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Table 2 The effect of age, time, gender, cohort and chronic conditions on mobility during the follow-up

From: Longitudinal changes in mobility among nonagenarians: the Vitality 90+ Study

 

Model 1 (n = 948)

Model 2 (n = 948)

Model 3 (n = 948)

Model 4 (n = 934)

 

POR (95 % CI)

p-value

POR (95 % CI)

p-value

POR (95 % CI)

p-value

POR (95 % CI)

p-value

Agebaseline

0.47 (0.37–0.76)

<0.001

0.51 (0.40–0.65)

<0.001

0.59 (0.46–0.75)

<0.001

0.60 (0.47–0.77)

<0.001

Time

1.50 (0.00–1120)

0.91

2.24 (0.00–1752)

0.81

11.4 (0.01–11369)

0.49

4.66 (0.00–5733)

0.67

Agebaseline * Time

0.14 (0.00–108)

0.57

0.10 (0.00–78.4)

0.50

0.02 (0.00–24.0)

0.29

0.06 (0.00–64.7)

0.42

Gender (ref = women)

  

9.10 (4.72–17.5)

<0.001

9.64 (4.72–17.5)

<0.001

8.21 (4.32–15.6)

<0.001

Gender * Time

  

0.88 (0.74–1.05)

0.17

0.87 (0.73–1.03)

0.10

0.87 (0.73–1.03)

0.11

BL2003 (ref = BL2001)

    

5.02 (2.33–10.8)

<0.001

4.51 (2.16–9.44)

<0.001

BL2007 (ref = BL2001)

    

1.73 (1.01–2.95)

0.044

1.99 (1.18–3.33)

0.009

BL2003 * Time

    

0.77 (0.62–0.96)

0.021

0.79 (0.63–0.98)

0.032

BL2007 * Time

    

0.74 (0.65–0.83)

<0.001

0.74 (0.65–0.84)

<0.001

Chronic conditions

      

0.36 (0.29–0.46)

<0.001

Chronic conditions * Time

      

1.13 (0.92–1.38)

0.24

  1. POR proportional odds ratios, 95 % CI 95 % confidence intervals, BL base line, year when the participant answered the questionnaire for the first time
  2. Model 1: age, time and their interaction
  3. Model 2: age, time, gender and their interaction with time
  4. Model 3: age, time, gender, cohort and their interaction with time
  5. Model 4: age, time, gender, cohort, number of chronic conditions (0–7) and their interaction with time (n = 934, 14 participants did not have information about chronic conditions)