Erratum

In Dr Zafren's Editorial entitled “Does Ibuprofen Prevent Acute Mountain Sickness?” in Wilderness & Environmental Medicine (2012;23:297-299), the table showing the Lake Louise Score was omitted. Below is the referenced Table.

Table

The Lake Louise Acute Mountain Sickness (AMS) Scoring System. A diagnosis of AMS is based on a recent gain in altitude, at least several hours at the new altitude and the presence of a headache and at least one of the following symptoms: gastrointestinal upset (anorexia, nausea, or vomiting) fatigue or weakness, dizziness or lightheadedness and difficulty sleeping. A score of 3 points or greater on the AMS self-report questionnaire alone, or in combination with the Clinical Assessment score, constitutes AMS

Add together the individual scores for each symptom to get the total score

AMS self-report score
Headache
No headache	0
Mild headache	1
Moderate headache	2
Severe headache, incapacitating	3
Gastrointestinal symptoms
None	0
Poor appetite or nausea	1
Moderate nausea or vomiting	2
Severe nausea and vomiting	3
Fatigue and/or weakness
Not tired or weak	0
Mild fatigue/weakness	1
Moderate fatigue/weakness	2
Severe fatigue/weakness	3
Dizziness/lightheadedness
Not dizzy	0
Mild dizziness	1
Moderate dizziness	2
Severe dizziness, incapacitating	3
Difficulty sleeping
Slept as well as usual	0
Did not sleep as well as usual	1
Woke many times, poor sleep	2
Could not sleep at all	3