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Table 3 Comparison of BP, HR, SpO 2 at 500 m and high altitude

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

Index 500 m High altitude
  Non-smoker (n = 373) Smoker (n = 465) Non-smoker (n = 428) Smoker (n = 503)
SBP 115.76 ± 11.61 115.0 ± 10.60 120.29 ± 11.90 118.3 ± 11.77a
DBP 72.87 ± 9.67 72.29 ± 8.93 80.13 ± 10.17 78.04 ± 9.54a
HR 66.45 ± 10.48 65.40 ± 10.42 85.16 ± 12.34 83.38 ± 11.98a
SpO2 98.07 ± 0.99 98.10 ± 1.05 88.70 ± 3.25 88.87 ± 3.13
  1. aP < 0.05 compared with non-smokers.