hairsample_ip12

hairsample_ip12.headshk

Head shake observation

Type: choice

Source: UKHLS

Interviewer Instruction: IS THE RESPONDENT ABLE TO SIT WITH HEAD REMAINING STILL (E.G. WITHOUT CONTINUAL TREMOR/HEAD SHAKING)?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)

• l_headshk (l_hair_ip) Head shake observation

hairsample_ip12.haircut

Take hair sample

Type: choice

Source: ELSA

Interviewer Instruction: TAKE THE HAIR SAMPLE. ONCE THE HAIR SAMPLE HAS BEEN CUT, FOLD THE FOIL OVER THE HAIR SAMPLE TO ENSURE THE SAMPLE IS CONTAINED SECURELY WITHIN THE FOIL. PLACE THE HAIR SAMPLE INTO THE SAMPLE ENVELOPE WITH THE SCALP (CUT END) UPPERMOST. PLACE LABELLED HAIR SAMPLE ENVELOPE INTO THE DISPATCH ENVELOPE WITH THE DISPATCH NOTE AND CONSENT FORM. PLEASE SHIP THE HAIR SAMPLE AND SIGNED CONSENT FORM TO THE UNIVERSITY OF ESSEX, UNDERSTANDING SOCIETY. WAS THE HAIR SAMPLE OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)

• l_haircut (l_hair_ip) Take hair sample

hairsample_ip12.hrconsc

Explain consent hair

Type: choice

Source: UKHLS

Interviewer Instruction: COPY NUMBER ONTO CONSENT FORM FOR HAIR SAMPLE PID. GIVE PARTICIPANT THE CONSENT FORM FOR HAIR SAMPLE AND GO THROUGH IT WITH THEM IF NECESSARY. EXPLAIN THE CONSENT PROCEDURE. ASK PARTICIPANT TO SIGN AND DATE CONSENT FORM. DID PARTICIPANT SIGN AND DATE CONSENT FORM?

Text: Before I can take any hair, I have to obtain written consent from you.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)

• l_hrconsc (l_hair_ip) Explain consent hair

hairsample_ip12.hairnosa

No hair sample obtained

Type: choice

Source: UKHLS

Interviewer Instruction: WHY WAS NO HAIR SAMPLE OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 2 (Hair sample NOT obtained)

• l_hairnosa (l_hair_ip) No hair sample obtained

hairsample_ip12.hairstyle

Use hair styling product

Type: choice

Source: UKHLS

Text: Do you use any hair styling product, for example hair spray, mousse, wax or gel?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)

• l_hairstyle (l_hair_ip) Use hair styling product

hairsample_ip12.stylefreq

Hair styling product frequency

Type: choice

Source: UKHLS

Text: How frequently do you use hair styling products?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRSTYLE = 1 (Uses hair styling product)

• l_stylefreq (l_hair_ip) Hair styling product frequency

hairsample_ip12.hairnooth

Other reason no hair sample obtained

Type: string

Source: UKHLS

Interviewer Instruction: WHAT IS OTHER REASON SAMPLE NOT OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 2 (Hair sample NOT obtained)
and if HAIRNOSA = 97 (Other reason not obtained)

hairsample_ip12.hairkid

Child hair sample consent

Type: choice

Source: UKHLS

Interviewer Instruction: PLEASE HAND CHILD HAIR SAMPLE INFORMATION AND CONSENT FORM TO RESPONDENT AND WRITE ON: CHILD'S PID. MAKE SURE RESPONDENT TICKS BOXES WHERE APPROPRIATE. CODE OUTCOME FOR CONSENT TO TAKE HAIR SAMPLE FOR CHILD NAME.

