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Table 4 Comparison of cerebral blood flow velocities at high altitude

From: Smoking is associated with the incidence of AMS: a large-sample cohort study

Index Non-smoker (n = 130) Smoker (n = 225)
Systolic velocity 105.98 ± 17.06 101.12 ± 14.27a
Diastolic velocity 49.78 ± 10.19 47.04 ± 8.73a
Mean velocity 69.64 ± 12.96 66.43 ± 11.04a
  1. aP < 0.05 compared with non-smokers. Due to technical problems, only a subset of subjects (n = 355) underwent cerebral blood flow velocity tests.