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Table 3 Mixed regression analysis of outcomes before and after intervention (n = 280)

From: Effects of a physical activity and nutrition program in retirement villages: a cluster randomised controlled trial

Outcomes

Groupa

(intervention versus control)

Timea

(post versus baseline)

Group × timea

COE

SE

p

COE

SE

p

COE

SE

p

Weightb

−1.30

1.61

0.423

0.02

0.20

0.914

−0.54

0.27

0.047

Body mass indexb

−0.08

0.60

0.893

−0.04

0.08

0.651

−0.03

0.17

0.855

Waist-to-hip ratiob

−0.01

0.01

0.468

0.01

0.01

0.143

−0.01

0.01

0.243

Systolic blood pressureb

−0.25

2.21

0.910

1.01

1.36

0.457

−0.79

2.41

0.743

Diastolic blood pressureb

0.57

1.28

0.658

0.92

0.52

0.077

−2.16

1.01

0.032

Walking timebc

0.12

0.14

0.379

−0.02

0.17

0.909

0.23

0.20

0.257

Sitting timed

0.02

0.04

0.558

0.02

0.04

0.640

−0.11

0.05

0.027

Moderate activityd

0.96

0.36

0.008

0.44

0.17

0.011

0.07

0.21

0.726

Vigorous activitye

0.34

0.36

0.347

0.47

0.34

0.170

−0.26

0.40

0.513

Strength exercisee

−0.26

0.30

0.387

0.12

0.19

0.515

1.14

0.31

<0.001

Frequent fruit intakee

0.24

0.25

0.335

−0.30

0.19

0.118

0.63

0.25

0.012

Frequent vegetable intakee

0.42

0.36

0.241

−0.30

0.23

0.190

0.39

0.45

0.378

Fibre intake scoreb

0.05

0.09

0.588

0.02

0.04

0.545

0.07

0.05

0.189

Fat intake scoreb

−0.05

0.05

0.340

0.05

0.03

0.106

0.04

0.04

0.285

Fat avoidance scoreb

0.13

0.12

0.266

0.12

0.05

0.023

−0.06

0.07

0.418

  1. COE coefficient, SE standard error
  2. aadjusted for age (years), height, gender, education level (secondary school or below, trade certificate/diploma, university), relationship status (no partner, with partner), smoking status (never, former/current) and co-morbidity (no, yes)
  3. blinear mixed regression model
  4. clogarithmic transformed
  5. dgamma mixed regression model
  6. elogistic mixed regression model