In a systematic review these authors suggest that at 2500 metres the 2.5th centile for normal oxygen saturation is 90%, falling to 85% at 3400 metres.  Here.

In a cohort of 89 Malawian children with malnutrition 84 (96%) had echocardiographically measurable pericardial effusion on admission, of which only 16 had TB, which was previously thought to be an underlying cause for the effusion. 

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Simon Lenton writes here about a charity which provides bikes which help children get to school in The Gambia. Further details here: http://www.jole1000.org/

Of 90 refugee children with falciparum malaria in Australia, 56 who met specific criteria were successfully treated on an outpatient basis.  Here.

In populations of nearly 4000 children from Pakistan, the dual burdens of significant numbers of children who are undernourished and stunted, and others who are obese are noted.  Here.

In a series of 452 infants in an south Indian slum, 391 were followed during their first year of life, during which infants suffered an average of 12 illnesses, with a high burden of respiratory and gastrointestinal illness, and spent on average 20% their lives ill.  Here.

In 251 Bangladeshi children with severe and very severe pneumonia 93% were successfully treated using a day care facility with parents providing night time ongoing care. Here.