Mothering › Forums › Archives › Pregnancy Archives › June 2008 › Birthweight calculator....
New Posts  All Forums:Forum Nav:

Birthweight calculator....  

post #1 of 91
Thread Starter 
Hey mamas!

When I was pregnant w/Audrey, on another forum a woman posted a excel spreadsheet that had a bunch of formulas embedded in it that functioned as a birthweight calculator. Her husband was a statistician and he had assembled it using formulas derived from some OB/GYN papers that were exploring the connections btwn maternal nutrition and birthweight.

I've used it to calculate several pregnancies (all of mine and a few of my IRL friends) and it's been accurate w/n about 7 oz for everyone I've run it on. But, it's been a really small sample and I've always been curious as to how accurate it really is.

So, I thought it might be fun to make some predictions and check the actual stats against the calculator.

If you're interested, I need the following info to run the program. (If you want a copy of the file, PM me your email addy and I'll forward it to you!)

Height:
Weight at 26 weeks:
Weight at delivery (or current weight):
Due Date:
Delivery Date (if you haven't delivered, I'll just plug in today's date):
Number of previous births:


I'll post the results to the thread and keep an updated list comparing predictions to actual in the first post....

This is intended just to be for fun!! We all know that our bodies grow babes differently and perfectly for us!

Results: Estimate, Actual, Discrepancy

Kylahroo E: 8.84 lbs A: 9.94 lbs D: -1.1 lb
MamaJava E: 9.13 lbs A: 7.63 lbs D: +1.5 lb
BirthFree E: 8.06 A: 9.06 lbs D: -1.0 lb
post #2 of 91
Height: 5'10
Weight at 26 weeks: 206
Weight at delivery (or current weight):210
Due Date:6/30/08
Delivery Date: have not delivered
Number of previous births:2
post #3 of 91
Oooh, fun! I love stuff like this. I'll have to dig up my weight from my 26 week check-up when I get home from work. (Hopefully, I wrote that one down in my pregnancy journal.)
post #4 of 91
Thread Starter 
Quote:
Originally Posted by RainRaven View Post
Height: 5'10
Weight at 26 weeks: 206
Weight at delivery (or current weight):210
Due Date:6/30/08
Delivery Date: have not delivered
Number of previous births:2
If delivered today: 8.13 lbs
post #5 of 91
I love this kind of thing!

Height: 5'6"
Weight at 26 weeks: 147
Weight at delivery (or current weight): 161
Due Date: 6/11
Delivery Date (if you haven't delivered, I'll just plug in today's date): soon, i hope!!
Number of previous births: 0

Thanks!!
post #6 of 91
Thread Starter 
Quote:
Originally Posted by saffrondaisy View Post
I love this kind of thing!

Height: 5'6"
Weight at 26 weeks: 147
Weight at delivery (or current weight): 161
Due Date: 6/11
Delivery Date (if you haven't delivered, I'll just plug in today's date): soon, i hope!!
Number of previous births: 0

Thanks!!
If delivered today: 7.90 lbs
post #7 of 91
Ok try me...

Height: 5'10"
Weight at 26 weeks: 154
Weight at delivery (or current weight): 169
Due Date: 6/12/08
Delivery Date (if you haven't delivered, I'll just plug in today's date): [that would be nice, but baby is not coming today ]
Number of previous births: 1
post #8 of 91
oh fun!

Height: 5'6
Weight at 26 weeks: 170
Weight at delivery (or current weight):180
Due Date: 6/21
Delivery Date (if you haven't delivered, I'll just plug in today's date):
Number of previous births: 1
post #9 of 91
Quote:
Height:
Weight at 26 weeks:
Weight at delivery (or current weight):
Due Date:
Delivery Date (if you haven't delivered, I'll just plug in today's date):
Number of previous births:
Can I please play too???

