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mrepo:topics:menopause [22/03/2018 @ 11:38] – external edit 127.0.0.1 | mrepo:topics:menopause [14/11/2023 @ 12:52] (current) – director | ||
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==== Menopause==== | ==== Menopause==== | ||
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+ | Women first reported information about the menopause at age 43, when as part of the [[questionnaires: | ||
- | At [[questionnaires: | + | \\ |
+ | Postal questionnaires were sent out at ages 47, 48, 49, 50, 51, 52, 53, and 54 years, and a total of 1,572 women gave information on at least one of these occasions. Non-responders to the postal questionnaire who were interviewed at the home visit in [[questionnaires: | ||
- | * pre-adolescent: | + | In all, 1,735 women provided information on menopause and hysterectomy |
- | * early puberty: early development of genitalia with at least one other marker | + | |
- | * advanced puberty: advanced development of genitalia but at least one other marker not fully mature | + | |
- | * fully mature: all markers fully mature\\ | + | |
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- | Visibility of pubic hair was also recorded at age 11 years for both boys and girls.\\ | + | |
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- | During medical examinations performed in 1961 when cohort members were aged 14 or 15 years, school doctors established whether the female members of the study had started their periods and if so, the month and year of onset of the first period. If a study member had not reached menarche by the time of the interview this was recorded. In [[questionnaires:1994|1994]] (at age 48 years) women were asked to remember their age (in years) at menarche. | + | === Obtaining |
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+ | * You can obtain | ||
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+ | \\ < | ||
+ | [[http:// | ||
+ | \\ \\ | ||
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- | A set of variables using only information provided in 1961 has been derived. Age at menarche in months since birth and years are available. \\ | ||
- | A second set of age at menarche variables have been created which incorporate information from the women’s health questionnaire in 1994. If women had a valid age at menarche recorded in 1960-1 this is used. However, if women had not reached menarche by 1960-1 and reported an age at menarche in 1994 of > 13y the age of menarche they reported in 1994 is used. Age in months and years is available. This enlarged dataset is the usual one used for analyses. (see Cooper R, et al., [[http:// | ||
- | At age 11 and 15 years, a variable indicating whether there was sign of breast development among girls was recorded.\\ | ||