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Table 2 Main results

From: Influence of physical strain at high altitude on the quality of cardiopulmonary resuscitation

 

Baseline

High altitude

Difference (with 95% CI)

p-value

Compression depth (cm, mean, SD)

5.4 (1.6)

4.3 (0.9)

−1.0 (−1.3 to −0.5)

< 0.001

Compression frequency (pm, mean, SD)

120 (37)

123 (11)

3 (−4 to 10)

0.36

Compressions in target depth (%, mean, SD)

72 (31)

17 (34)

−55 (−82 to −29)

< 0.001

Hands-off time (s, mean, SD)

201 (63)

189 (20)

−13 (−27 to 2)

0.09

Duration of release phase (ms, mean, SD)

414 (132)

339 (82)

−75 (−101 to − 48)

< 0.001

Proportion of time performing chest compressions (%, mean, SD)

79 (23)

80 (2)

1 (− 6 to 3)

0.20