Text: We would like to take hair samples from each of your children aged 10 to 15 years old. Could you read through this form and sign it if you wish to give permission.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)

• l_hairkid (l_hair_ip) Child hair sample consent

hairsample_ip12.hairkidcode

Sample labelling

Type: number

Source: UKHLS

Interviewer Instruction: PLEASE TAKE BARCODES FROM THE SHEET OF BARCODES. PLACE A BARCODE ON ZIPLOCK BAG FOR THE HAIR SAMPLE. PLACE A BARCODE ON THE CONSENT FORM. ENTER BARCODE NUMBER USED FOR THIS RESPONDENT.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)

• l_hairkidcode (l_hair_ip) Sample labelling

hairsample_ip12.hairkidcode2

Sample labelling check

Type: number

Source: UKHLS

Interviewer Instruction: PLEASE RE-ENTER BARCODE NUMBER USED FOR THIS RESPONDENT.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)

hairsample_ip12.haircutkid

Take child hair sample

Type: choice

Source: ELSA

Interviewer Instruction: TAKE THE HAIR SAMPLE FOR CHILD NAME. ONCE THE HAIR SAMPLE HAS BEEN CUT, FOLD THE FOIL OVER THE HAIR SAMPLE TO ENSURE THE SAMPLE IS CONTAINED SECURELY WITHIN THE FOIL. PLACE THE HAIR SAMPLE INTO THE SAMPLE ENVELOPE WITH THE SCALP (CUT END) UPPERMOST. PLACE LABELLED HAIR SAMPLE ENVELOPE INTO THE DISPATCH ENVELOPE WITH THE DISPATCH NOTE AND CONSENT FORM. PLEASE SHIP THE HAIR SAMPLE AND SIGNED CONSENT FORM TO THE UNIVERSITY OF ESSEX, UNDERSTANDING SOCIETY. WAS THE HAIR SAMPLE OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)

• l_haircutkid (l_hair_ip) Take child hair sample

hairsample_ip12.hairkidcard

Child Hair Incentive

Type: string

Source: UKHLS

Interviewer Instruction: IF NECESSARY: EXPLAIN THAT YOU NEED TO ENTER THE VOUCHER CODE TO ACTIVATE THE GIFT CARD.

Text: Thank you very much for letting me take a hair sample, here is your gift card as a thank you for doing this. We will have this activated and ready for you to use within 72 hours.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)

hairsample_ip12.nohairkidoth

Reason no child hair sample

Type: string

Source: UKHLS

Interviewer Instruction: WHAT IS THE OTHER REASON CHILD NAME HAIR SAMPLE NOT OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)
and if HAIRCUTKID = 2 (No hair sample obtained)
and if NOHAIRCUTKID = 97 (Other reason no child hair sample)

hairsample_ip12.nohaircutkid

Reason no child hair sample

Type: choice

Source: ELSA

Interviewer Instruction: WHY WAS NO CHILD HAIR SAMPLE OBTAINED?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & GRIDVARIABLES.NCH10to15 > 0 (Mode is face-to-face and respondent is assigned to a nurse AND is Responsible Adult for child between age 10-15)
and if HAIRKID = 1 (Consented for child to have haircut)
and if HAIRCUTKID = 2 (No hair sample obtained)

• l_nohaircutkid (l_hair_ip) Reason no child hair sample

hairsample_ip12.hairdye

Hair dyed

Type: choice

Source: ELSA

Text: Is your hair dyed?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)

• l_hairdye (l_hair_ip) Hair dyed

hairsample_ip12.stylewhat

What hair styling product used

Type: string

Source: UKHLS

Text: What kind(s) of hair styling product do you use?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRSTYLE = 1 (Uses hair styling product)

• l_stylewhat (l_hair_ip) What hair styling product used

hairsample_ip12.dyetime

When hair last dyed

Type: choice

Source: ELSA

Text: When did you last dye your hair?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRDYE = 1 (Hair is dyed)

• l_dyetime (l_hair_ip) When hair last dyed

hairsample_ip12.hairlen

Hair length observation

Type: choice

Source: UKHLS

Interviewer Instruction: DOES THE RESPONDENT HAVE MORE THAN 3 CMS OF HAIR LENGTH IN THE POSTERIOR VERTEX SCALP AREA (NOT INCLUDING ANY HAIR EXTENSIONS)?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)

