Table 1 Patient characteristics and treatment duration in total and by sex.

From: Evaluation of periodontitis-related tooth loss according to the new 2018 classification of periodontitis

 

Male (n = 179)

Female (n = 428)

p-value

Total (n = 607)

Mean ± SD

Median (25% quantile, 75%quantile)

Mean ± SD

Median (25% quantile, 75%quantile)

 

Mean ± SD

Median (25% quantile, 75%quantile)

Age (year)

55.3 ± 12.0

57.0 (48.0, 63.0)

54.0 ± 11.8

53.0 (46.0, 62.0)

0.18*

54.4 ± 11.9

54.0 (47.0, 62.5)

Number of teeth

26.3 ± 3.7

25.0 (25.0, 28.0)

26.0 ± 3.7

27.0 (24.0, 28.0)

0.37†

26.1 ± 3.7

27.0 (25.0, 28.0)

APT + SPT duration (months)

81.7 ± 32.9

81.0 (54.0, 108.0)

80.7 ± 34.7

77.5 (52.0, 107.3)

0.59†

80.9 ± 34.2

80.0 (53.0, 108.0)

APT duration (months)

11.2 ± 6.7

10.0 (7.0, 14.0)

11.0 ± 6.3

10.0 (7.0, 14.0)

0.96†

11.1 ± 6.4

10.0 (7.0, 14.0)

SPT duration (months)

70.5 ± 35.4

66.0 (42.0, 96.5)

69.6 ± 36.1

68.0 (40.5, 96.3)

0.73†

69.9 ± 35.3

67.0 (41.0, 96.5)

  1. Statistical analysis between the two groups with age was performed with Student’s t test. Statistical analysis between the two groups with other variables was performed with the Mann–Whitney U test.
  2. SD standard deviation; APT active periodontal therapy; SPT supportive periodontal therapy.
  3. *p-value from Student’s t test.
  4. †p-value from the Mann–Whitney U test.
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