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Table 2 Possible baseline predictors for weight loss after 1 year (n = 160)

From: Predictors of weight loss in young adults who are over-weight or obese and have psychosocial problems: a post hoc analysis

Variable

Category

Number (160)

Mean weight change (kg)

95 % ci of the change in mean

ANOVA

OR for weight loss or not and 95 % ci

F-value

P-value

Gender

Male

48

−1.50

−3.2 to 0.2

  

Female

112

−2.21

−3.5 to −1.0

0.41

0.52

2.01

1.01 to 4.0

Age

21 to 34 years old

64

1.72

3.4 to −0.03

  

35 to 45 years old

96

−2.19

−3.5 to −0.9

0.20

0.65

1.43

0.8 to 2.7

Education

School 7 to 11 years

104

−2.51

−3.8 to −1.2

  

School 12 years or more

56

−1.05

−2.6 to 0.5

1.87

0.17

0.57

0.3 to 1.1

Social group

High (1 to 4)

97

−1.75

−2.8 to −0.7

  

Low (5)

63

−2.38

−4.4 to −0.4

0.36

0.55

0.82

0.4 to 1.6

Occupation

No occupation

38

−1.97

−4.1 to 0.1

  

Have occupation

122

−2.01

−3.2 to −0.8

0.01

0.98

0.92

0.4 to 1.9

Single/not single

Single

39

−0.54

−2.6 to 1.6

  

Not single

121

−2.47

−3.6 to −1.3

2.68

0.10

1.50

0.7 to 3.1

Self-rated Economy

Good, very good

48

−2.81

−5.0 to −0.6

  

Fair, bad, very bad

111

−1.45

−2.5 to −0.4

1.62

0.21

1.22

0.6 to 2.4

Self-rated health

Good, very good

62

−1.26

−2.6 to 0.1

  

Fair, bad, very bad

98

−2.47

−3.9 to −1.1

1.35

0.25

1.96

1.03 to 3.7

Problem group

7-9 problems (medium)

85

−1.45

−2.7 to −0.2

  

10 or more problem

75

−2.63

−4.2 to −1.0

1.34

0.25

1.98

1.05 to 3.7

Mental QoL (SF12)

Lower half

74

−2.30

−3.8 to −0.8

  

Upper half

86

−1.74

−3.1 to −0.4

0.29

0.59

0.65

0.3 to 1.2

Physical QoL (SF12)

Lower half

82

−2.26

−3.8 to −0.7

  

Upper half

78

−1.73

−3.1 to −0.4

0.27

0.61

0.82

0.4 to 1.5

Overweight group

BMI 25 to 27.49

60

−0.47

−1.9 to 1.0

  

BMI 27.5 to 29.99

31

−2.03

−3.8 to −0.3

  

BMI 30+

69

−3.32

−5.1 to −1.5

3.24

0.042

1.85a

0.98 to 3.5

Considered weight loss at baseline (n = 159)

No

20

−1.75

−3.9 to 0.4

  

Yes, within 1 year

61

−2.05

−3.6 to −0.5

Yes, within 6 months

41

−0.12

−2.4 to 2.1

Yes, within 30 days

37

−4.27

−6.5 to −2.1

2.79

0.042

3.43b

1.5 to 7.9

Randomization group and weight loss goal

Control, no goal setting

76

−1.57

−3.0 to −0.12

  

Preventive consultation without weight loss as a goal

62

−1.56

−3.2 to 0.05

Preventive consultation with weight loss as prioritized goal for the next year

22

−4.73

−7.7 to −1.8

2.3

0.10

4.63c

1.5 to 14.4

  1. Mean size of weight loss and OR for weight loss or no weight loss in participant with BMI over 25
  2. ANOVA analysis of variance; OR Odds Ratio; Kg Kilogram; CI Confidence interval
  3. aThe two weight groups below BMI 30 were collapsed to one group to calculate OR
  4. bThe three groups with no or longer time horizon for weight loss than 30 days collapsed to one group
  5. cA new variable combining randomization and goal setting