I'm due in July
Height: 5'4"
Weight at 26 weeks:156
Weight at delivery (or current weight):163
Due Date:July 31st
Delivery Date (if you haven't delivered, I'll just plug in today's date) Delivering 07/18/2008
Number of previous births:4
post #10 of 91
This is neat! I'm only 24 weeks though so if you're not busy in a few weeks...
post #11 of 91
Crashing your DDC from July too - sorry but this looks fun!
Height: 5'6
Weight at 26 weeks: 180
Weight at delivery (or current weight): 193
Due Date: July 30
Delivery Date (if you haven't delivered, I'll just plug in today's date): not yet!
Number of previous births: 2
post #12 of 91
Thread Starter 
Quote:
Originally Posted by kltroy View Post
Ok try me...

Height: 5'10"
Weight at 26 weeks: 154
Weight at delivery (or current weight): 169
Due Date: 6/12/08
Delivery Date (if you haven't delivered, I'll just plug in today's date): [that would be nice, but baby is not coming today ]
Number of previous births: 1
If delivered today: 8.27 lbs
post #13 of 91
Thread Starter 
Quote:
Originally Posted by Ooey View Post
oh fun!

Height: 5'6
Weight at 26 weeks: 170
Weight at delivery (or current weight):180
Due Date: 6/21
Delivery Date (if you haven't delivered, I'll just plug in today's date):
Number of previous births: 1
If delivered today: 7.97 lbs
post #14 of 91
Quote:
Originally Posted by BlueMoonBean View Post
If delivered today: 8.27 lbs
Wow... and my official guess was going to be 8 lbs 5 oz - I'll let you all know how it works out
post #15 of 91
I'll play! Here's my stats:

Quote:
Originally Posted by BlueMoonBean View Post
Height: 5'5"
Weight at 26 weeks: 147
Weight at delivery (or current weight): 162
Due Date: 6/22
Delivery Date (if you haven't delivered, I'll just plug in today's date): n/a
Number of previous births: 2

post #16 of 91
Thread Starter 
Quote:
Originally Posted by Tenk View Post
Can I please play too???

I'm due in July
Height: 5'4"
Weight at 26 weeks:156
Weight at delivery (or current weight):163
Due Date:July 31st
Delivery Date (if you haven't delivered, I'll just plug in today's date) Delivering 07/18/2008
Number of previous births:4
I can only run the program for up to today's date or for a projected date WITH a projected total weight gain (the formula is largely based on maternal weight gain over time).

So, if your weight gain is through today, then if you delivered today: 7.19 lbs
post #17 of 91
Thread Starter 
Quote:
Originally Posted by Changed View Post
This is neat! I'm only 24 weeks though so if you're not busy in a few weeks...
If you want, you can PM me your email address and I'll email you the program. Then you could run a similar thread for your DDC! I have a funny feeling that I'm going to be kinda busy over the next couple months!
post #18 of 91
Wow, that's amazing!!! I totally appreciate the effort, and offer, sorry for crashing your DDC. Thanks again!!!
post #19 of 91
Ohh me too!

Height: 5'7"
Weight at 26 weeks:146
Weight at delivery (or current weight):152
Due Date:August 25th
Delivery Date (if you haven't delivered, I'll just plug in today's date) Today's date is June 17th
Number of previous births:0

Fun fun!
ETA: Doh! I'm sooo not in this DDC.. Sorry, came here from the New Posts Page and didn't see it... *shame shame*
post #20 of 91
Thread Starter 
Quote:
Originally Posted by HulaJenn View Post
Crashing your DDC from July too - sorry but this looks fun!
Height: 5'6
Weight at 26 weeks: 180
Weight at delivery (or current weight): 193
Due Date: July 30
Delivery Date (if you haven't delivered, I'll just plug in today's date): not yet!
Number of previous births: 2
If delivered today: 7.55 lbs
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: June 2008
This thread is locked  
Mothering › Forums › Archives › Pregnancy Archives › June 2008 › Birthweight calculator....