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Table 2 Unadjusted means and (Standard Deviations) by group and time effects on distal outcomes and mediators

From: A comparison of a social support physical activity intervention in weight management among post-partum Latinas

 

Baseline

6 months

12 months

 

p-values

 

Variable

M (SD)

M (SD)

M (SD)

Group

Time

Group x time

Body fat (%)a

      

Attention control

38.55 (5.25)

38.19 (6.05)

37.72 (5.36)

.9645

.0267

.0170

Intervention

38.57 (3.98)

37.34 (4.88)

37.97 (4.37)

   

Waist-to-hip ratioa

      

Attention control

0.83 (0.07)

0.81 (0.05)

0.79 (0.05)

.1662

<.0001

.4177

Intervention

0.81 (0.07)

0.80 (0.06)

0.79 (0.06)

   

Weight (kg)a

      

Attention control

73.19 (10.40)

72.68 (11.52)

72.54 (11.30)

.6092

.1173

.6129

Intervention

73.75 (9.50)

71.82 (9.97)

71.99 (10.38)

   

Depressiona

      

Attention control

8.69 (4.71)

7.80 (5.05)

6.98 (4.29)

.6372

.0335

.8361

Intervention

8.21 (5.22)

7.05 (5.36)

7.00 (5.69)

   

Social support for exercisea

      

Attention control

1.73 (0.53)

1.81 (0.55)

1.83 (0.57)

.4938

.0022

.0037

Intervention

1.75 (0.54)

2.05 (0.51)

1.72 (0.53)

   

MOS Emotional/informationala

      

Attention control

3.95 (0.87)

3.95 (0.93)

4.09 (0.90)

.0369

.4302

.3627

Intervention

3.81 (1.09)

3.56 (1.12)

3.69 (1.10)

   

MOS Tangiblea

      

Attention control

3.68 (1.07)

3.72 (1.02)

3.70 (1.02)

.0523

.2240

.1825

Intervention

3.61 (1.17)

3.19 (1.17)

3.29 (1.14)

   

MOS Affectionatea

      

Attention control

4.34 (0.84)

4.35 (0.90)

4.46 (0.81)

.1926

.6302

.7454

Intervention

4.24 (0.89)

4.17 (0.98)

4.27 (0.88)

   

MOS Positive social interactionsa

      

Attention control

4.00 (0.91)

4.01 (0.85)

4.12 (0.92)

.4282

.3800

.3857

Intervention

4.06 (1.04)

3.81 (0.96)

3.93 (0.95)

   

MOS Overalla

      

Attention control

3.95 (0.81)

3.97 (0.86)

4.06 (0.84)

.0636

.4512

.2854

Intervention

3.87 (0.98)

3.61 (0.99)

3.73 (0.95)

   

SBASa

      

Attention control

1.60 (0.70)

1.78 (0.71)

2.06 (0.78)

<.0001

<.0001

<.0001

Intervention

1.58 (0.67)

2.63 (0.94)

2.82 (0.98)

   

Total stepsb

      

Attention control

4909.74 (2255.70)

6040.16 (2561.94)

6425.04 (3390.90)

.0436

<.0001

.0177

Intervention

5120.33 (2244.01)

7575.60 (2785.47)

6963.91 (3126.54)

   

Aerobic stepsb

      

Attention control

369.64 (646.03)

553.55 (964.98)

648.66 (1154.26)

<.0001

<.0001

<.0001

Intervention

447.36 (881.15)

2254.20 (1745.95)

1441.26 (1488.53)

   

Aerobic walking timec

      

Attention control

3.59 (6.27)

5.22 (9.13)

5.92 (10.03)

<.0001

<.0001

<.0001

Intervention

4.15 (7.75)

19.52 (14.97)

12.72 (13.19)

   

Sedentary (no/low activity)c

      

Attention control

505.00 (170.19)

468.55 (147.12)

463.09 (115.16)

.6478

.0951

.9521

Intervention

509.38 (159.08)

475.44 (154.97)

474.97 (123.05)

   

Light lifestyle activityc

      

Attention control

248.53 (53.76)

255.99 (66.76)

278.35 (76.52)

.3194

<.0001

.9125

Intervention

235.77 (47.18)

241.75 (49.43)

271.08 (79.14)

   

Moderate lifestyle activityc

      

Attention control

77.29 (46.25)

90.64 (49.52)

104.82 (52.84)

.0714

<.0001

.1505

Intervention

77.29 (35.32)

102.21 (45.46)

124.62 (66.90)

   

Moderate walking activityc

      

Attention control

15.33 (12.28)

20.62 (16.87)

23.61 (23.76)

.0021

<.0001

.0239

Intervention

17.67 (14.94)

34.18 (24.62)

38.97 (38.10)

   

Vigorous activityc

      

Attention control

0.16 (0.64)

0.66 (2.38)

0.39 (1.33)

.1627

.0713

.8818

Intervention

0.57 (1.95)

1.01 (3.43)

0.63 (1.71)

   
  1. a p-values for Group effects from F-tests with 1 and 137 degrees of freedom; ps for Time and Group x Time effects from F-tests with 2 and 137 degrees of freedom. bSteps/day; p-values for Group effects from F-tests with 1 and 135 degrees of freedom; ps for Time and Group x Time effects from F-tests with 2 and 135 degrees of freedom. cMinutes/day; p-values for Group effects from F-tests with 1 and 136 degrees of freedom; ps for Time and Group x Time effects from F-tests with 2 and 136 degrees of freedom.