Table 3.
Intention-to-treat analysis: Anthropometric, fruit and vegetable consumption changes from baseline to six months (coaching period) and twelve, and from six months to twelve months (no contact period)
| COACHING PERIOD | NO CONTACT PERIOD | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
6-month |
12-month |
6-12 months† |
|||||||||
| |
(end of coaching) † |
(maintenance follow-up) † |
|
|||||||||
| |
Baseline |
6-month |
Mean change |
Adjusted € change (95% CI) |
Baseline |
12-month |
Mean change |
Adjusted € change (95% CI) |
6-month |
12-month |
Mean change |
Adjusted € change (95% CI) |
|
Weight (kg)¥ |
n=1000 |
|
|
n=1000 |
|
|
n=1006 |
|
|
|||
| Mean |
86.5 |
84.7 |
−1.8** |
−1.8 |
86.5 |
84.9 |
−1.6** |
−1.6 |
84.7 |
84.9 |
0.2* |
0.2 |
| (SD) |
(20.0) |
(19.6) |
(3.9) |
(−2.1,-1.6) |
(20.0) |
(19.8) |
(4.3) |
(−1.9,-1.4) |
(19.7) |
(19.8) |
(2.2) |
(−0.2,0.5) |
|
Waist Circumference (cm)¥ |
n=756 |
|
|
n=756 |
|
|
n=806 |
|
|
|||
| Mean |
101 |
98.8 |
−2.2** |
−2.2 |
101 |
98.4 |
−2.6 |
−2.6** |
98.6 |
98.3 |
−0.3* |
−0.3 |
| (SD) |
(15.8) |
(15.9) |
(4.3) |
(−2.5,-1.9) |
(15.8) |
(16.3) |
(5.8) |
(−3.0,-2.2) |
(15.8) |
(16.1) |
(4.2) |
(−0.8,0.2) |
|
Body Mass Index (kg/m2)¥ |
n=998 |
|
|
n=998 |
|
|
n=1001 |
|
|
|||
| Mean |
31 |
30.5 |
−0.5** |
−0.5 |
31 |
30.5 |
−0.5** |
−0.5 |
30.6 |
30.5 |
−0.1 |
−0.1 |
| (SD) |
(6.4) |
(6.4) |
(1.2) |
(−0.5,-0.4) |
(6.4) |
(6.4) |
(1.8) |
(−0.7,-0.4) |
(6.4) |
(6.4) |
(1.4) |
(−0.2,0.1) |
|
Fruit serves per day# |
n=1010 |
|
|
n=1011 |
|
|
n=1011 |
|
|
|||
| Mean |
1.7 |
1.8 |
0.1** |
0.1 |
1.7 |
1.8 |
0.1** |
0.1 |
1.8 |
1.8 |
0.0 |
0.0 |
| (SD) |
(1.3) |
(1.1) |
(0.8) |
(0.1, 0.2) |
(1.3) |
(1.1) |
(0.8) |
(0.1,0.2) |
(1.1) |
(1.1) |
(0.5) |
(−0.1,0.1) |
|
Vegetable serves per day# |
n=1010 |
|
|
n=1010 |
|
|
n=1011 |
|
|
|||
| Mean |
2.8 |
3.3 |
0.5** |
0.5 |
2.8 |
3.2 |
0.4** |
0.4 |
3.3 |
3.2 |
−0.2** |
−0.1 |
| (SD) |
(1.6) |
(1.5) |
(1.2) |
(0.4,0.6) |
(1.6) |
(1.5) |
(1.3) |
(0.3,0.4) |
(1.5) |
(1.5) |
(0.9) |
(−0.2,0.1) |
|
Health enhancing PA (sessions)#β |
n=1010 |
|
|
n=1010 |
|
|
n=1011 |
|
|
|||
| Mean |
3.9 |
4.6 |
0.7** |
0.7 |
3.9 |
4.4 |
0.5** |
0.5 |
4.6 |
4.4 |
−0.2* |
−0.2 |
| (SD) | (3.9) | (3.9) | (2.8) | (0.5,0.8) | (3.9) | (4.5) | (3.5) | (0.3,0.7) | (3.9) | (4.5) | (2.8) | (−0.4,0.1) |
Notes:
** significant at p-value<0.001; * significant at p-value <0.05.
Ŧ Baseline and six month data is sourced from the GHS coaching sample and the twelve month data is sourced from independent evaluation coaching cohort data.
£ Includes data imputed from last observed record (baseline, 3-months or 6-months) where data was missing.
† Paired analysis; ¥ Matched pairs t-test; # non parametric (wilcoxon test).
β Health enhancing Physical Activity (PA) sessions – based on the number of sessions per week for walking and moderate physical activity that were ≥30minutes and for vigorous physical activity that were ≥ 20minutes.
€ Adjusted for baseline values and age, gender, education level, employment status, Socio Economic Index For Areas, and Region; presents marginal means (or mean differences) with 95% Confidence Interval (CI) from linear mixed models that control for repeated measures and adjust for potential confounders, with the outcome time points of 6-months and 12-months.