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Table 1 Periodontal evaluation in the test group (smokers) and in the control group (non-smokers)

From: Levels of salivary immunoglobulins and periodontal evaluation in smoking patients

Periodontal parameter Test group Control group P value
PI (mean ± SD) 2.2 ± 0.3 0.8 ± 0.4 < 0.05
GI (mean ± SD) 2.4 ±0.5 0.7 ± 0.3 < 0.05
PD (%) 49.3 ± 9.2 10.6 ± 2.4 < 0.05
CAL (%) 29.6 ± 4.6 3.1 ± 0.8 < 0.05
  1. PI: plaque index.
  2. GI: gingival index.
  3. PD: probing depth.
  4. CAL: clinical attachment level.