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Table 1 Detail descriptions of the predictor variables used in final health space models. KNHANES data was used to construct health spaces and Ewha-Boramae data and KARE data were used for external validation of health spaces

From: Statistical modeling of health space based on metabolic stress and oxidative stress scores

Data

(sample size)

Model Development

External Validation

KNHANES

(n = 32,140)

Ewha-Boramae

(n = 862)

KARE

(n = 3,199)

Age (year)

47.95 (\(\pm 15.57\))

47.72 (\(\pm 11.23\))

51.01 (\(\pm 8.77\))

Sex

 Male

15,469 (48.13%)

554 (64.26%)

1,782 (55.70%)

 Female

16,671 (51.87%)

308 (35.74%)

1,417 (44.29%)

Smoking

 Non-smokers/Past smokers

24,567 (76.44%)

690 (80.05%)

2,222 (69.46%)

 Current smokers

7,573 (23.56%)

172 (19.95%)

977 (30.54%)

WBC (× 103 μL)

6.19 (\(\pm 1.72\))

5.87 (\(\pm 1.60\))

6.63 (\(\pm 1.79\))

GPT (μkat/L)

0.36 (\(\pm 0.31\))

0.49 (\(\pm 0.44\))

0.47 (\(\pm 0.53\))

BMI (kg/m2)

23.68 (\(\pm 3.37\))

24.13 (\(\pm 3.29\))

24.54 (\(\pm 3.08\))

TG (mmol/L)

1.54 (\(\pm 1.30\))

1.35 (\(\pm 0.78\))

1.87 (\(\pm 1.18\))

HDLC (mmol/L)

1.28 (\(\pm 0.31\))

1.36 (\(\pm 0.33\))

1.14 (\(\pm 0.25\))

Glucose (mmol/L)

5.47 (\(\pm 1.29\))

5.30 (\(\pm 1.03\))

4.89 (\(\pm 1.26\))

  1. Continuous variables were expressed as the mean \(\pm\) standard deviation, categorical variables were expressed as frequency (percentage)