Table 3 Weight (kg)-for-age z-score curves at 0, ±1, ±2, and ± 3 SD for Chinese boys and girls from birth to 24 months

0.3325

3.39

0.1213

2.30

2.63

2.99

3.39

3.82

4.28

4.78

0.0359

3.30

0.1196

2.30

2.59

2.92

3.30

3.71

4.18

4.71

0.3465

4.70

0.1196

3.21

3.66

4.16

4.70

5.29

5.92

6.60

−0.0184

4.51

0.1182

3.17

3.56

4.01

4.51

5.08

5.71

6.44

0.3315

5.87

0.1178

4.03

4.59

5.20

5.87

6.59

7.36

8.20

−0.0550

5.48

0.1168

3.88

4.35

4.88

5.48

6.17

6.94

7.81

0.2872

6.87

0.1159

4.76

5.41

6.11

6.87

7.70

8.60

9.57

−0.0886

6.46

0.1155

4.60

5.14

5.76

6.46

7.26

8.16

9.19

0.2373

7.61

0.1143

5.32

6.01

6.78

7.61

8.52

9.51

10.58

−0.1129

7.13

0.1145

5.09

5.69

6.37

7.13

8.01

9.00

10.13

0.1874

8.16

0.1130

5.75

6.48

7.28

8.16

9.13

10.18

11.33

−0.1331

7.63

0.1137

5.47

6.10

6.82

7.63

8.56

9.62

10.82

0.1414

8.61

0.1118

6.11

6.86

7.69

8.61

9.62

10.73

11.95

−0.1515

8.06

0.1130

5.79

6.45

7.20

8.06

9.03

10.14

11.41

0.1005

9.00

0.1107

6.42

7.19

8.05

9.00

10.05

11.20

12.48

−0.1690

8.45

0.1122

6.09

6.78

7.56

8.45

9.46

10.62

11.95

0.0648

9.34

0.1098

6.69

7.48

8.36

9.34

10.42

11.61

12.93

−0.1858

8.81

0.1115

6.37

7.08

7.89

8.81

9.86

11.07

12.45

0.0344

9.62

0.1089

6.92

7.73

8.62

9.62

10.72

11.95

13.31

−0.2003

9.11

0.1109

6.60

7.33

8.16

9.11

10.19

11.43

12.85

0.0082

9.86

0.1082

7.12

7.94

8.85

9.86

10.99

12.24

13.64

−0.2125

9.34

0.1103

6.78

7.53

8.38

9.34

10.44

11.71

13.17

−0.0159

10.08

0.1076

7.30

8.13

9.05

10.08

11.22

12.50

13.93

−0.2238

9.54

0.1098

6.94

7.70

8.56

9.54

10.67

11.95

13.44

−0.0398

10.29

0.1069

7.48

8.32

9.25

10.29

11.45

12.75

14.21

−0.2356

9.74

0.1093

7.10

7.87

8.74

9.74

10.88

12.19

13.70

−0.0650

10.51

0.1062

7.67

8.51

9.45

10.51

11.69

13.01

14.50

−0.2487

9.94

0.1088

7.26

8.04

8.93

9.94

11.10

12.43

13.97

−0.0919

10.73

0.1055

7.86

8.71

9.66

10.73

11.93

13.28

14.79

−0.2635

10.15

0.1082

7.44

8.23

9.13

10.15

11.33

12.69

14.26

−0.1199

10.95

0.1048

8.05

8.91

9.87

10.95

12.17

13.54

15.09

−0.2798

10.37

0.1076

7.61

8.41

9.33

10.37

11.57

12.95

14.55

−0.1485

11.18

0.1040

8.24

9.11

10.08

11.18

12.41

13.81

15.39

−0.2974

10.59

0.1070

7.80

8.61

9.53

10.59

11.81

13.21

14.84

−0.1776

11.40

0.1033

8.43

9.30

10.29

11.40

12.65

14.07

15.68

−0.3161

10.81

0.1063

7.98

8.80

9.74

10.81

12.05

13.47

15.13

−0.2070

11.62

0.1026

8.62

9.50

10.49

11.62

12.88

14.32

15.96

−0.3357

11.03

0.1057

8.16

8.99

9.94

11.03

12.28

13.73

15.42

−0.2365

11.83

0.1019

8.80

9.69

10.70

11.83

13.11

14.58

16.25

−0.3558

11.24

0.1051

8.34

9.18

10.14

11.24

12.51

13.98

15.70

−0.2659

12.04

0.1012

8.99

9.88

10.89

12.04

13.34

14.82

16.52

−0.3766

11.45

0.1045

8.51

9.36

10.33

11.45

12.73

14.23

15.98

−0.2953

12.24

0.1006

9.17

10.07

11.09

12.24

13.56

15.06

16.79

−0.3981

11.65

0.1039

8.69

9.54

10.53

11.65

12.96

14.48

16.25

−0.3246

12.45

0.0999

9.35

10.26

11.28

12.45

13.78

15.30

17.06

−0.4204

11.86

0.1033

8.86

9.73

10.72

11.86

13.18

14.72

16.53

−0.3539

12.65

0.0993

9.53

10.44

11.47

12.65

13.99

15.54

17.33

−0.4432

12.07

0.1027

9.04

9.91

10.92

12.07

13.41

14.97

16.81

−0.3832

12.85

0.0986

9.71

10.62

11.66

12.85

14.21

15.77

17.59

−0.4665

12.28

0.1021

9.22

10.10

11.11

12.28

13.63

15.21

17.08