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. 2021 Oct 2;44(5-6):448–464. doi: 10.1177/01640275211045603

Table 4:

Results of Studies Examining Differences between Groups.

Factor Citation Statistical analysis Finding interpretation
Depressive Symptoms Aguilar-Navarro, 2019 a
Aliberti, 2018 a
Ge, 2020 a
Kwan, 2019 a
Rivan, 2019 b
Rivan, 2020 b
Shimada, 2016 a
Wu, 2020 c
Chi-square
Chi-square
Chi-square
t-test, chi-square, Mann-Whitney U
t-test
t-test
t-test
one-way ANOVA
Significant at <0.001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Comorbid group greater number of symptoms than peers
Depression and anxiety Li, 2020 a Chi-square Significant at <0.0001 Comorbid group report more problems than peers
Marital status Aliberti, 2018 a
Li, 2020 a
Rivan, 2019 b
Wu, 2020 c
Chi-square
Chi-square
Chi-square
Chi-square
Significant at <0.001
Significant at <0.0001
Not significant =0.936
Not significant +0.619
Comorbid group less likely to be married than peers
Comorbid group less likely to be married than peers
No difference in marital status across groups
No difference in marital status across groups
Living alone status Rivan, 2020 b
Shimada, 2016 a
Wu, 2020 c
Chi-square
Chi-square
Chi-square
Significant at <0.05
Significant at <0.001
Not Significant =0.910
Comorbid group more likely to live alone than peers
Comorbid group more likely to live alone than peers
No difference in co-residence status across groups
Education level Aliberti, 2018 a
Kwan, 2019 a
Li, 2020 a
Rivan, 2019 b
Rivan, 2020 b
Shimada, 2016 a
Wu, 2020 c
Chi-square
t-test, chi-square, Mann-Whitney U
Chi-square
Chi-square
t-test
t-test
One-way ANOVA
Significant at <0.001
Not significant =0.053
Significant at <0.0001
Significant at <0.001
Significant at <0.001
Significant at <0.001
Not significant =0.102
Comorbid group less years in education than peers
No difference in education years across groups
Comorbid group less years in education than peers
Comorbid group less years in education than peers
Comorbid group less years in education than peers
Comorbid group less years in education than peers
No difference in education years across groups
Employment status Rivan, 2019 b Chi-square Not significant =0.652 No difference in employment status across groups
Net worth Aliberti, 2018 a ANOVA or Kruskal-Wallis Significant at <0.001 Comorbid group has less net worth than peers
Household income Rivan, 2019 b
Rivan, 2020 b
Chi-square
t-test
Significant at <0.05
Significant at =0.001
Comorbid group has less income than peers
Comorbid group has less income than peers
Social Support Rivan, 2019 b t-test Significant at <0.001 Comorbid group reports less support than peers

astudy has four groups to compare a healthy group, a frail only group, a cognitively impaired only group and a comorbid group with both frailty and cognitive impairment

bstudy has two groups to compare a healthy group and a comorbid group with both frailty and cognitive impairment

cstudy has three groups to compare one with dementia and no frailty, one with dementia and prefrailty and a comorbid group with dementia and frailty