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Table 5 Changes in MMSE per year during follow-up

From: Exploring sex differences in Alzheimer’s disease: a comprehensive analysis of a large patient cohort from a memory unit

Sex

Patients (N)

Measures (M)

M/N

MMSE units/year (95%CI)

p-value

Sex interaction

 Males

1719

6198

3.6

-2.00 (-2.11,-1.90)

(ref)

-

 Females

4335

17,105

3.9

-2.06 (-2.12,-2.00)

0.40

 

Age at baseline

      

 <60 yrs

90

333

3.7

-3.68 (-4.11,-3.25)

(ref)

0.64

 60–69 yrs

318

1338

4.2

-2.88 (-3.10,-2.67)

< 0.01

 

 70–79 yrs

1691

7560

4.5

-2.06 (-2.15,-1.97)

< 0.01

 

 80–84 yrs

1911

7530

3.9

-1.92 (-2.00,-1.83)

< 0.01

 

 85 + yrs

2044

6542

3.2

-1.92 (-2.02,-1.82)

< 0.01

 

Education

      

 No formal education

1199

4695

3.9

-1.77 (-1.88,-1.65)

(ref)

0.42

 Primary School

3717

14,567

3.9

-2.03 (-2.10,-1.97)

< 0.01

 

 Secondary School

569

2148

3.8

-2.32 (-2.49,-2.15)

< 0.01

 

 University

409

1504

3.7

-2.66 (-2.86,-2.46)

< 0.01

 

 Unknown

160

389

2.4

-1.95 (-2.81,-1.09)

0.68

 

Marital status

      

 Married/Partnered

2940

11,854

4.0

-2.08 (-2.20,-1.96)

(ref)

0.54

 Widowed

2489

9356

3.8

-2.01 (-2.14,-1.88)

0.53

 

 Divorced/Separate

166

592

3.6

-1.71 (-2.04,-1.37)

0.05

 

 Single

311

1141

3.7

-2.05 (-2.30,-1.81)

0.87

 

 Unknown

148

360

2.4

-2.31 (-3.24,-1.38)

0.64

 

Cohabitation status

      

 Lives alone

1411

5501

3.9

-2.02 (-2.17,-1.88)

(ref)

0.58

 Lives with spouse/partner

2539

10,315

4.1

-2.01 (-2.14,-1.88)

0.93

 

 Lives with someone (other)

946

3469

3.7

-2.16 (-2.33,-1.99)

0.12

 

 Domestic group

633

2458

3.9

-1.99 (-2.15,-1.83)

0.77

 

 Nursing home

216

622

2.9

-2.03 (-2.84,-1.22)

0.98

 

 Unknown

309

938

3.0

-2.25 (-2.59,-1.91)

0.19

 

Caregiver

      

 None

2226

9392

4.2

-2.01 (-2.09,-1.92)

(ref)

0.45

 Spouse/Partner

1032

4054

3.9

-2.18 (-2.32,-2.04)

0.03

 

 Son/Daughter

624

2346

3.8

-1.96 (-2.13,-1.79)

0.64

 

 Professional

624

1933

3.1

-2.02 (-2.21,-1.84)

0.87

 

 Residential Caregiver

195

577

3.0

-1.83 (-2.67,-0.99)

0.70

 

 Other

1353

5001

3.7

-2.08 (-2.20,-1.97)

0.27

 

Arthrosis

      

 no

2646

10,034

3.8

-2.14 (-2.21,-2.06)

(ref)

0.10

 yes

3245

12,710

3.9

-1.99 (-2.06,-1.92)

0.01

 

 unknown

163

559

3.4

-1.73 (-2.09,-1.38)

0.03

 

Depression

      

 no

4069

15,495

3.8

-2.11 (-2.17,-2.05)

(ref)

0.12

 yes

1658

6604

4.0

-1.87 (-1.97,-1.78)

< 0.01

 

 unknown

327

1204

3.7

-2.18 (-2.41,-1.94)

0.59

 
  1. Abbreviations: MMSE = Mini Mental State Examination
  2. Estimates for slope (95%CI) and significance obtained using a mixed model with random intercept and slope that includes all covariates plus age as main factors and their time interactions
  3. Sex interaction explored using a likelihood ratio test that compares this model with models that included an additional interaction between each factor and sex