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Table 6 The associations of drinking water and dietary habits with number of natural teeth in the sensitivity analysis

From: Associations of dietary and drinking water habits with number of natural teeth: a longitudinal study in the Chinese elderly population

Models

β

95 % CI

P

Model 1#

   

Drinking habits

   

Un-boiled water

Ref

  

Boiled water

0.033

-0.275 ~ 0.341

0.835

Model 2#

   

Drinking water sources

at around 60 years

   

Tap water

Ref

  

Well

-0.927

-1.099~ -0.754

< 0.001

Surface water

-0.896

-1.141~ -0.650

< 0.001

Spring

-1.313

-1.700~ -0.925

< 0.001

Model 3#

   

Staple food

   

Rice

Ref

  

Corn

-0.212

-0.568 ~ 0.144

0.243

Wheat

-0.480

-0.669~ -0.292

< 0.001

Rice and wheat

0.042

-0.178 ~ 0.263

0.708

Model 4#

   

Frequency of intake fresh fruit

   

Almost everyday

Ref

  

Quite often

-0.075

-0.329 ~ 0.180

0.566

Occasionally

-0.312

-0.542~ -0.083

0.008

Rarely or never

-0.700

-0.959~ -0.442

< 0.001

P for trend

-0.245

-0.325~ -0.165

< 0.001

Model 5#

   

Frequency of intake vegetables

   

Almost everyday

Ref

  

Quite often

-0.522

-0.694~ -0.351

< 0.001

Occasionally

-0.353

-0.578~ -0.127

0.002

Rarely or never

-0.597

-1.068~ -0.126

0.013

P for trend

-0.246

-0.336~ -0.156

< 0.001

Model 6#

   

Frequency of intake meat

   

Almost everyday

Ref

  

Occasionally

-0.047

-0.215 ~ 0.122

0.586

Rarely or never

0.062

-0.165 ~ 0.288

0.593

P for trend

0.019

-0.092 ~ 0.129

0.740

Model 7#

   

Frequency of intake fish

   

Almost everyday

Ref

  

Occasionally

-0.284

-0.472~ -0.097

0.003

Rarely or never

-0.493

-0.712~ -0.274

< 0.001

P for trend

-0.244

-0.353~ -0.135

< 0.001

  1. In all models, age, sex, weight, marital status, education, ethnicity, current smoker, current alcohol consumer, physical activity, living areas, false teeth, self-reported health, history of hypertension, history of diabetes, history of cardiovascular diseases, and wave were adjusted
  2. #When one of drinking habits, drinking water sources at around 60 years, staple food, frequency of intake fresh fruit, frequency of intake vegetables, frequency of intake meat, frequency of intake fish, and frequency of intake egg was analyzed, other seven factor were additionally adjusted