dental_hygiene

ECE 143 Group 18

Data preprocessing

Load dietary, nutrition and dental datasets (as described in prososal) and join them together. The training data is stored in file "train_data.csv".

To checkout the meaning of each column, please refer to the documentation websites:

https://wwwn.cdc.gov/Nchs/Nhanes/2017-2018/P_DSQTOT.htm

https://wwwn.cdc.gov/Nchs/Nhanes/2017-2018/P_DR1TOT.htm

https://wwwn.cdc.gov/Nchs/Nhanes/2017-2018/P_OHXDEN.htm

Our dataset has 13772 observations and 374 features with a lot of empty entries.

Dietary dataset

Missing values are treated as 0: The reason why many entries are missing is that many respondents didn't have any dietary supplement.

Answers "Refused" or "Don't know" in "DSDCOUNT - Total # of Dietary Supplements Taken", "DSDANCNT - Total # of Antacids Taken", "DSD010 - Any Dietary Supplements Taken?" and "DSD010AN - Any Antacids Taken?" are treated as 0 or No.

Dental Dataset

Conversion Matrices :

Tooth Count

Code	Description	Count	Cumulative	Convert
1	Primary tooth (deciduous) present	0	0	1
2	Permanent tooth present	7534	7534	1
3	Dental implant	4	7538	0
4	Tooth not present	5609	13147	0
5	Permanent dental root fragment present	131	13278	0
9	Could not assess	0	13278	0
.	Missing	494	13772	0

Caries

Code	Description	Count	Cumulative	Convert
A	Primary tooth with a restored surface condition	0	0	1
D	Sound primary tooth	0	0	0
E	Missing due to dental disease	1197	1197	1
F	Permanent tooth with a restored surface condition	2908	4105	1
J	Permanent root tip is present but no restorative replacement is present	131	4236	1
K	Primary tooth with a dental carious surface condition	0	4236	1
M	Missing due to other causes	47	4283	1
P	Missing due to dental disease but replaced by a removable restoration	1019	5302	1
Q	Missing due to other causes but replaced by a removable restoration	37	5339	1
R	Missing due to dental disease but replaced by a fixed restoration	13	5352	1
S	Sound permanent tooth	4394	9746	0
T	Permanent root tip is present but a restorative replacement is present	0	9746	1
U	Unerupted	3297	13043 nan
X	Missing due to other causes but replaced by a fixed restoration	0	13043	nan
Y	Tooth present, condition cannot be assessed	11	13054	nan
Z	Permanent tooth with a dental carious surface condition	220	13274	1

Dental Sealants Data Description

Code	Description	Count	Cumulative	Convert
0	Sealant not present	4194	4194	0
1	Occlusal sealant on permanent tooth	102	4296	1
2	Facial sealant on permanent tooth	0	4296	1
3	Lingual sealant on permanent tooth	0	4296	1
4	Occlusal sealant on primary tooth	51	4347	1
9	Cannot be assessed	41	4388	nan
12	Occlusal-facial sealant on permanent tooth	0	4388	1
13	Occlusal-lingual sealant on permanent tooth	0	4388	1
nan	Missing	9384	13772	nan

Root Caries, other lesions X [restored , not] Data Description

Code	Description	Count	Convert
1	Yes	1085	1
2	No	6916	0
9	Cannot be accessed	7	nan
.	Missing	5764	nan

Models

Run train to get a dict of Classifiers to Accuracy

Sreebhargavibalijaa/Dietaryanalysis