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Table 3 Comparison of probing pocket depths and probing attachment loss at baseline, 2 months and 3 months between NSPT and OHI group

From: Effect of nonsurgical periodontal therapy verses oral hygiene instructions on Type 2 diabetes subjects with chronic periodontitis: a randomised clinical trial

  NSPT group (n = 15) OHI group ( n = 17) *p p
  Sites with PPD < 4 mm (% ± SD) Sites with PAL < 4 mm (% ± SD) Sites with PPD < 4 mm (% ± SD) Sites PAL < 4 mm (% ± SD)   
Baseline 81.14 ± 13.38 63.45 ± 21.29 87.54 ± 15.00 75.98 ± 20.37 0.215 0.099
2 months 95.61 ± 3.50 71.60 ± 19.26 90.32 ± 15.29 78.99 ± 21.17 0.138 0.312
3 month 97.96 ± 1.75 74.93 ± 18.03 91.67 ± 14.86 80.10 ± 21.57 0.633 0.472
P1 value <0.001* <0.001* 0.001* <0.001*   
P2 value <0.001* <0.001* <0.001* <0.001*   
P3 value 0.008* 0.002* 0.001* 0.005*   
Effect Size1 1.205 0.822 0.991 0.792   
Effect Size2 1.289 0.982 1.383 0.928   
Effect size3 0.794 0.994 0.962 0.786   
  Sites with PPD Sites with PAL Sites with PPD Sites with PAL   
  4-6 mm (% ± SD) 4-6 mm (% ± SD) 4-6 mm (% ± SD) 4-6 mm (% ± SD)   
Baseline 16.51 ± 10.97 28.62 ± 16.19 11.00 ± 9.52 19.59 ± 12.06 0.201 0.082
2 months 4.28 ± 3.53 23.69 ± 16.84 8.54 ± 10.87 17.55 ± 13.72 0.158 0.264
3 month 2.04 ± 1.75 21.40 ± 16.06 7.31 ± 10.85 16.63 ± 14.44 0.381 0.384
P1 value <0.001* <0.001* 0.005* <0.001*   
P2 value <0.001* <0.001* <0.001* <0.001*   
P3 value 0.012* 0.013* 0.002* 0.032*   
Effect Size1 1.303 0.624 0.797 0.516   
Effect Size2 1.371 0.769 1.127 0.619   
Effect Size3 0.749 0.733 0.900 0.570   
  Sites with PPD Sites with PAL Sites with PPD Sites with PAL   
  >6 mm (% ± SD) >6 mm (% ± SD) >6 mm (% ± SD) >6 mm (% ± SD)   
Baseline 2.36 ± 3.14 7.93 ± 7.87 1.54 ± 5.80 4.29 ± 9.77 0.115 0.260
2 months 0.06 ± 0.23 4.55 ± 4.64 1.14 ± 4.69 3.40 ± 8.91 0.074 0.656
3 month 0.00 ± 0.00 3.67 ± 4.06 1.02 ± 4.20 3.27 ± 8.40 0.356 0.869
P1 value 0.012* 0.001* 0.168 <0.001*   
P2 value 0.012* 0.001* 0.203 <0.001*   
P3 value 0.334 0.011* 0.332 0.407   
Effect Size1 0.747 0.655 0.350 0.757   
Effect Size2 0.749 0.803 0.322 0.612   
Effect Size3 0.258 0.751 0.243 0.207   
  Mean PPD (mean ± SD) Mean PAL (mean ± SD) Mean PPD (mean ± SD) Mean PAL (mean ± SD)   
Baseline 2.56 ± 0.57 3.35 ± 0.83 2.29 ± 0.69 2.79 ± 0.96 0.535 0.089
2 months 1.94 ± 0.26 2.92 ± 0.72 2.09 ± 0.72 2.62 ± 0.97 0.459 0.329
3 months 1.76 ± 0.19 2.73 ± 0.70 2.02 ± 0.71 2.56 ± 0.97 0.179 0.560
P1 value 0.004* <0.001* <0.001* <0.001*   
P2 value 0.003* <0.001* <0.001* <0.001*   
P3 value <0.001* <0.001* 0.001* 0.002*   
Effect Size1 0.873 1.893 1.090 1.396   
Effect Size2 2.057 2.057 1.528 1.528   
Effect Size3 1.506 1.697 0.967 1.282   
  1. *p - intergroup p-value for PPD.
  2. p - intergroup p-value for PAL.
  3. p1 - p-value of baseline compared to 2 months (*p < 0.05 - statistically significant).
  4. p2 - p-value of baseline compared to 3 months (*p < 0.05 - statistically significant).
  5. p3 – p-value of 2 months compared to 3 months (*p < 0.05 -statistically significant).
  6. Effect Size1 - effect size of baseline compared to 2 months.
  7. Effect Size2 – effect size of baseline compared to 3 months.
  8. Effect Size3 – effect size of 2 months compared to 3 months.