How to Calculate Weight-for-Height Z-Score (WHZ) in ...

1 NACS USER S GUIDE MODULE 2 Nutrition Assessment and Classification How to Calculate Weight-for-Height Z-Score (WHZ) in Children 0 59 Months of Age A weight -for-length/ height Z-Score (WHZ) compares a child s weight to the weight of a child of the same length/ height and sex to classify nutritional status. To use the charts to classify children s nutritional status: 1. Find the correct table for the child s age (0 23 months or 24 59 months) and sex (boy or girl). Measure children 0 23 months of age or less than 87 cm long lying down (length).

2 Measure children 24 59 months of age or taller than 87 cm standing up ( height ). 2. Find the figure closest to the child s length/ height in the left column. 3. Move your finger to the right to find the range that contains the child s weight . 4. The label at the top of the column with the range containing the child s weight tells you the child s nutritional status. BOYS 0 23 months, weight -for-length Length SAM MAM Normal Overweight Obesity < 3 3 to < 2 2 to +2 > +2 to +3 > +3 (cm) weight (kg) 45 0 > 46 0 > 47 0 > 48 0 > 49 0 > 50 0 > 51 0 > 52 0 > 53 0 > 54 0 > 55 0 > 56 0 > 57 0 > 58 0 > 59 0 > 60 0 > 61 0 > 62 0 > 63 0 > 64 0 > 65 0 > 66 0 > 67 0

3 > 68 0 > 69 0 > 70 0 > 71 0 > 72 0 > 73 0 > 74 0 > 75 0 > 76 0 > 77 0 > 78 0 > 79 0 > 80 0 > 81 0 > 82 0 > 83 0 > 84 0 > 85 0 > 86 0 > GIRLS 0 23 months, weight -for-length Length SAM MAM Normal Overweight Obesity < 3 3 to < 2 2 to +2 > +2 to +3 > +3 (cm) weight (kg)

4 45 0 > 46 0 > 47 0 > 48 0 > 49 0 > 50 0 > 51 0 > 52 0 > 53 0 > 54 0 > 55 0 > 56 0 > 57 0 > 58 0 > 59 0 > 60 0 > 61 0 > 62 0 > 63 0 > 64 0 > 65 0 > 66 0 > 67 0 > 68 0 > 69 0 > 70 0 > 71 0 > 72 0 > 73 0 > 74 0 > 75 0 > 76 0 > 77 0 > 78 0 > 79 0 > 80 0 > 81 0 > 82 0 > 83 0 > 84 0 > 85 0 > 86 0 > BOYS 0 23 months, weight -for-length Length (cm)

5 SAM MAM < 3 3 to < 2 Normal 2 to +2 Overweight > +2 to +3 Obesity > +3 weight (kg) 87 0 > 88 0 > 89 0 > 90 0 > 91 0 > 92 0 > 93 0 > 94 0 > 95 0 > 96 0 > 97 0 > 98 0 > 99 0 > 100 0 > GIRLS 0 23 months, weight -for-length Length (cm) SAM MAM < 3 3 to < 2 Normal 2 to +2 Overweight > +2 to +3 Obesity > +3 weight (kg) 87 0 > 88 0 > 89 0 > 90 0 > 91 0 > 92 0 > 93 0 > 94 0 > 95 0 > 96 0 > 97 0 > 98 0 > 99 0 > 100 0 > BOYS 24 59 months, Weight-for-Height height (cm) SAM MAM < 3 3 to < 2 weight (kg)

6 Normal 2 to +2 Overweight > +2 to +3 Obesity > +3 65 0 > 66 0 > 67 0 > 68 0 > 69 0 > 70 0 > 71 0 > 72 0 > 73 0 > 74 0 > 75 0 > 76 0 > 77 0 > 78 0 > 79 0 > 80 0 > 81 0 > 82 0 > 83 0 > 84 0 > 85 0 > 86 0 > 87 0 > 88 0 > GIRLS 24 59 months, Weight-for-Height height SAM MAM Normal Overweight Obesity < 3 3 to < 2 2 to +2 > +2 to +3 > +3 (cm) weight (kg)

7 65 0 > 66 0 > 67 0 > 68 0 > 69 0 > 70 0 > 71 0 > 72 0 > 73 0 > 74 0 > 75 0 > 76 0 > 77 0 > 78 0 > 79 0 > 80 0 > 81 0 > 82 0 > 83 0 > 84 0 > 85 0 > 86 0 > 87 0 > 88 0 > BOYS 24 59 months, Weight-for-Height height (cm) SAM MAM < 3 3 to < 2 Normal 2 to +2 Overweight > +2 to +3 Obesity > +3 weight (kg)

8 89 0 > 90 0 > 91 0 > 92 0 > 93 0 > 94 0 > 95 0 > 96 0 > 97 0 > 98 0 > 99 0 > 100 0 > 101 0 > 102 0 > 103 0 > 104 0 > 105 0 > 106 0 > 107 0 > 108 0 > 109 0 > 110 0 > 111 0 > 112 0 > 113 0 > 114 0 > 115 0 > 116 0 > 117 0 > 118 0 > 119 0 > 120 0 > GIRLS 24 59 months, Weight-for-Height height (cm) SAM MAM < 3 3 to < 2 Normal 2 to +2 Overweight > +2 to +3 Obesity > +3 weight (kg)

9 89 0 > 90 0 > 91 0 > 92 0 > 93 0 > 94 0 > 95 0 > 96 0 > 97 0 > 98 0 > 99 0 > 100 0 > 101 0 > 102 0 > 103 0 > 104 0 > 105 0 > 106 0 > 107 0 > 108 0 > 109 0 > 110 0 > 111 0 > 112 0 > 113 0 > 114 0 > 115 0 > 116 0 > 117 0 > 118 0 > 119 0 > 120 0 >