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Exploring livelihoods of the urban poor in Kampala, Uganda

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Appendix VI: Malnutrition Glossary<br />

Acute malnutrition<br />

Acute malnutrition is caused by a decrease <strong>in</strong> food consumption and/or illness that results <strong>in</strong> sudden weight<br />

loss or oedema. This can be caused by emergency situations, seasonal variances, or parasitic <strong>in</strong>fections, for<br />

example.<br />

Weight for height (WfH) is a measure that considers a ratio <strong>of</strong> a child’s weight to <strong>the</strong>ir height (2-18 years old)<br />

or length (0-24 months old). A score that is figured to be -2 z-scores below <strong>the</strong> <strong>in</strong>ternationally def<strong>in</strong>ed mean<br />

for children <strong>of</strong> <strong>the</strong> same age can be labelled moderate wast<strong>in</strong>g. A score that is -3 z-scores below <strong>the</strong> mean<br />

represents severe wast<strong>in</strong>g.<br />

Mid-upper Arm Circumference (MUAC) takes <strong>the</strong> numeric measurement <strong>of</strong> circumference on a child’s upper<br />

arm. Thresholds may vary, though for a child between 6 and 59 months <strong>of</strong> age, a MUAC <strong>of</strong> less than 12.5cm<br />

is considered moderately malnourished, and below 11cm severely malnourished.<br />

Nutritional/bilateral pitt<strong>in</strong>g oedema is a sign <strong>of</strong> retention <strong>of</strong> water <strong>in</strong> <strong>the</strong> tissues <strong>of</strong> <strong>the</strong> body. This diagnosis <strong>in</strong><br />

<strong>the</strong> field comes about from apply<strong>in</strong>g thumb pressure for approximately 3 seconds to <strong>the</strong> tops <strong>of</strong> feet. If oedema<br />

is present, <strong>the</strong> impression <strong>of</strong> <strong>the</strong> thumb pr<strong>in</strong>t will rema<strong>in</strong> for at least a few seconds after <strong>the</strong> thumb is removed.<br />

Presence <strong>of</strong> oedema on both feet is a sign <strong>of</strong> severe acute malnutrition, namely kwashiorkor.<br />

Marasmus – A form <strong>of</strong> severe acute malnutrition that is characterized by <strong>the</strong> wast<strong>in</strong>g <strong>of</strong> body tissues. This<br />

typically results from a lack <strong>of</strong> sufficient caloric dietary <strong>in</strong>take. Symptoms can <strong>in</strong>clude over-def<strong>in</strong>ition <strong>of</strong><br />

bones (primarily <strong>the</strong> ribs), sk<strong>in</strong>ny limbs, and loose sk<strong>in</strong>.<br />

Kwashiorkor – A form <strong>of</strong> severe acute malnutrition that is characterized by <strong>the</strong> presence <strong>of</strong> bi-lateral oedema<br />

and a weight for height z-score <strong>of</strong> greater than or equal to -2. Typically results from a severe prote<strong>in</strong><br />

deficiency. Symptoms can <strong>in</strong>clude hair changes, dermatosis, and a large belly.<br />

Marasmic kwashiorkor – A comb<strong>in</strong>ation <strong>of</strong> prote<strong>in</strong> and caloric deficiency. The condition is characterized by<br />

severe tissue wast<strong>in</strong>g, dehydration, loss <strong>of</strong> subcutaneous fat, lethargy, and growth retardation.<br />

Global Acute Malnutrition (GAM) – The cumulative prevalence <strong>of</strong> both moderate and severe malnourishment<br />

with<strong>in</strong> a population.<br />

Chronic Malnutrition<br />

Chronic malnutrition – a form <strong>of</strong> malnutrition that is caused by improper dietary <strong>in</strong>take over a long time<br />

period or by repeated <strong>in</strong>fection/disease.<br />

Height for Age (HfA) compares <strong>the</strong> height <strong>of</strong> a child to <strong>the</strong> median height <strong>of</strong> a reference population for<br />

children <strong>of</strong> <strong>the</strong> same age. This is a measure <strong>of</strong> stunt<strong>in</strong>g.<br />

Stunt<strong>in</strong>g is a condition where an <strong>in</strong>dividual is shorter than a well-nourished person <strong>of</strong> <strong>the</strong> same age. This is<br />

caused primarily by chronic malnutrition. A z-score <strong>of</strong> -2 below <strong>the</strong> mean is referred to as moderately stunted,<br />

and a score <strong>of</strong> -3 is referred to as severely stunted.

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