Table 5 Clinical characteristics of participants matched by based on propensity scores and grouped by potassium intake.

From: Association between a High-Potassium Diet and Hearing Thresholds in the Korean Adult Population

 

Non-high group

[middle and low tertile groups]

(n = 1755)

High tertile group

(n = 1755)

P-value

Age (years)

57.2 ± 11.8

57.2 ± 10.3

0.951

Sex (men)

636 (63.8%)

636 (36.2%)

1.000

Diabetes mellitus

272 (15.5%)

281 (16.0%)

0.677

Hypertension

661 (37.7%)

682 (38.9%)

0.466

Household income (thousand won/month)

4010 ± 8620

3930 ± 6150

0.751

Smoking

  

0.795

    Non-smoker

1199 (68.3%)

1181 (67.3%)

 

    Ex-smoker

333 (19.0%)

347 (19.8%)

 

    Current smoker

223 (12.7%)

227 (12.9%)

 

Alcohol intake

  

0.230

    Abstinence

634 (36.1%)

631 (36.0%)

 

    Moderate drinking

1079 (61.5%)

1096 (62.5%)

 

    Heavy drinking

41 (2.4%)

28 (1.6%)

 

Education level

  

0.080

    Less than high school

809 (46.1%)

773 (44.0%)

 

    High school

538 (30.7%)

600 (34.2%)

 

    College or more

408 (23.2%)

382 (21.8%)

 

    Physical activity

903 (51.5%)

869 (49.5%)

0.251

    eGFR (mL/min/1.73 m2)

90.2 ± 14.4

89.8 ± 14.0

0.340

    Calorie intake (%)

96.5 ± 32.4

96.3 ± 32.4

0.810

    Protein intake (%)

127.4 ± 67.6

128.7 ± 57.4

0.520

    Fat intake (%)

15.0 ± 7.7

15.2 ± 7.4

0.598

    Carbohydrate intake (%)

70.6 ± 10.9

70.9 ± 10.9

0.390

    Sodium intake (mg/1000 kcal)

2493 ± 1264

2452 ± 1274

0.347

    Occupational noise exposure (%)

219 (12.5%)

223 (12.7%)

0.839

    Explosive noise exposure (%)

400 (22.8%)

404 (23.0%)

0.872

  1. The data are expressed as numbers (percentages) for categorical variables and means ± standard deviations for continuous variables. The P-values were tested using t-tests for continuous variables and Pearson’s χ2 test or Fisher’s exact test for categorical variables.
  2. Abbreviation: eGFR, estimated glomerular filtration rate.