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Table 3 Change in television viewing and BMI by change in explanatory variables from baseline to follow-up

From: Longitudinal associations between TV viewing and BMI not explained by the ‘mindless eating’ or ‘physical activity displacement’ hypotheses among adults

Change in potential explanatory variables

Participants

Pathway 1:

Change in TV viewing from CDAH-1 to CDAH-2

Pathway 2:

Change in BMI from CDAH-1 to CDAH-2

 

n

hours/day

Kg/m2

Change in total FBC during TV viewing

 No change

589

0.02 (1.43)

0.54 (2.39)

 Increased

188

0.39 (1.54)

0.92 (2.28)

 Decreased

291

−0.34 (1.42)

0.65 (2.50)

P value2

 

< 0.001

0.16

Change in TV-related meal consumption

 No change

506

0.03 (1.47)

0.64 (2.31)

 Increased

210

0.24 (1.52)

0.81 (2.63)

 Decreased

352

−0.23 (1.39)

0.53 (2.39)

P value2

 

< 0.001

0.42

Change in TV-related snack consumption

 No change

451

−0.03 (1.52)

0.53 (2.41)

 Increased

290

0.31 (1.42)

0.90 (2.15)

 Decreased

327

−0.27 (1.39)

0.56 (2.59)

P value2

 

< 0.001

0.09

Change in TV-related soft drink consumption

 No change

614

0.00 (1.30)

0.59 (2.32)

 Increased

161

0.39 (1.61)

0.90 (2.54)

 Decreased

293

−0.26 (1.65)

0.60 (2.50)

P value2

 

< 0.001

0.32

Change in TV-related alcohol consumption

 No change

611

0.00 (1.34)

0.71 (2.31)

 Increased

241

0.01 (1.60)

0.70 (2.34)

 Decreased

216

−0.07 (1.65)

0.36 (2.69)

P value2

 

0.79

0.16

Change in LTPA, n (%)

 Stable

418

0.05 (1.53)

0.67 (2.58)

 > 1 h increase

353

−0.07 (1.42)

0.44 (2.25)

 > 1 h decrease

297

−0.04 (1.43)

0.82 (2.30)

P value2

 

0.54

0.13

  1. 1Mean; standard deviations in parentheses (all such values)
  2. 2Determined by one-way ANOVA
  3. CDAH1 Childhood Determinants of Adult Health study (2004–06); CDAH2 Childhood Determinants of Adult Health study (2009–10); LTPA leisure-time physical activity, TV television, FBC food and beverage consumption