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Calculate the age and corrected age of prenatal patients
Posted on 2011-03-04
Hi Experts,
I’ve got to calculate the age and corrected age of a selection of prenatal patients from our prenatal department.
The corrected age is the age a child would have if it would have been born after a full pregnancy of 280 day (40 weeks).
What do we know?
We do know the:
• birth date (stored in a nvarchar field) name “geboortedatum” format yyyy-mm-dd
• pregnancy weeks (stored in a nvarchar field) name “Zwangerschapsduur_weken” format example “27”
• pregnancy days (stored in a nvarchar field) name “Zwangerschapsduur_dagen” format example “4”
We need to know (based on the current date):
• The current uncorrected age (based on the birth date) precise by the day.
• The corrected age precise by the day.
• The number of days between the uncorrected and corrected age.
Besides the points you will receive our hospitals gratitude for your contribution to public healthcare in the Netherlands.
I’ve got to calculate the age and corrected age of a selection of prenatal patients from our prenatal department.
The corrected age is the age a child would have if it would have been born after a full pregnancy of 280 day (40 weeks).
What do we know?
We do know the:
• birth date (stored in a nvarchar field) name “geboortedatum” format yyyy-mm-dd
• pregnancy weeks (stored in a nvarchar field) name “Zwangerschapsduur_weken” format example “27”
• pregnancy days (stored in a nvarchar field) name “Zwangerschapsduur_dagen” format example “4”
We need to know (based on the current date):
• The current uncorrected age (based on the birth date) precise by the day.
• The corrected age precise by the day.
• The number of days between the uncorrected and corrected age.
Besides the points you will receive our hospitals gratitude for your contribution to public healthcare in the Netherlands.
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SELECT DATEDIFF(DAY, CONVERT(DATETIME, geboortedatum), GETDATE()) as Days_Old,
geboortedatum AS Uncorrected_Birth_Date,
DATEADD(DAY, (280 - CONVERT(TINYINT, Zwangerschapsduur_weken) * 7 + CONVERT(TINYINT, Zwangerschapsduur_dagen)),
280 - CONVERT(TINYINT, Zwangerschapsduur_weken) * 7 + CONVERT(TINYINT, Zwangerschapsduur_dagen) AS Days_Early
Hi,
I'm going to write some tips for you that might help:
1. to get current uncorrected age [Select datediff(day, birthdate, getdate()) from ...... ]
2. to get the corrected age:
- get the start pregnancy date = birth_date - pregnancy days in sql ' set @birthdate = dateadd(d, birthdate , -1* pregnancy days)'
- get the estimated_birth_date = start_date + 240 day in sql ' set @estbirth_date = dateadd(d, startdate,240)'
- select @corrected_age = getdate()-estbirth_date
3. just subtract the two dates above.
- To get current date "today" use getdate()
- Date time functions help:http://msdn.microsoft.com/en-us/library/ms186724.aspx
I'm going to write some tips for you that might help:
1. to get current uncorrected age [Select datediff(day, birthdate, getdate()) from ...... ]
2. to get the corrected age:
- get the start pregnancy date = birth_date - pregnancy days in sql ' set @birthdate = dateadd(d, birthdate , -1* pregnancy days)'
- get the estimated_birth_date = start_date + 240 day in sql ' set @estbirth_date = dateadd(d, startdate,240)'
- select @corrected_age = getdate()-estbirth_date
3. just subtract the two dates above.
- To get current date "today" use getdate()
- Date time functions help:http://msdn.microsoft.com/en-us/library/ms186724.aspx
Sorry Peter,
I'm used to do only simple select statements and don't understand.
Can you please give a more detaild discription what I should do?
Thanks
I'm used to do only simple select statements and don't understand.
Can you please give a more detaild discription what I should do?
Thanks
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