Clinical predictors of hypoxemia in pneumonia
Abstract
Background Pneumonia is one of the main causes of death ininfants in developing countries. The device of oxygen saturation
measurement for detecting hypoxemia is limited in district hospi-
tals.
Objective The aim of our study was to find the best clinical pre-
dictor for hypoxemia that could be used in Indonesia.
Methods Between June 2001 until May 2002, the diagnostic test
was performed in 125 infants aged 2–12 month-old who suffered
from pneumonia. The oxygen saturation measured by pulse oxim-
etry was used as the gold standard.
Results The samples were divided into two groups, 52 infants with
hypoxemia and 73 normal. The base characteristics of both groups
were not statistically different. The prevalence of hypoxemia was
41.6%. The best single clinical predictor of hypoxemia was cyano-
sis (the sensitivity 92%, specificity 86%, likelihood ratio 6.74, post-
test probability 83%), as well as the combination of two clinical
predictors i.e., cyanosis and nasal flaring. The best combination of
three clinical predictors was cyanosis, nasal flaring, and refusal to
drink (the sensitivity 92%, specificity 86%, likelihood ratio 6.74,
post-test probability 81%).
Conclusion The combination of cyanosis and nasal flaring is
good enough as a predictor to detect hypoxemia in area with no
facility of oxygen saturation measurement
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Published 2016-09-26