• l_hairlen (l_hair_ip) Hair length observation

hairsample_ip12.hairwill

Hair sample consent

Type: choice

Source: ELSA

Text: We are interested in measuring hormones, for example cortisol and cortisone, which will tell us about any stress you might experience, and testosterone, which is a reproductive hormone. While we are interested in all of these hormones, cortisol is of particular interest because stress may be related to heart disease. The amount of these hormones released over time can be measured in hair. We would like to take a small sample of your hair for this reason. Please look over the following information and let me know if you have any questions. This is completely voluntary, but if you are willing for us to take a sample of your hair, we will give you a £5 voucher. GIVE THE PARTICIPANT THE HAIR SAMPLE COLLECTION INFORMATION SHEET AND EXPLAIN THE PROCEDURE COMPLETELY. ALLOW THEM TIME TO READ IT AND ASK YOU ANY QUESTIONS. IF THEY ARE UNABLE TO READ THE LEAFLET, GO THROUGH IT WITH THEM TO ENSURE THEY FULLY UNDERSTAND WHAT THE MEASUREMENT INVOLVES. Are you willing to let me collect a hair sample?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)

• l_hairwill (l_hair_ip) Hair sample consent

hairsample_ip12.haircol

Hair sample colour

Type: choice

Source: ELSA

Interviewer Instruction: WHAT COLOUR IS THE HAIR SAMPLE?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)

• l_haircol (l_hair_ip) Hair sample colour

hairsample_ip12.haircloth

Other hair colour

Type: string

Source: ELSA

Interviewer Instruction: PLEASE GIVE OTHER HAIR COLOUR.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRCOL = 97 (Other hair colour)

• l_haircloth_code (l_hair_ip) Other hair colour

hairsample_ip12.dyetype

What type of hair dye

Type: choice

Source: ELSA

Text: Did you use permanent or semi-permanent dye?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRDYE = 1 (Hair is dyed)

• l_dyetype (l_hair_ip) What type of hair dye

hairsample_ip12.orighair

Original hair colour

Type: choice

Source: UKHLS

Text: What is your natural hair colour?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRDYE = 1 (Hair is dyed)

• l_orighair (l_hair_ip) Original hair colour

hairsample_ip12.orighairoth

Natural other hair other

Type: string

Source: UKHLS

Interviewer Instruction: TYPE IN NATURAL OTHER HAIR COLOUR.

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRDYE = 1 (Hair is dyed)
and if ORIGHAIR = 97 (Other natural hair colour)

• l_orighairoth_code (l_hair_ip) Natural other hair other

hairsample_ip12.hairtrea

Had chemical hair treatment

Type: choice

Source: ELSA

Text: Has your hair been chemically treated, for example, having a perm, chemical straightening or the like?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)

• l_hairtrea (l_hair_ip) Had chemical hair treatment

hairsample_ip12.hairtrea2

When last chemical hair treatment

Type: choice

Source: ELSA

Text: When did you last have it done?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRTREA = 1 (Hair has been chemically treated)

• l_hairtrea2 (l_hair_ip) When last chemical hair treatment

hairsample_ip12.hairtrea3

What last chemical treatment

Type: string

Source: UKHLS

Text: What kind(s) of chemical treatments did you have?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)
and if HAIRTREA = 1 (Hair has been chemically treated)

• l_hairtrea3_code (l_hair_ip) What last chemical treatment

hairsample_ip12.hairwet

How often hair wet

Type: number

Source: ELSA

Text: Apart from when it rains, on average how many times per week do you get your hair wet, for example from swimming or washing?

Universe:
if (GRIDVARIABLES.MODETYPE = 1 & ff_gridmodew12 = 4) & ((ANNUALEVENTHISTORY.PREGOUT <> 4 & FERTILITYHISTORY.PREGN <> 1) & ANNUALEVENTHISTORY.BRFED <> 3 & ANNUALEVENTHISTORY.BRFEDSTILL <> 1 & FERTILITYHISTORY.BREASTFEED <> 1) (Mode is face-to-face and respondent is assigned to a nurse AND respondent is not pregnant or currently breastfeeding)
and if HAIRLEN = 1 & HEADSHK = 1 (Has hair longer than 2cm and can keep head still)
and if HAIRWILL = 1 (Willing to provide hair sample)
and if HRCONSC = 1 (Signed consent form)
and if HAIRCUT = 1 (Hair sample obtained)

• l_hairwet (l_hair_ip) How often hair wet