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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: J Nutr Educ Behav. 2010 May–Jun;42(3 Suppl):S11–S21. doi: 10.1016/j.jneb.2010.01.010

Table 3.

Fixed Effects for Primary and Secondary Outcome Variables

Outcome variables Intercept Baseline
covariatea
Group Time Group X Time
Primary outcomes
 Body weight (lbs) 196.8b
(187.4, 206.2)
0.96b
(0.89, 1.04)
−6.00
(−21.7, 9.72)
−4.68
(−10.8, 1.45)
2.81
(−8.0, 13.6)
 Blood glucose (mg/dl)1 106.3b
(95.3, 117.2)
0.31b
(0.05, 0.57)
−15.96
(−34.3, 2.3)
−8.11b
(−15.3, −0.90)
10.06
(−2.5, 22.7)
Secondary outcomes
 Fat intake (% of total calories from
fat)
32.38 b
(27.9, 36.7)
0.54b
(0.36, 0.72)
−2.47
(−9.6, 4.7)
0.22
(−2.8, 3.2)
2.16
(−3.0, 7.3)
 Fruit and vegetable intake (cups/day) 3.99b
(1.4, 6.4)
0.26b
(0.12, 0.40)
4.90b
(0.85, 8.9)
0.83
(−0.80, 2.4)
−3.30b
(−6.0, −0.55)
 Physical activity (MET) 29.96 b
(8.8, 51.0)
0.54b
(0.35, 0.74)
−2.01
(−36.5, 32.5)
2.51
(−11.2, 16.3)
9.59
(−13.7, 32.9)
 Perceived stress 1.70 b
(1.4, 1.9)
0.42b
(0.14, 0.69)
−0.14
(−0.61, 0.32)
0.53 b
(0.33, 0.71)
0.07
(−0.25, 0.39)
 Positive feelings 3.33 b
(2.8, 3.7)
0.45b
(0.28, 0.61)
−0.05
(−0.78, 0.68)
0.05
(−0.24, 0.35)
0.11
(−0.38, 0.61)
 Negative feelings 3.87 b
(3.4, 4.3)
0.55b
(0.37, 0.73)
−0.21
(−0.98, 0.55)
−0.07
(−0.39, 0.23)
0.07
(−0.44, 0.59)
a

Baseline covariate centered on grand mean.

b

p < 0.05. Values of 95% confidence interval are in the parentheses.

*

Lower scores are more favorable in the shaded rows.

1

Fasting and random blood glucose via finger stick.