Research ArticleOriginal Article
Open Access

Physiological association of the breakpoint with the duration of hyperventilation

Ayesha Sadiqa, Ambreen Khalid and Abdullah Islam
Saudi Medical Journal October 2023, 44 (10) 995-999; DOI: https://doi.org/10.15537/smj.2023.44.10.20230358

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Tables

  • Table 1

    - Baseline characteristics of the study population (N=101).

    DemographicsMean±SEM*P-value
    Men : Women44 : 57 
    Age* of all subjects19.34±0.075 
    Age of men: Age of women19.33±0.13 : 19.34±0.091.0
    BMI* of all subjects22.58±0.46 
    BMI of men: BMI of women23.52±0.74 : 21.91±0.570.08
    BHT* of all subjects25.49±1.14 
    BHT of men : BHT of women30.82±1.88 : 21.38±1.140.0001*
    DOH* of all subjects25.75±1.15 
    DOH of men : DOH of women30.68±1.94 : 21.95±1.170.0001*

    • ↵* Age (in years),

    • ↵* BMI: body mass index (kg/m2),

    • ↵* BHT: breath-holding time (sec.),

    • ↵* DOH: duration of hyperventilation (sec.),

    • ↵* SEM: standard error of the mean,

    • ↵* p<0.05 is statistically significant

  • Table 2

    - Association of BMI with BHT and of BHT with DOH in the study population.

    Pearson correlationR2 LinearPearson rP-value
    (Along the x-axis)(Along the y-axis)
    BMI* of all subjectsBHT* of all subjects0.008−0.080.34
    BMI* of menBHT* of men0.06−0.240.11
    BMI* of womenBHT* of women0.008−0.0920.497
    BHT of all subjectsDOH* of all subjects0.410.640.000*
    BHT of menDOH* of men0.370.6040.000*
    BHT of womenDOH* of women0.2680.5180.000*
    Regression analysisβ coefficientOdds ratio*P-value
    Independent variableDependent variable
    BMI* of all subjectsBHT* of all subjects−0.087−0.76 to 0.290.38
    BMI* of menBHT* of men−0.241−1.53 to 0.170.11
    BMI* of womenBHT* of women−0.092−0.76 to 0.370.497
    BHT of all subjectsDOH* of all subjects0.6370.48 to 0.800.000*
    BHT of menDOH* of men0.6040.37 to 0.880.000*
    BHT of womenDOH* of women0.5180.29 to 0.770.000*

    • ↵* BMI: body mass index (kg/m2),

    • ↵* BHT: breath holding time (sec.),

    • ↵* DOH: duration of hyperventilation (sec.),

    • ↵* p<0.05 is significant,

    • ↵odds ratio*  = 95% confidence interval

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