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Table 4 Distribution of CPI and Russell’s periodontal index by diabetes-related factors

From: Association between diabetes-related factors and clinical periodontal parameters in type-2 diabetes mellitus

Variables N (%) CPI Russell’s periodontal index
Code 0,1,2 Code 3 Code 4 p Code 0,1,2,4 Code 6 Code 8 p
N(%) N(%) N(%) N(%) N(%) N(%)
Duration of diabetes illness
 ≤5 years 36 (28.8) 5(13.9) 17(47.2) 14(38.9) 0.018 5(13.9) 14(38.9) 17(47.2) 0.036
 6-9 years 74 (59.2) 2(2.7) 33(44.6) 39(52.7)   3(4.1) 30(40.5) 41(55.4)  
 >10 years 15 (12.0) 0(0.0) 3(20.0) 12(80.0)   0(0.) 2(13.3) 13(86.7)  
Fasting blood glucose (mg/dl)
 <140 26 (20.8) 5(19.2) 16(61.5) 5(19.2) <0.001 2(7.7) 12(46.2) 12(46.2) 0.007
 140-199 50 (40.0) 2(4.0) 22(44.0) 26(52.0)   6(12.0) 22(44.0) 22(44.0)  
 >199 49 (39.2) 0(0.0) 15(30.6) 34(69.4)   0(0.0) 12(24.5) 37(75.5)  
HbA1c (%)
 <7 38 (30.4) 5(13.2) 19(50.0) 14(36.8) 0.013 6(15.8) 19(50.0) 13(34.2) 0.001
 ≥7 (69.6) 2(2.3) 34(39.1) 51(58.6)   2(2.3) 27(31.0) 58(66.7)  
Compliance to self management of diabetes
 Do-well 70(56.0) 6(8.6) 32(45.7) 32(45.7) 0.127 8(11.4) 27(38.6) 35(50.0) 0.021
 Not do-well 55(44.0) 1(1.8) 21(38.2) 33(60.0)   0(0.0) 19(34.5) 36(65.5)  
  1. p by chi-squared tests.