Table 3 Logistic Regression Results Predicting Study Dropout via Baseline Health and Demographic Variables with Separate Analyses per Health Aspect (N = 4442)

Chronic conditions

0.92

[0.89; 0.96]

−4.07

< .001

 Age

1.01

[1.01; 1.02]

4.93

< .001

 Sex (female)

0.84

[0.74; 0.96]

−2.57

.010

 Low (Ref.)

1.00

–

–

–

 Intermediate

0.68

[0.55; 0.84]

−3.56

< .001

 Upper-intermediate

0.40

[0.30; 0.52]

−6.62

< .001

 High

0.38

[0.30; 0.49]

−7.34

< .001

Income

0.75

[0.67; 0.84]

−4.99

< .001

Partnership status

0.85

[0.73; 0.99]

−2.03

.043

Network size

0.90

[0.88; 0.92]

−8.66

< .001

OR

95%-CI

z

p

 Physical functioning

0.99

[0.99; 1.00]

−2.33

.020

 Age

1.01

[1.00; 1.01]

2.69

.007

 Sex (female)

0.84

[0.74; 0.95]

−2.65

.008

 Low (Ref.)

1.00

–

–

–

 Intermediate

0.70

[0.57; 0.88]

−3.16

.002

 Upper-intermediate

0.41

[0.31; 0.54]

−6.32

< .001

 High

0.40

[0.31; 0.52]

−6.91

< .001

Income

0.77

[0.69; 0.86]

−4.55

< .001

Partnership status

0.87

[0.74; 1.02]

−1.71

.088

Network size

0.90

[0.88; 0.92]

−8.98

< .001

OR

95%-CI

z

p

 Depression

1.00

[0.99; 1.01]

−0.67

.504

 Age

1.01

[1.00; 1.02]

3.67

< .001

 Sex (female)

0.84

[0.74; 0.96]

−2.50

.013

 Low (Ref.)

1.00

–

–

–

 Intermediate

0.69

[0.56; 0.85]

−3.39

< .001

 Upper-intermediate

0.40

[0.30; 0.53]

−6.56

< .001

 High

0.39

[0.30; 0.50]

−7.22

< .001

Income

0.76

[0.68; 0.85]

−4.79

< .001

Partnership status

0.85

[0.73; 1.00]

−2.00

.045

Network size

0.90

[0.88; 0.92]

−9.02

< .001

OR

95%-CI

z

p

Cognitive functioning

1.00

[0.99; 1.00]

−1.16

.247

Age

1.01

[1.00; 1.01]

2.79

.005

Sex (female)

0.86

[0.75; 0.98]

−2.28

.023

 Low (Ref.)

1.00

–

–

–

 Intermediate

0.70

[0.57; 0.87]

−3.18

.001

 Upper-intermediate

0.41

[0.31; 0.54]

−6.33

< .001

 High

0.40

[0.31; 0.52]

−6.86

< .001

Income

0.77

[0.69; 0.86]

−4.60

< .001

Partnership status

0.86

[0.74; 1.01]

−1.86

.062

Network size

0.90

[0.88; 0.92]

−8.98

< .001