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Table 1 Comparison of the probeable pocket depth (per millimeters) between study and control groups

From: Periodontal status of rheumatoid arthritis patients in khartoum state

  Cases (N = 80) Controls (N = 80) P Value*
≤ 0.5 52 (65%) 77 (96.25%) 0.000
> 0.5 to ≤ 1 20 (25%) 2 (2.5%)  
> 1 to ≤ 1.5 5 (6.25%) 1 (1.25%)  
> 1.5 3 (3.75%) 0 (0%)  
Mean ± SD 0.46 ± 0.42 0.15 ± 0.22 0.000