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. Author manuscript; available in PMC: 2011 Jun 4.
Published in final edited form as: Crit Care Med. 2009 Jan;37(1):72–80. doi: 10.1097/CCM.0b013e3181930174

Table 2.

Characteristics and physiologic variation of the study population

Units Mean ± sd N
Study population
    Age yr 69 ± 12 120
    Stay duration day 2.3 ± 2.2 120
    COTD measurements per patient 10 ± 8 120
    COTD range per patient L/min 2.3 ± 1.2 120
    Mean arterial pressure range per patient mm Hg 24 ± 10 120
    Peripheral vascular resistance range per patient mm Hg-s/ml 0.5 ± 0.3 120
Pooled data
    COTD L/min 5 ± 2 1164
    Mean arterial pressure mm Hg 75 ± 10 1164
    Heart rate bpm 88 ± 17 1164
    Peripheral vascular resistance mm Hg·s/ml 1 ± 0.4 1164

COTD, cardiac output thermadilution.