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Table 1 Patient characteristics

From: Saliva‑microbiome‑derived signatures: expected to become a potential biomarker for pulmonary nodules (MCEPN-1)

Characteristics

PN group (n = 173)

HC group (n = 40)

P value

Age (years), median (IQR)a

45 (32, 55)

42 (33, 48)

0.39

Gender, n (%)b

  

0.25

Male

69 (39.9%)

12 (30%)

 

Female

104 (60.1%)

28 (70%)

 

Smoking history, n (%)b

  

< 0.001

NO

134 (77.5%)

40 (100.0%)

 

Yes

39 (22.5%)

0 (0.0%)

 

Personal history of cancer, n (%)c

  

0.99

NO

167 (96.5%)

39 (97.5%)

 

Yes

6 (3.5%)

1 (2.5%)

 

Risk stratification of PN, n (%)

Unable to layer

9 (5.2%)

/

 

Low risk

100 (57.8%)

/

 

Moderate risk

58 (33.5%)

/

 

High risk

6 (3.5%)

/

 
  1. P < 0.05 was considered a statistically significant difference
  2. IQR, interquartile range; PN, pulmonary nodule; HC, healthy control
  3. a: Wilcoxon rank sum test; b: Chisq test; c: Yates’ correction