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Psychology: Research and Review

Table 6 Hierarchical model with multivariate Poisson regression for frailty (n = 1030). FIBRA Unicamp, Elderly, 2008–2009

From: Frailty and depressive symptoms in older adults: data from the FIBRA study - UNICAMP

Variables

First step

Second step

Third step

 

PR*

95 % CI

p value

PR*

95 % CI

p value

PR*

95 % CI

p value

Age

 65–69

1.00

-

-

1.00

-

-

1.00

-

-

 70–74

1.42

0.90–2.26

0.136

1.44

0.90–2.28

0.126

1.30

0.81–2.06

0.275

 75–79

2.02

1.25–3.28

0.004

2.02

1.25–3.28

0.004

1.88

1.16–3.06

0.011

> = 80

3.71

2.30–5.99

<0.001

3.65

2.27–5.88

<0.001

3.05

1.88–4.95

<0.001

Schooling

 0

2.55

1.28–5.09

0.008

2.29

1.15–4.58

0.019

1.56

0.77–3.15

0.218

 1–4

1.64

0.84–3.21

0.146

1.52

0.78–2.96

0.224

1.14

0.58–2.25

0.705

 5–8

1.39

0.65–2.96

0.399

1.26

0.59–2.70

0.547

1.01

0.47–2.17

0.986

> = 9

1.00

-

-

1.00

-

-

1.00

-

-

No. of diseases

 0

   

1.00

-

-

1.00

-

-

 1–2

   

2.00

0.91–4.37

0.084

2.01

0.92–4.42

0.081

> = 3

   

3.28

1.51–7.14

0.003

2.74

1.26–5.97

0.011

GDS13

No

      

2.09

1.46–3.00

<0.001

Yes

      

1.00

-

-

GDS3

No

      

1.00

-

-

Yes

      

1.76

1.24–2.51

0.002

GDS15

No

      

1.00

-

-

Yes

      

1.72

1.21–2.44

0.003

GDS2

No

      

1.00

-

-

Yes

      

1.71

1.19–2.44

0.004

  1. Note.*PR = Prevalence ratio for frailty; (n = 891 non-frail and n = 139 frail)
  2. PR 95 % CI = 95 % confidence interval for prevalence ratio. Stepwise criteria for variable selection. Ref. reference level
  3. Variables considered in step 1: age, sex, schooling, marital status and family income; step 2: number of diseases and number of disabilities; step 3: items GDS1 to GDS15