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Table 1 Study sample characteristics (mean ± SD or N (%))

From: Low vitamin D status strongly associated with periodontitis in Puerto Rican adults

Variable

Cases (n = 19)

Controls (n = 19)

Age (y)

47.6 ± 8.7

46.7 ± 8.2

Sex (females/males)

14 (73.7 %)/5 (26.3 %)

14 (73.7 %)/5 (26.3 %)

BMI (kg/m2)

29.5 ± 5.1

29.3 ± 6.0

PD (mm)

2.3 ± 0.4

1.3 ± 0.3a

AL (mm)

2.6 ± 0.6

1.3 ± 0.4a

Serum 25 (OH) D (ng/ml)

18.5 ± 4.6

24.2 ± 7.1b

  1. aSignificantly different from cases (p < 0.0001; Student’s t-test)
  2. bSignificantly different from cases (p = 0.006; Student’s t-test)
  3. BMI Body mass index, PD probing depth, AL attachment level