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. 2015 Jul 15;10(7):e0129687. doi: 10.1371/journal.pone.0129687

Table 2. Oral health conditions of both groups.

Control (n = 50) Obese (n = 100) p test
Salivary flow (median/interquartile deviation) 0.9 (0.55) 0.6 (0.59) 0.0024 Mann-Whitney
Number of absent teeth (median/interquartile deviation) 4 (3) 4 (6) 0.10 Mann-Whitney
Number of teeth with enamel alterations (median/interquartile deviation) 3.5 (6) 3 (6) 0.97 Mann-Whitney
Enamel wear (median/interquartile deviation) 26.5 (8.8) 21.0 (9.5) 0.0027 Mann-Whitney
Dentine wear (median/interquartile deviation) 5.2 (8.1) 12.5 (13.1) 0.0004 Mann-Whitney
Total wear (median/interquartile deviation) 33.3 (0.7) 33.3 (1.4) 0.31 Mann-Whitney
Salivary pH 6 6 (12%) 30 (30%) <0.01 Chi-square/Yates correction/ Fisher´s Exact
Salivary pH 7 40 (80%) 44 (44%)
Salivary pH 8 4 (8%) 25 (25%)
No bruxism 43 (86%) 79 (79%) 0.46 Chi-square/Yates correction
Bruxism 7 (14%) 21 (21%)
No difficult mastication 43 (86%) 77 (77%) 0.28 Chi-square/Yates correction
Difficult mastication 7 (14%) 23 (23%)
No bleeding on probing 38 (76%) 45 (45%) 0.0006 Chi-square/Yates correction
Bleeding on probing 12 (24%) 55 (55%)
No calculus 5 (10%) 3 (3%) 0.12 Fisher´s Exact
Calculus 45 (90%) 97 (97%)
No periodontal pocket 40 (80%) 43 (43%) < 0.0001 Chi-square/Yates correction
Periodontal pocket 10 (20%) 57 (57%)
CPI—Sound teeth 5 (10%) 2 (2%) < 0.0001 Chi-square/Yates correction
CPI—Calculus 36 (72%) 41 (41%)
CPI—PPD 4 to 5 mm 9 (18%) 49 (49%)
CPI—PPD 6 mm or more 0 (0%) 8 (8%)
CAL between 0 and 3 mm 49 (98%) 69 (69%) 0.0001 Chi-square/Yates correction
CAL between 4 and 5 mm 1 (2%) 18 (18%)
CAL between 6 and 8 mm (0%) 12 (12%)
CAL between 12 mm or more (0%) 1 (1%)
No initial caries lesion 9 (18%) 10 (10%) 0.26 Chi-square/Yates correction
Initial caries lesion 41 (82%) 90 (90%)
No caries 41 (82%) 66 (66%) 0.07 Chi-square/Yates correction
Caries 9 (18%) 34 (34%)