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Health Commissioner’s Workgroupon Infant Mortality Data
Delivery Method Analysis
Gestational Age at Birth Analysis
Delivery Analysis
• Data Source- Virginia Health Information (VHI) database
• VHI- 1993 with passage of the Patient Level Database System Act
• All Payor claims database
Source: VHI Hospital Discharge Data
Source: VHI Hospital Discharge Data
Source: VHI Hospital Discharge Data
Source: VHI Hospital Discharge Data and the Virginia Department of Health Division of Health Statistics compiled by the Office of Family Health Services, Division of Women's and Infants' Health, 1998-2007.
Source: VHI hospital discharge data.
Region% of live births
Northern 37.8
Central 35.8
Northwest 33.9
Eastern 32.6
Southwest 31.5
VIRGINIA 35.0
Cesareans by Region in Virginia, 2007
Source: VHI Hospital Discharge Data
0
10
20
30
40
50
60
HOSPITALSVIRGINIA
Variation in % Cesarean Births by Hospital* Virginia, 2007
Source: VHI Hospital Discharge Data
* For hospitals with > 100 total deliveries (Vaginal + Cesarean)
Gestational Age Analysis
• The data on birth and gestational age are collected through the Vital Records Data Base.
• These data are collected under the Code of Virginia regulations governing reporting of vital events, which are compiled, aggregated and reported on by VDH’s Division of Health Statistics.
• The gestational age is collected by the physician or other delegated professional at the bedside during the birth process.
Length of Gestation
The length of gestation variable is collected by the Office of Vital Records from the Certificate of Live Birth. Length of Gestation and other birth variables are entered into the Vital Records data base and subsequently compiled and analyzed by the Division of Health Statistics.
Resident Total Preterm Births By Length of Gestation Virginia, 1999-2007
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
1999 2000 2001 2002 2003 2004 2005 2006 2007
Year
To
tal B
irth
s 33-36
29-32
24-28
UND23
Resident Total Preterm Births By Length of GestationBy Percent of Total Births
Virginia, 1999-2007
0
1
2
3
4
5
6
7
8
9
10
1999 2000 2001 2002 2003 2004 2005 2006 2007
Year
Per
cen
tag
e o
f T
ota
l Bir
ths
33-36
29-32
24-28
UND23
Resident Total Infant Death Rate By Length of Gestation
Virginia, 1999-2007
0
100
200
300
400
500
600
700
800
900
1000
1999 2000 2001 2002 2003 2004 2005 2006 2007
Year
Rat
e P
er 1
,000
UND23
37+
24-28
33-36
29-32
