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Table 3 Adiposity, insulin resistance, and stress outcomes: baseline values and change with intervention

From: Imagine HEALTH: results from a randomized pilot lifestyle intervention for obese Latino adolescents using Interactive Guided ImagerySM

Outcome Variable

Lifestyle + DS

Lifestyle + GI

 

Baseline

Change

Baseline

Change

Adiposity

    

  BMI (kg/m2)

35.1 ± 4.6

0.16 ± 1.37

36.2 ± 5.9

0.77 ± 1.18

  BMI-Z score

2.23 ± 0.22

-0.01 ± 0.13

2.30 ± 0.4

0.04 ± 0.09

  % Body fat

37.8 ± 8.4

0.39 ± 5.3

41.5 ± 7.4

0.78 ± 4.0

  Waist circumference (cm)

111.6 ± 10.3 (13)

-0.77 ± 3.2 (13)

118.1 ± 13.6 (14)

0.64 ± 1.6 (14)

Insulin sensitivity/Resistance

    

  Insulin sensitivity (×10-4 /(μU/ml)/min)

1.74 ± 0.93

0.43 ± 0.69

1.28 ± 0.65 (14)

-0.05 ± 0.65 (14)

  HOMA-IRI

4.02 ± 3.36

-0.86 ± 1.7

5.20 ± 2.30

-0.78 ± 2.1

Stress/HPA axis

    

  Perceived stress

29.6 ± 8.9

0.07 ± 7.68

29.8 ± 6.6

-2.00 ± 7.13

  Serum cortisol (μg/dl)

13.3 ± 4.5

-0.89 ± 5.84

11.0 ± 4.2

0.64 ± 3.99

  Urine free cortisol (μg/m2/8 hrs)

3.20 ± 1.44 (13)

1.71 ± 3.15 (13)

3.98 ± 2.05

-0.57 ± 3.70

  Nocturnal cortisol rise (μg/dl)

0.66 ± 0.56 (12)

0.67 ± 1.26 (9)

0.88 ± 0.42 (9)

-0.24 ± 0.42 (9)

  Cortisol awakening response (μg/dl)

1.03 ± 0.47 (11)

-0.68 ± 1.17 (9)

0.69 ± 0.56 (13)

0.03 ± 0.70 (13)

  1. Data show Mean ± SD for baseline and unadjusted change from pre- to post-intervention.
  2. Between group comparisons by unpaired T-tests: *p < .05 p < 0.1.
  3. (n) indicates number of comparisons made when complete group data (n = 14 for DS group and n = 15 for GI group) not available.