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Table 3 Odds ratio of number (N) of cardiovascular disease (CVD) risk factors and abnormal electrocardiogram (ECG) according to cardiorespiratory fitness level

From: Associations of cardiorespiratory fitness with cardiovascular disease risk factors in middle-aged Chinese women: a cross-sectional study

Variablea

Fitness levelb

 

Low

Moderate

Highe

 

OR (95% C.I.)

P-value

OR (95% C.I.)

P-value

(Reference)

N of CVD risk factors c

       

  ≥3 Risk factors

2.09

(1.48-2.94)

<0.01

1.84

(1.29-2.62)

<0.01

1.00

  2 Risk factors

1.60

(1.13-2.26)

<0.01

1.10

(0.76-1.60)

0.61

1.00

  ≤1 Risk factors

0.71

(0.51-0.99)

<0.05

0.79

(0.58-1.10)

0.16

1.00

Abnormality in ECG d

       

  ST-Depression

2.14

(1.52-3.00)

<0.01

1.63

(1.14-2.32)

<0.01

1.00

  Long QTC

2.06

(1.44-2.96)

<0.01

1.52

(1.04-2.23)

<0.05

1.00

  1. aReference value for abnormalities according to ACSM instructions [13].
  2. bAccording to VO2max, the least fit 20% were classified as low fit, the next 40% as moderately fit, and the top 40% as high fit.
  3. cOdds ratio (95% confidence interval) of number of CVD risk factors related to overweight, hypertension, and dyslipidemia adjusted for age, family history, income, education, smoking, diet, alcohol consumption and total weekly physical activity.
  4. dOdds ratios of ST depression and long QTC (corrected QT) interval during the cycle exercise testing adjusted for age, family history, income, education, smoking, diet, alcohol consumption, total physical activity, and other CVD risk factors.
  5. eHigh CRF was the referent for both models.