Skip to main content

Table 1 Clinical characteristics of the study population before and after matching

From: Health-related quality of life after pulmonary tuberculosis in South Korea: analysis from the Korea National Health and Nutrition Examination Survey between 2010 and 2018

  Pre-matched (n = 25,214) Post-matched (n = 7260)
  Without past pulmonary TB history (n = 24,004) With past pulmonary TB history (n = 1210) p-value Without past pulmonary TB history (n = 6050) With past pulmonary TB history (n = 1210) p-value
Age (years)     < 0.001*    0.305
 40–49 34.22 22.89   24.46 22.89  
 50–59 30.90 31.58   27.05 31.58  
 60–69 19.95 23.50   24.74 23.50  
 ≥ 70 14.93 22.03   23.75 22.03  
Sex     < 0.001*    0.757
 Male 47.16 58.64   59.24 58.64  
 Female 52.84 41.36   40.76 41.36  
BMI (kg/m2)     < 0.001*    0.135
 < 18.5 1.51 3.50   2.65 3.50  
 18.5–24.9 60.69 68.89   69.03 68.89  
 25–29.9 33.57 24.68   26.16 24.68  
 ≥ 30 4.23 2.94   2.15 2.94  
Marital status    0.045*    0.564
 Married 84.06 83.18   82.22 83.18  
 Widowed/Separated 8.50 8.08   9.19 8.08  
 Divorced 4.49 6.4   5.17 6.4  
 Unmarried 2.95 2.34   3.42 2.34  
Income    0.803    0.822
 Low 23.97 23.87   24.28 23.87  
 Intermediate 50.72 51.73   51.20 51.73  
 High 25.30 24.41   24.52 24.41  
Education    0.055    0.383
 Elementary school graduate 24.55 28.13   26.44 28.13  
 Middle/High school graduate 48.22 46.14   47.03 46.14  
 College graduate 27.23 25.74   26.53 25.74  
Smoking status     < 0.001*    0.949
 Non-smoker 56.82 49.07   49.77 49.07  
 Past smoker 22.74 30.46   29.82 30.46  
 Current smoker 20.44 20.47   20.41 20.47  
Physical activity       
 Regular walking 37.75 38.42 0.692 39.11 38.42 0.550
 Regular muscle exercise 21.19 23.80 0.049 23.85 23.80 0.488
Mental health       
 Severe stress 22.83 22.30 0.704 20.09 22.30 0.254
 Depressive disorder 4.42 4.62 0.771 3.61 4.62 0.373
Lung function       
 FEV1 (%-predicted)     < 0.001*    0.949
  ≥ 80 83.98 65.48   65.71 65.48  
  < 80 16.02 34.52   34.29 34.52  
 FVC (%-predicted)     < 0.001*    0.545
  ≥ 80 86.61 75.24   75.86 75.24  
  < 80 13.39 24.76   24.14 24.76  
 FEV1/FVC     < 0.001*    0.876
  ≥ 0.7 87.48 71.10   70.84 71.10  
  < 0.7 12.52 28.90   29.16 28.90  
Comorbidities       
 HTN 36.94 40.64 0.030* 41.23 40.64 0.588
 DM 13.47 13.15 0.787 15.75 13.15 0.052
 Cancer 0.67 0.90 0.368 0.92 0.90 0.814
  1. Participants were matched using propensity score matching with age, sex, BMI, marital status, smoking status, education, regular muscle exercise, FEV1, FVC, and FEV1/FVC. Values are expressed as weight percentage. The* p-value < 0.05 indicates significant difference between two groupswas calculated using the design-based t-test
  2. TB, tuberculosis; BMI, body mass index; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; HTN, hypertension; DM, diabetes mellitus