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Table 2 Comparison of clinical attachment loss (per millimeters) between study group and control group

From: Periodontal status of rheumatoid arthritis patients in khartoum state

  Cases (N = 80) Controls (N = 80) P Value*
≤ 1.17 52 (65%) 70 (87.5%) 0.006
> 1.17 to ≤ 2.33 20 (25%) 7 (8.75%)  
> 2.33 to ≤ 3.5 5 (6.25%) 3 (3.75%)  
> 3.5 3 (3.75%) 0 (0%)  
Mean ± SD 1.03 ± 0.95 0.56 ± 0.62 0.0002