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Table 3 Factors associated with moderate and severe periodontal disease compared with no periodontal disease (n = 637)

From: Prevalence and risk factors of periodontal disease among pre-conception Chinese women

Characteristics

Moderate and severe periodontitis

Yes

n (%)

No

n (%)

P *

OR**

95% CI**

P **

Age (years)

 < 30

314 (82.8)

210 (81.4)

0.637

1

  

 ≥ 30

65 (17.2)

48 (18.6)

 

0.88

0.52–1.50

0.636

Education level

 Junior middle school and below

21 (5.5)

11 (4.3)

0.690

1

  

 Senior middle school

24 (6.3)

19 (7.4)

 

0.64

0.24–1.74

0.386

 College and above

334 (88.1)

228 (88.4)

 

0.75

0.33–1.69

0.486

Family income per month

 < 4,000RMB

12 (3.2)

10 (3.9)

0.630

1

  

 ≥ 4,000RMB

367 (96.8)

248 (96.1)

 

1.11

0.45–2.71

0.827

Employment status

 Unemployed

83 (21.9)

62 (24.0)

0.529

1

  

 Employed

296 (78.1)

196 (76.0)

 

1.12

0.76–1.67

0.569

Overweight

 No

345 (91.0)

243 (94.2)

0.142

1

  

 Yes

34 (9.0)

15 (5.8)

 

1.72

0.89–3.30

0.105

Periodontitis family history

 No

178 (47.0)

120 (46.5)

0.533

1

  

 Yes

42 (11.1)

36 (14.0)

 

0.71

0.42–1.20

0.201

 unknown

159 (42.0)

102 (39.5)

 

0.94

0.66–1.35

0.738

Parity

 0

325 (85.8)

222 (86.0)

0.917

1

  

 1 or 2

54 (14.2)

36 (14.0)

 

1.15

0.62–2.11

0.658

Health insurance for oral health

 No

358 (94.5)

243 (94.2)

0.884

1

  

 Yes

21 (5.5)

15 (5.8)

 

0.78

0.38–1.62

0.51

Oral hygiene

 Tooth brushing less than 2 times/day

80 (21.1)

48 (18.6)

0.439

1

  

 Tooth brushing at least 2 times/day

299 (78.9)

210 (81.4)

 

0.88

0.58–1.35

0.561

Stress

 Lower

174 (45.9)

114 (44.2)

0.668

1

  

 Higher

205 (54.1)

144 (55.8)

 

0.82

0.59–1.16

0.260

Self-reported bleeding during tooth brushing

 Occasionally or never

275 (72.6)

239 (92.6)

 

1

  

 Always or often

104 (27.4)

19 (7.4)

<0.001

5.17

3.05–8.79

<0.001

  1. *Pearson chi-square test; **Multiple logistic regression, adjusted for all other variables in the table