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Table 1 Characteristics of the subjects according to diagnosis of periodontitis (male)

From: Effect of periodontitis on the development of osteoporosis: results from a nationwide population-based cohort study (2003–2013)

  Total Non-Diagnosed Diagnosed  
N % N % N % P-value
Total 8884 100 7403 83.3 1481 16.7  
Age 30 ~ 39 2592 29.2 2160 83.3 432 16.7 1.0000
40 ~ 49 3412 38.4 2843 83.3 569 16.7  
50 ~ 59 1860 20.9 1550 83.3 310 16.7  
≥ 60 1020 11.5 850 83.3 170 16.7  
Smoking Non-smoker 3560 40.1 2992 84.0 568 16.0 0.2452
Ex-smoker 773 8.7 648 83.8 125 16.2  
Smoker 4551 51.2 3763 82.7 788 17.3  
Alcohol None 2757 31.0 2286 82.9 471 17.1 0.8023
2 ~ 3/month 2049 23.1 1716 83.7 333 16.3  
1 ~ 2/week 2612 29.4 2183 83.6 429 16.4  
3 ~ 4/week 998 11.2 823 82.5 175 17.5  
≥ 5/week 468 5.3 395 84.4 73 15.6  
Physical activity None 4253 47.9 3563 83.8 690 16.2 0.4111
1 ~ 2/week 2920 32.9 2434 83.4 486 16.6  
3 ~ 4/week 993 11.2 810 81.6 183 18.4  
5 ~ 7/week 718 8.1 596 83.0 122 17.0  
BMI(kg/m2) < 18.5 180 2.0 160 88.9 20 11.1 0.0001
18.5 ~ 23 2990 33.7 2545 85.1 445 14.9  
23 ~ 27.5 4763 53.6 3938 82.7 825 17.3  
> 27.5 951 10.7 760 79.9 191 20.1  
CCI 0 6310 71.0 5262 83.4 1048 16.6 0.9692
1 1691 19.0 1407 83.2 284 16.8  
≥ 2 883 9.9 734 83.1 149 16.9  
Hypertension NO 8277 93.2 6897 83.3 1380 16.7 0.9829
YES 607 6.8 506 83.4 101 16.6  
Diabetes NO 8568 96.4 7141 83.3 1427 16.7 0.8391
YES 316 3.6 262 82.9 54 17.1  
Osteoporosis NO 8787 98.9 7326 83.4 1461 16.6 0.2942
YES 97 1.1 77 79.4 20 20.6  
  1. IW industrial worker, SE self-employer, BMI body mass index, CCI Charlson comorbidity index