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Table 2 Baseline characteristics of the study population after propensity score matching

From: Comorbidities of nontuberculous mycobacteria infection in Korean adults: results from the National Health Insurance Service–National Sample Cohort (NHIS–NSC) database

 

Total

Men

Women

 

NTM (N = 893)a

Non-NTM (n = 3572)a

p value

NTM (n = 379)a

Non-NTM (n = 1516)a

p value

NTM (n = 514)a

Non-NTM (n = 2056)a

p value

Sex

  

1.0000

  

NA

  

NA

 Male

379 (42.4)

1516 (42.4)

 

NA

NA

 

NA

NA

 

 Female

514 (57.6)

2056 (57.6)

 

NA

NA

 

NA

NA

 

Age, years

56.1 ± 16.7

55.6 ± 16.5

0.7256

57.9 ± 16.2

57.6 ± 16.2

0.6949

54.3 ± 16.4

54.2 ± 16.7

0.8951

Age group

  

1.0000

  

1.0000

  

1.0000

 20–29

60 (6.7)

240 (6.7)

 

10 (2.6)

40 (2.6)

 

50 (9.7)

200 (9.7)

 

 30–39

128 (14.3)

512 (14.3)

 

63 (16.6)

252 (16.6)

 

65 (12.6)

260 (12.6)

 

 40–49

119 (13.3)

476 (13.3)

 

49 (12.9)

196 (12.9)

 

70 (13.6)

280 (13.6)

 

 50–59

175 (19.6)

700 (19.6)

 

59 (15.6)

236 (15.6)

 

116 (22.6)

464 (22.6)

 

 60–69

192 (21.5)

768 (21.5)

 

88 (23.2)

352 (23.2)

 

104 (20.2)

416 (20.2)

 

 70–79

174 (19.5)

696 (19.5)

 

84 (22.2)

336 (22.2)

 

90 (17.5)

360 (17.5)

 

 80–89

45 (5.0)

180 (5.0)

 

26 (6.9)

104 (6.9)

 

19 (3.7)

76 (3.7)

 

Incomeb

  

1.0000

  

1.0000

  

1.0000

 Low (0–2)

- (0.0)

- (0.0)

 

- (0.0)

- (0.0)

 

- (0.0)

- (0.0)

 

 Medium (3–7)

394 (44.1)

1576 (44.1)

 

174 (45.9)

696 (45.9)

 

220 (42.8)

880 (42.8)

 

 High (8–10)

499 (55.9)

1996 (55.9)

 

205 (54.1)

820 (54.1)

 

294 (57.2)

1176 (57.2)

 

Region of residencec

  

1.0000

  

1.0000

  

1.0000

 Urban

414 (46.4)

1656 (46.4)

 

150 (39.6)

600 (39.6)

 

264 (51.4)

1056 (51.4)

 

 Rural

479 (53.6)

1916 (53.6)

 

229 (60.4)

916 (60.4)

 

250 (48.6)

1000 (48.6)

 

No. of comorbidities

  

 < 0.0001

  

 < 0.0001

  

 < 0.0001

 0

28 (3.1)

349 (9.8)

 

21 (5.5)

200 (13.2)

 

7 (1.4)

149 (7.2)

 

 1–4

240 (26.9)

1579 (44.2)

 

105 (27.7)

694 (45.8)

 

135 (26.3)

885 (43.0)

 

 5–9

400 (44.8)

1224 (34.3)

 

166 (43.8)

449 (29.6)

 

234 (45.5)

775 (37.7)

 

  ≥ 10

225 (25.2)

420 (11.8)

 

87 (23.0)

173 (11.4)

 

138 (26.8)

247 (12.0)

 
  1. aData are presented as mean ± standard deviation or number (%)
  2. bIncome was divided into 11 classes (class 1, lowest income; class 11, highest income), which were reclassified into three groups (low, class 0–2; medium, class 3–7; high, 8–10). After propensity score matching, no individuals were in the “low (class 0–2)” group
  3. cRegion of residence was categorized into urban (Seoul, Busan, Daegu, Incheon, Gwangju, Daejeon, and Ulsan) and rural (Gyeonggi, Gangwon, Chungcheongbuk, Chungcheongnam, Jeollabuk, Jeollanam, Gyeongsangbuk, Gyeongsangnam, and Jeju)
  4. NTM, Nontuberculous mycobacteria infection
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