Fertility among female hairdressers

This study is part of the collection Scania Metadatabase for Epidemiology (SME)

Creator/Principal investigator(s):

Anna Axmon - Region Skåne, Occupational and Environmental Medicine

Description:

The study investigated whether working as a hairdresser has a negative impact on fertility, measured as time to pregnancy and miscarriage risk. Methods: Self-administered questionnaires were sent to 5289 Swedish hairdressers (response rate 50%) and to 5299 age-matched women from the general Swedish population (response rate 54%). Information was collected on time to pregnancy or trying time for women who had tried, but failed, to conceive at the time of the study. The outcome of the pregnancy was determined and categorized as either miscarriage or stillbirth or live birth. The hairdressers were compared with the referents with respect to these two outcomes. Within the hairdresser cohort, the effects of hair treatments, as well as physical workload and stress were investigated. Results: The hairdressers were less successful than the reference cohort in conceiving (fecundability ratio 0.91, 95% confidence interval 0.83-0.99). The effect was reduced after first-month conceptions were excluded, the indication being that the effect may be the result of birth control bias. Within the hairdresser coh

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Creator/Principal investigator(s):

Anna Axmon - Region Skåne, Occupational and Environmental Medicine

Identifiers:

SND-ID: EXT 0069

Purpose:

To investigate whether working as a hairdresser has a negative impact on female fertility

Description:

The study investigated whether working as a hairdresser has a negative impact on fertility, measured as time to pregnancy and miscarriage risk. Methods: Self-administered questionnaires were sent to 5289 Swedish hairdressers (response rate 50%) and to 5299 age-matched women from the general Swedish population (response rate 54%). Information was collected on time to pregnancy or trying time for women who had tried, but failed, to conceive at the time of the study. The outcome of the pregnancy was determined and categorized as either miscarriage or stillbirth or live birth. The hairdressers were compared with the referents with respect to these two outcomes. Within the hairdresser cohort, the effects of hair treatments, as well as physical workload and stress were investigated. Results: The hairdressers were less successful than the reference cohort in conceiving (fecundability ratio 0.91, 95% confidence interval 0.83-0.99). The effect was reduced after first-month conceptions were excluded, the indication being that the effect may be the result of birth control bias. Within the hairdresser coh

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Time period(s) investigated:

1996 — 2000

Instrument:

Unit of analysis:

Contact person for questions about the data:

Anna Axmon

Is part of collection at SND:

Scania Metadatabase for Epidemiology (SME)

Publications

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Axmon A, Rylander L. No interaction between smoking and working as a hairdresser with respect to reproductive health. J Occup Environ Med. 2009 Apr;51(4):399; author reply 399-400. doi: 10.1097/JOM.0b013e3181a03aa5.

Axmon A, Rylander L, Lillienberg L, Albin M, Hagmar L. Fertility among female hairdressers. Scand J Work Environ Health. 2006 Feb;32(1):51-60.

Axmon A, Rylander L, Albin M, Hagmar L. Factors affecting time to pregnancy. Hum Reprod. 2006 May;21(5):1279-84. Epub 2006 Jan 12.

Axmon A, Hagmar L. Time to pregnancy and pregnancy outcome. Fertil Steril. 2005 Oct;84(4):966-74.

If you have published anything based on these data, please notify us with a reference to your publication(s).

Dataset EXT 0069-001

Fertility among female hairdressers - hairdresser cohort

Data format / data structure:

Numeric

Data collection:

Mode of collection: Self-administered questionnaire: paper

Time period(s) for data collection: 2000 — 2000

Source of the data: Population group

Time period(s) investigated:

2000 — 2000

Number of individuals/objects:

2626

Response rate/participation rate:

50%

Dataset EXT 0069-002

Fertility among female hairdressers - the reference cohort

Data format / data structure:

Numeric

Data collection:

Mode of collection: Self-administered questionnaire: paper

Time period(s) for data collection: 2000 — 2000

Source of the data: Population group

Time period(s) investigated:

2000 — 2000

Number of individuals/objects:

2860

Response rate/participation rate:

54%