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. 2015 Mar 24;15:41. doi: 10.1186/s12903-015-0026-6

Table 1.

Characteristics and oral hygiene habits of the subjects with or without pathological periodontal pockets (PD ≥ 4 mm)

With PD ≥4 mm Without PD ≥4 mm
Variables (n = 14) (n = 61) P-value 1
Male/female ratio 8/6 34/27 0.925
Mean (SD) Mean (SD)
Age 14.5 (1.6) 14.5 (1.6) 0.998
Weight (kg) 105.0 (21.8) 108.5 (23.4) 0.855
Height (m) 1.71 (0.12) 1.70 (0.10) 0.637
BMI-sds2 5.3 (1.3) 5.7 (1.1) 0.209
n (%) n (%)
Chronic disease 3 (21) 17 (28) 0.629
 Diabetes type 2 1 (7) 5 (8) 0.885
 Thyroid dysfunctions 1 (7) 4 (7) 0.938
Daily use of prescribed medication 3 (21) 21 (34) 0.354
Parents Country of birth
 Mother - Sweden 7 (50) 35 (57)
     - Not Sweden 7 (50) 26 (43) 0.497
 Father  - Sweden 6 (43) 35 (57)
     - Not Sweden 8 (57) 26 (43) 0.260
Parents education3
 Both parents  ≤12år 11 (79) 40 (66)
 One parent  >12år 1 (7) 14 (23)
 Both parents  >12år 1 (7) 7 (11) 0.277
Tooth brushing
 Daily morning 7 (50) 30 (49) 0.832
 Daily evening 6 (43) 32 (52) 0.450
Daily flossing 1 (7) 2 (3) 0.948

1ONEWAY ANOVA and Chi2 used as statistical methods.

2According to Rolland-Cacherra [22].

3Education level of one parent was unknown to the participating subject.