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Table 2 Relationship between Vitamin C and periodontitis in different models

From: The association between dietary vitamin C intake and periodontitis: result from the NHANES (2009–2014)

Exposure

Non-adjusted

Adjust I

Adjust II

Vitamin C(mg)

1.0 (1.0, 1.0) 0.774

1.0 (1.0, 1.0) 0.162

1.0 (1.0, 1.0) 0.648

Vitamin C(quartile)

Q1

1.0

1.0

1.0

Q2

0.93 (0.79, 1.08) 0.3335

0.85 (0.72, 1.00) 0.0569

0.98 (0.82, 1.17) 0.8165

Q3

0.80 (0.68, 0.93) 0.0046

0.68 (0.57, 0.80) < 0.0001

0.78 (0.65, 0.93) 0.0062

Q4

0.88 (0.76, 1.03) 0.1142

0.73 (0.62, 0.87) 0.0003

0.93 (0.78, 1.12) 0.4593

P for trend

0.0367

 < 0.0001

0.1345

  1. Non-adjusted model adjust for: None
  2. Adjust I model adjust for: Age; Sex; Race
  3. Adjust II model adjust for: Age; Sex; Race; Had at least 12 alcohol drinks/one year?; BMI; Hypertension; Hyperlipidemia; Education level; Marital status; Annual household income; Diabetes history; General health condition; Number of flossing/a weeks; Sleep disorder; Smoked at least 100 cigarettes in life; Energy
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BMC Oral Health

ISSN: 1472-6831

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