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Table 1 Baseline characteristics of participating parents and children (n = 552)

From: Effectiveness of a Smartphone App (MINISTOP 2.0) integrated in primary child health care to promote healthy diet and physical activity behaviors and prevent obesity in preschool-aged children: randomized controlled trial

  

All

 

Intervention

 

Control

N

% or M (SD).1

N

% or M (SD)

N

% or M (SD)

Parental characteristics.2

Age (years)

539

34.1 (5.0)

270

34.0 (4.9)

269

34.1 (5.1)

Female

428

78.8

218

80.4

210

77.2

Male

115

21.2

53

19.6

62

22.8

Education (%)

  Primary school (≤ 9 years)

27

5.0

15

5.6

12

4.4

  Highschool (12 years)

177

32.6

81

30.0

96

35.3

  University

338

62.4

174

64.4

164

60.3

Country of birth (%)

  Sweden

390

71.3

200

73.0

190

69.6

  Europe

50

9.1

27

9.8

23

8.4

  Outside of Europe

107

19.6

47

17.2

60

22.0

BMI (kg/m2)

532

25.5 (5.0)

265

25.5 (5.1)

267

25.5 (4.8)

PSE total score3

543

22.5 (4.6)

271

22.7 (4.8)

272

22.3 (4.3)

  PSE diet

543

7.7 (1.7)

271

7.7 (1.8)

272

7.6 (1.6)

  PSE physical activity

543

7.8 (1.7)

271

7.9 (1.7)

272

7.8 (1.7)

  PSE screen time

543

7.0 (2.1)

271

7.2 (2.2)

272

6.9 (2.0)

Children’s characteristics

Boys

279

50.5

131

47.3

148

53.8

Girls

273

49.5

146

52.7

127

46.2

2.5 years at baseline (%)

403

73.0

203

73.3

200

72.7

3.0 years at baseline (%)

149

27.0

74

26.7

75

27.3

Country of birth (%)4

  Sweden

535

97.4

270

97.8

265

97.1

  Europe

6

1.1

3

1.1

3

1.1

  Outside of Europe

8

1.5

3

1.1

5

1.8

BMI (kg/m2)

549

16.8 (1.5)

277

16.9 (1.5)

272

16.8 (1.5)

  2.5 years

401

16.8 (1.4)

203

16.9 (1.4)

198

16.7 (1.4)

  3.0 years

148

16.7 (1.9)

74

16.7 (1.9)

74

16.8 (1.9)

BMI z-score (SD)5

549

0.47 (1.0)

277

0.51 (1.0)

272

0.43 (1.0)

BMI classification (%)6

  Thinness (I, II)

32

5.8

14

5.1

18

6.6

  Normal weight

404

73.6

200

72.2

204

75.0

  Overweight

88

16.0

50

18.0

38

14.0

  Obesity (I, II)

25

4.6

13

4.7

12

4.4

Vegetables and fruit/berries (g/day)

541

214.7 (74.8)

270

220.3 (74.5)

271

209.2 (74.9)

  Vegetables (g/day)

541

43.7 (19.4)

270

46.2 (18.7)

271

41.1 (19.7)

  Fruit/berries (g/day)

541

171.1 (64.8)

270

174.1 (65.1)

271

168.0 (64.5)

Sweet and savory treats (g/day)

541

24.4 (26.0)

270

21.9 (24.1)

271

26.8 (27.5)

Sweet drinks (g/day)

543

87.7 (124.1)

271

82.5 (127.6)

272

92.8 (120.5)

MVPA (min/day)

539

117.7 (57.0)

269

114.9 (58.2)

270

120.4 (55.9)

  MVPA, weekday (min/day)

541

118.7 (61.2)

270

116.2 (62.6)

271

121.2 (59.8)

  MVPA, weekend (min/day)

540

114.9 (57.2)

270

112.0 (57.3)

270

117.8 (57.1)

Screen time (min/day)

541

70.0 (39.7)

270

67.2 (39.1)

271

72.8 (40.1)

  Screen time, weekday (min/day)

542

62.3 (39.2)

270

59.8 (38.4)

272

64.9 (39.8)

  Screen time, weekend (min/day)

541

89.6 (49.1)

270

85.9 (49.7)

271

93.2 (48.3)

  1. Abbreviations CI confidence interval, MVPA moderate-to-vigorous physical activity, PSE parental self-efficcy M Mean, SD Standard deviation, PSE parental self-efficacy, BMI Body Mass Index, MVPA moderate-to-vigorous physical activity
  2. 1Characteristics presented as percentages (%) or as mean and standard deviation (M ± SD)
  3. 2Characteristics of the participating parent, i.e., the parent that filled out the baseline questionnaire and activated and used the MINISTOP 2.0 app on their mobile phone, if randomized to the intervention group
  4. 3Mean PSE score for promoting healthy lifestyle behaviors (diet, physical activity, screen time). Score range for each question: 1–10 [34]
  5. 4When considering country of birth for the whole family (i.e., also parents), 61.2% of children had parents that were both born in Sweden, 23.6% had two foreign-born parents, and 15.2% had one parent that was born in Sweden and one foreign-born parent
  6. 5BMI standard deviation scores (BMI z-scores) calculated using the extended international age and sex specific body mass index (IOTF) cut-offs by Cole and Lobstein 2012 [43]
  7. 6BMI classification according to Cole and Lobsteins revised cut-offs 2012 [43]: Thinness II, ISO-BMI < 17.0 kg/m2; Thinness I, ISO-BMI = 17.0–18.5 kg/m2; Normal weight, ISO-BMI = 18.5–24.9 kg/m2; Overweight, ISO-BMI = 25.0–29.9 kg/m2; Obesity I, ISO-BMI = 30.0–34.9 kg/m2; Obesity II, ISO-BMI = 35.0–39.9 kg/m2