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

Table 3 The associations of drinking water and dietary habits with number of natural teeth^※

Models	β	95 % CI	P
Model 1
Drinking habits
Un-boiled water	Ref
Boiled water	0.149	-0.158 ~ 0.457	0.342
Model 2
Drinking water sources at around 60 years
Tap water	Ref
Well	-1.036	-1.206~ -0.865	< 0.001
Surface water	-0.880	-1.122~ -0.637	< 0.001
Spring	-1.331	-1.715~ -0.947	< 0.001
Model 3
Staple food	Ref
Rice
Corn	-0.336	-0.689 ~ 0.018	0.063
Wheat	-0.684	-0.865~ -0.503	< 0.001
Rice and wheat	0.091	-0.127 ~ 0.309	0.413
Model 4
Frequency of intake fresh fruit
Almost everyday	Ref
Quite often	-0.282	-0.534~ -0.029	0.029
Occasionally	-0.586	-0.809~ -0.364	< 0.001
Rarely or never	-1.002	-1.249~ -0.755	< 0.001
P for trend	-0.335	-0.411~ -0.258	< 0.001
Model 5
Frequency of intake vegetables
Almost everyday	Ref
Quite often	-0.595	-0.766~ -0.425	< 0.001
Occasionally	-0.505	-0.729~ -0.282	< 0.001
Rarely or never	-0.755	-1.224~ -0.287	0.002
P for trend	-0.315	-0.403~ -0.226	< 0.001
Model 6
Frequency of intake meat
Almost everyday	Ref
Occasionally	-0.265	-0.425~ -0.105	0.001
Rarely or never	-0.236	-0.441~ -0.031	0.024
P for trend	-0.143	-0.242~ -0.043	0.005
Model 7
Frequency of intake fish
Almost everyday	*Ref*
Occasionally	-0.384	-0.562~ -0.207	< 0.001
Rarely or never	-0.646	-0.840~ -0.451	< 0.001
P for trend	-0.320	-0.417~ -0.223	< 0.001

^※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

ISSN: 1471-2318