1 = 10-19
2 = 20-29
3 = 30-39
4 = 40-49
5 = 50-59

1 = unmarried
2 = married
3 = divorce
4 = Widowed
5 = cohabitation

1 = Primary school and below
2 = junior high school
3 = high school
4 = secondary specialized school
5 = junior college
6 = undergraduate
7 = master
8 = doctor and above

0 = Ctrl
1 = AGA

1 = L
2 = M0
3 = M1
4 = M2
5 = M3
6 = C0
7 = C1
8 = C2
9 = C3
10 = U1
11 = U2
12 = U3

0 = without hairline change
1 = with hairline change

0 = L/C0/M0
1 = C1/M1
2 = C2/M2
3 = C3/M3

1 = V1
2 = V2
3 = V3
4 = F1
5 = F2
6 = F3

1 = I-1
2 = I-2
3 = I-3
4 = I-4
5 = II-1
6 = II-2
7 = III
8 = Advanced
9 = Frontal

Savins Severity：I-mild；II and above-Moderate and severe
0 = normal
1 = mild
2 = Moderate and severe

1 = No
2 = Yes

1 = Less than 21 days
2 = 21 to 35 days
3 = more than 35 days
4 = irregular

menstrual duration
1 = less than 3 days
2 = 3 to 7 days
3 = more than 7 days
4 = irregular

1 = <5ml
2 = 5-80ml
3 = >80ml
4 = irrugular

1 = Pregnant and fertile
2 = unpregnancy and unborn
3 = pregnant but unborn

1 = Yes
2 = No

1 = yes
2 = no

frequency of Carbonated drinks（33.74）
1 = Less than 1 time per week
1.5 = 1 to 2 times per week
4.5 = 3 to 6 times per week
7 = more than 7 times per week

frequency of Tea flavored drinks（38.84）
1 = Less than 1 time per week
2 = 1 to 2 times per week
3 = 3 to 6 times per week
4 = more than 7 times per week

frequency of Tea Species
1 = Green tea
2 = black tea
3 = dark tea
4 = others

Drinking water volume
1 = <1L
2 = 1-1.5L
3 = 1.6-2L
4 = >2L

Be not interested in doing things
1 = completely not
2 = A few days in two weeks
3 = more than half of two weeks
4 = Almost every day

Depression or despair
1 = completely not
2 = A few days in two weeks
3 = more than half of two weeks
4 = almost every day