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Table 1 Swiss clinical staging of hypothermia

From: An evaluation of the Swiss staging model for hypothermia using case reports from the literature


Brown et al., 2012 [1]

Durrer et al., 2003 [4]

Typical core temperature (°C)

Stage 1

Conscious, shivering

Clear consciousness with shivering

35 to 32

Stage 2

Impaired consciousness, not shivering

Impaired consciousness without shivering

<32 to 28

Stage 3

Unconscious, not shivering, vital signs present


<28 to 24

Stage 4

No vital signs

Apparent death


  1. There are minor differences between the original system developed Durrer et al. [4], and the most recent versions [1, 5]. Each clinical stage is associated with an estimate of core body temperature