Variable Description

Name
pub117
Label
a7 - usual length of childs menstrual cycle
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-9999 Consent withdrawn 0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 3,276
0.00%
-1 Missing 24
0.00%
99 DK 1
100.00%
0.00%
Valid Invalid Min Max Mean
1 6251 99 99 99

Representation

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

Source Questions

A7

13 questions before...

is it probably:

1
3 days or less
2
4-6 days
3
7 days or more

In the past year, what was the usual length of your daughter's menstrual cycle? In other words, how many days were there from the first day of one period to the first day of the next period? ... days

How many
99
don't know

Has your daughter ever had any of the following symptoms associated with her period? Heavy or prolonged bleeding?

1
Yes
2
No
28 questions after...
View the complete questionnaire

Lineage

  • ALSPAC Growing and Changing 1 Dataset - pub117
    a7 - usual length of childs menstrual cycle
    • In the past year, what was the usual length of your daughter's menstrual cycle? In other words, how many days were there from the first day of one period to the first day of the next period? ... days