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Table 2 Trends in BMI z-scores among Chinese children and adolescents aged 7-18y: 2011–2015

From: Prevalence and stabilizing trends in overweight and obesity among children and adolescents in China, 2011-2015

  

2011

 

2015

P

N

Mean ± SD

N

Mean ± SD

All

1458

−0.0749 ± 1.3632

1084

0.0528 ± 1.4028

0.0211

Age

 7–11

762

0.0421 ± 1.5078

698

0.0737 ± 1.4251

0.6818

 12–18

696

−0.2031 ± 1.1726

386

0.0150 ± 1.3626

0.0083

Gender

 Boys

743

0.0426 ± 1.4529

554

0.2522 ± 1.4710

0.0107

 Girls

715

−0.1970 ± 1.2527

530

−0.1556 ± 1.2968

0.5700

Area

 Urban

440

0.1275 ± 1.3571

282

0.3732 ± 1.3381

0.0173

 Rural

1018

−0.1625 ± 1.3572

802

−0.0599 ± 1.4085

0.1155

Region

 North

461

0.3738 ± 1.3626

302

0.4911 ± 1.4773

0.2612

 South

997

−0.2824 ± 1.3133

782

−0.1165 ± 1.3360

0.0087

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