Table 13D
2011 Pregnancy Nutrition Surveillance (1)
Nation
Maternal Weight Gain and Birth Outcomes by Select Health Indicators


Maternal Weight Gain and Birth Outcomes by Select Health Indicators (2)
Weight Gain (3)
Prepregnancy BMI

Number Included
in Analysis

< Ideal
%

> Ideal
%

Underweight 30,633 32.0

25.2

Normal Weight 302,752 25.1

38.4

Overweight 188,765 13.1

59.2

Obese 195,949 20.7

55.8

Birthweight
Prepregnancy BMI

Number Included
in Analysis

Low (4)
%

High (5)
%

Underweight 33,638 12.8 2.2
Normal Weight 328,992 8.1 4.8
Overweight 206,501 7.0 7.4
Obese 218,485 7.3 10.1

Preterm (6)
Prepregnancy BMI

Number Included
in Analysis

%

Underweight 35,264 12.3
Normal Weight 337,638 10.2
Overweight 210,960 10.2
Obese 221,722 11.1

Full Term LBW (7)
Prepregnancy BMI

Number Included
in Analysis

%

Underweight 28,677 6.6
Normal Weight 288,584 3.7
Overweight 181,237 2.8
Obese 189,831 2.7

Maternal Weight Gain and Birth Outcomes by Select Health Indicators (2)
Weight Gain (3)
Weight Gain

Number Included
in Analysis

< Ideal
%

> Ideal
%

< Ideal * *

*

Ideal * *

*

> Ideal * *

*

Birthweight
Weight Gain

Number Included
in Analysis

Low (4)
%

High (5)
%

< Ideal 148,344 12.7 3.4
Ideal 218,369 7.6 4.9
> Ideal 337,996 5.4 9.8

Preterm (6)
Weight Gain

Number Included
in Analysis

%

< Ideal 147,165 14.0
Ideal 216,459 10.1
> Ideal 334,947 8.5

Full Term LBW (7)
Weight Gain

Number Included
in Analysis

%

< Ideal 124,836 5.5
Ideal 192,291 3.4
> Ideal 302,381 2.2

Maternal Weight Gain and Birth Outcomes by Select Health Indicators (2)
Weight Gain (3)
Smoking During Pregnancy

Number Included
in Analysis

< Ideal
%

> Ideal
%

Smokers 77,886 22.0

49.2

Non-Smokers 527,944 20.5

48.1

Birthweight
Smoking During Pregnancy

Number Included
in Analysis

Low (4)
%

High (5)
%

Smokers 81,869 10.9 4.3
Non-Smokers 573,930 6.7 7.4

Preterm (6)
Smoking During Pregnancy

Number Included
in Analysis

%

Smokers 83,028 11.3
Non-Smokers 595,954 10.1

Full Term LBW (7)
Smoking During Pregnancy

Number Included
in Analysis

%

Smokers 72,022 5.6
Non-Smokers 513,626 2.7
(1) Reporting period is January 1 through December 31.
(2) Excludes records with unknown data or errors.
(3) Based on 2009 IOM report, "Weight Gain During Pregnancy": underweight during pregnancy (ideal weight gain = 28 to 40 pounds), normal weight prepregnancy
 (ideal weight gain = 25 to 35 pounds), overweight prepregnancy (ideal weight gain = 15 to 25 pounds), obese prepregnancy (ideal weight gain = 11 to 20 pounds).
(4) <2500 g.
(5) >4000 g.
(6) <37 weeks gestation.
(7) 37 or more weeks gestation and <2500 g.
* Percentages are not calculated if <100 records are available for analysis after exclusions.