Table 5 Cross-sectional association between body mass index, its combination with physical activity and dental caries experience (D3MFT) in the HUNT4 oral health study, stratified by age (n = 4752) using negative binomial regression models.

From: Body mass index, physical activity and dental caries: cross-sectional HUNT4 oral health study

  

Exposure

 

Adjusted Model1

Outcome

Age (years)

BMI (Kg/m2)

N

RM

95% CI

D3MFT

< 65

Normal2 (< 25.0)

1359

1.00

Reference

 

Overweight (25.0-29.9)

1458

1.19

1.14─1.23

 

Obese (≥ 30.0)

825

1.21

1.16─1.27

≥ 65

Normal2 (< 25.0)

337

1.00

Reference

 

Overweight (25.0-29.9)

530

1.00

0.97─1.02

 

Obese (≥ 30.0)

243

0.99

0.96─1.01

 

Combination of BMI and PA

   

D3MFT

< 65

Normal weight & active3

871

1.00

Reference

 

Normal weight & inactive4

488

0.99

0.93─1.06

 

Overweight/obese & active3

1239

1.21

1.15─1.26

 

Overweight/obese & inactive4

1044

1.18

1.12─1.24

≥ 65

Normal weight & active3

213

1.00

Reference

Normal weight & inactive4

124

1.00

0.97─1.04

Overweight/obese & active3

374

0.99

0.96─1.02

Overweight/obese & inactived

399

1.00

0.97─1.03

  1. BMI, Body mass index; CI Confidence Interval; D3MFT, Numbers of Decayed, Missing and Filled teeth; HUNT, The Trøndelag Health Study; RM, Ratio of means. aAdjusted for sex(male/female), smoking status (never/former/current/unknown), sugary drink intake (almost not/ 1–6 glass per week/≥2 per day/unknow), education (≤ 10 years/11–14 years/>14/unknown) and income (< 450,000 kr /451,000-1000,000 kr />1000,000 kr /unknown). Additional adjustment for leisure-time physical activity (no/low/moderate/high) for the association between BMI and D3MFT. bNormal and underweight categories were collapsed into one group since there were only 36 underweight participants; cActive referred to medium to high PA. dInactive referred to no and low PA.
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