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Table 1 Background of the study population

From: Transcriptomics and methylomics in chronic periodontitis with tobacco use: a pilot study

 

Non-smoker

 

Smoker

 

P

 

Non-periodontitis

NN, (N = 5)

Periodontitis

NP, (N = 5)

P

Non-periodontitis

SN, (N = 5)

Periodontitis

SP, (N = 5)

P

Non-smoker vs. Smoker

Age (years)

44 (41–55)

53 (52–55)

0.525*

52 (47–54)

56 (52–56)

0.205*

0.676*

Men:women

3:2

1:4

0.444

5:0

4:1

0.206

0.350

Cigarettes/day

17.5 (5–25)

20.5 (8–22)

0.917*

Years smoking

16.5 (16.5–24)

27 (17–27.5)

0.295*

  1. Values are median (interquartile range)
  2. * P values are calculated by two-tailed Wilcoxon rank sum test
  3. P values are calculated by two-tailed Fisher’s exact test