Variable Description

Name
pub112
Label
Child's age in months at time of first period
Dataset
Value Label Frequency % of valid % of all
-9999 Consent withdrawn 0
0.00%
-10 Child is male 2,951
0.00%
-9 Error check 0
0.00%
-8 Text response 0
0.00%
-7 Missing due to printing error 0
0.00%
-2 Not started periods 3,298
0.00%
-1 Missing 2
0.00%
Valid Invalid Min Max Mean
1 6251 96 96 96

Representation

Type
Code List
Selection Style
SelectOne
Codes
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

A5

10 questions before...

How old was your daughter when she had her first period? ... years old

Age

When was her first period ?

Generic date

In the past year, how many days of bleeding has your daughter usually had during each of her periods? ... days

How many
99
don't know
31 questions after...
View the complete questionnaire

Lineage

  • ALSPAC Growing and Changing 1 Dataset - pub112
    Child's age in months at time of first period
    • When was her first period ?