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Table 2 The dietary and physical behaviors among students in the study, mean ± SD or N (%)

From: Association between convenience stores near schools and obesity among school-aged children in Beijing, China

Variables

All

Dongcheng District

Miyun District

P valuea

Diet score (mean ± SD)

3.5 ± 0.78

3.6 ± 0.75

3.3 ± 0.80

< 0.001b

Vegetable Intake, portion/day (mean ± SD)

1.5 ± 0.90

1.6 ± 0.91

1.4 ± 0.87

< 0.001b

Fruit Intake, portion /day (mean ± SD)

1.5 ± 0.96

1.6 ± 0.96

1.3 ± 0.93

< 0.001b

Meat Intake, portion /day (mean ± SD)

0.7 ± 0.69

0.8 ± 0.74

0.5 ± 0.59

< 0.001b

SSB Intake, portion /week (mean ± SD)

1.9 ± 3.16

1.5 ± 2.67

2.4 ± 3.66

< 0.001b

Milk Intake, portion /day (mean ± SD)

1.1 ± 0.89

1.2 ± 0.91

1.0 ± 0.86

< 0.001b

Meeting the Recommendation of MVPA (%)

0.208c

 Yes

339 (15.5)

186 (14.7)

153 (16.7)

 No

1845 (84.5)

1080 (85.3)

765 (83.3)

Meeting the Recommendation of Screen time (%)

< 0.001c

 Yes

1761 (81.1)

1095 (86.7)

666 (73.3)

 No

411 (18.9)

168 (13.3)

243 (26.7)

  1. a P value for differences in general characteristics between Dongcheng district and Miyun district
  2. b Difference was tested using t test
  3. c Difference was tested using chi-square test
  4. SSB, sugar sweetened beverages
  5. MVPA, moderate or vigorous physical activities
  6. The recommendation of MVPA was equal to or more than one hour every day
  7. The recommendation of screen time was less than 2 h every day