) | 50.5 (8.7) | 61 | 50.0 (0.0) | 52.6 (9.1) | .19 | 0.24 | 8.9 |
| Outcome Goal GAS | 76 | 40.0 (0.0) | 43.8 (6.5) | 84 | 39.9 (1.0) | 48.8 (6.0) | <.001 | 0.82 | 6.3 |
| Total Goal GAS | 79 | 40.0 (0.0) | 42.5 (4.8) | 84 | 40.0 (0.0) | 47.6 (7.3) | <.001 | 0.82 | 6.2 |
aOne-Goal GAS analyses (clinician-rated GAS in VISTA and both outcome and total goal GAS in MGAT) repeated with a new set of randomly selected goals
| Domain | One-Goal GAS | Multiple-Goal GAS | ||||
|---|---|---|---|---|---|---|
| Patient-Rated GAS | ||||||
| Behaviour | 14 (21.2) | 9 (14.1) | 23 (17.7) | 46 (20.0) | 36 (16.7) | 82 (18.4) |
| Cognition | 35 (53.0) | 34 (53.1) | 69 (53.1) | 101 (43.9) | 96 (44.7) | 197 (44.3) |
| Function | 12 (18.2) | 15 (23.4) | 27 (20.8) | 56 (24.3) | 48 (22.3) | 104 (23.4) |
| Leisure | 3 (4.5) | 5 (7.8) | 8 (6.2) | 14 (6.1) | 18 (8.4) | 32 (7.2) |
| Social | 2 (3.0) | 1 (1.6) | 3 (2.3) | 13 (5.7) | 17 (7.9) | 30 (6.7) |
| Clinician-Rated GAS | ||||||
| Behaviour | 26 (39.4) | 17 (26.6) | 43 (33.1) | 44 (22.8) | 38 (20.1) | 82 (21.5) |
| Cognition | 6 (9.1) | 11 (17.2) | 17 (13.1) | 48 (24.9) | 57 (30.2) | 105 (27.5) |
| Function | 33 (50.0) | 33 (51.6) | 66 (50.8) | 64 (33.2) | 57 (30.2) | 121 (31.7) |
| Leisure | 1 (1.5) | 3 (4.7) | 4 (3.1) | 21 (10.9) | 21 (11.1) | 42 (11.0) |
| Social | – | – | – | 16 (8.3) | 16 (8.5) | 32 (8.4) |
| Goal Domain (Number, % of total goals) | Goal Type | Number |
|---|---|---|
| Patient-Rated One-Goal GAS | ||
| Behaviour (23, 17.7%) | Agitation/Irritation | 5 |
| Appetite | 1 | |
| Delusions | 4 | |
| Hoarding/Hiding | 1 | |
| Low Mood | 5 | |
| Repetitive Behaviour | 1 | |
| Sleep Disturbances | 6 | |
| Cognition (69, 53.1%) | Attention/Concentration | 5 |
| Disorientation -Time | 10 | |
| Disorientation-Place/Space | 3 | |
| Expressive Language Difficulty | 2 | |
| Following Instructions/Multi-Tasking | 2 | |
| Judgement/Problem Solving | 1 | |
| Misplacing | 6 | |
| Physical Complaints | 1 | |
| Prospective Memory Impairment | 3 | |
| Recalling Recent Events | 11 | |
| Remembering Names | 10 | |
| Repetition | 13 | |
| Word Finding Difficulty | 2 | |
| Function (27, 20.8%) | ADL-Bathing | 1 |
| ADL-Dressing | 4 | |
| ADLs | 2 | |
| IADL-Dishes | 1 | |
| IADL-Driving | 1 | |
| IADL-Finances | 1 | |
| IADL-Household Chores/Repairs | 1 | |
| IADL-Meal Preparation | 2 | |
| IADL-Medication | 4 | |
| IADL-Operating Appliances/Devices | 2 | |
| IADL-Telephone Use | 1 | |
| Independence | 2 | |
| Physical Complaints | 5 | |
| Leisure (8, 6.2%) | Loss of Hobbies/Pastimes | 8 |
| Social (3, 2.3%) | Social Interaction/Activities | 3 |
| Clinician-Rated One-Goal GAS | ||
| Behaviour (43, 33.1%) | Agitation/Irritation | 21 |
| Anxiety | 8 | |
| Apathy/Initiative | 3 | |
| Appetite | 5 | |
| Delusions | 2 | |
| Flat Affect | 1 | |
| Inappropriate Behaviour | 1 | |
| Low Mood | 2 | |
| Cognition (17, 13.1%) | Comprehension | 2 |
| Disorientation -Time | 1 | |
| Disorientation-Place/Space | 3 | |
| Expressive Language Difficulty | 1 | |
| Following Instructions/Multi-Tasking | 4 | |
| Misplacing | 2 | |
| Prospective Memory Impairment | 2 | |
| Recent Memory Impairment | 1 | |
| Repetition | 1 | |
| Function (66, 50.8%) | ADL-Bathing | 9 |
| ADL-Dressing | 11 | |
| ADL-Personal Hygiene | 3 | |
| ADLs | 1 | |
| Apraxia | 1 | |
| IADL-Dishes | 1 | |
| IADL-Driving | 3 | |
| IADL-Finances | 2 | |
| IADL-Household Chores/Repairs | 7 | |
| IADL-Meal Preparation | 11 | |
| IADL-Medication | 7 | |
| IADL-Telephone Use | 3 | |
| IADLs | 2 | |
| Independence | 4 | |
| Physical Complaints | 1 | |
| Leisure (4, 3.1%) | Loss of Hobbies/Pastimes | 4 |