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Infant MortalityLinked Birth-Infant Death Data
Set
Tulsa County, Oklahoma1991-2000
Preliminary Findings
Carol Kuplicki, MPHCommunity Service Council of Greater
TulsaApril, 2004
Data Source
Linked Birth-Infant Death Certificates
Oklahoma State Department of Health
Tulsa City-County Health Department
Criteria for Inclusion in this Study
Infants – Live births to less than 1 year old
Tulsa County Residents – at birth and death
Born in Tulsa County Died in Tulsa County Infant deaths from 1991 through
2000
Number of Infant Deaths
5158
71
62
57 5749 51 53
67
0
10
20
30
40
50
60
70
80
Nu
mb
er
of
Infa
nt
De
ath
s
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Year of Death
Number of Infant Deaths Linked Birth/Infant Death Data Set
Tulsa County, 1991-2000 N=576
Infant Deaths by Cause
ICD-9 Cause of Death798 Sudden death, cause unknown765 Disorders relating to short gestation and unspecified
LBW779 Other and ill-defined conditions originating in the
perinatal period
746 Other congenital anomalies of heart770 Other respiratory conditions of fetus and newborn771 Infections specific to the perinatal period
799 Other ill-defined and unknown causes of morbidity and mortality
748 Congenital anomalies of respiratory system758 Chromosomal anomalies
753 Congenital anomalies of urinary system
762 Fetus/newborn affected by other complications of placenta, cord, membranes
All Other Causes
TOTAL DEATHS
Number of
Deaths786756
292927
262515
1414
196576
Percent of
Deaths13.5%11.6%
9.7%
5.0%5.0%4.7%
4.5%4.3%2.6%
2.4%2.4%
34.0%100%
Infant Deaths by Cause
ICD-9 Cause of Death Congenital Anomalies746 Other congenital anomalies of heart748 Congenital anomalies of respiratory system758 Chromosomal anomalies753 Congenital anomalies of urinary system
798 Sudden death, cause unknown765 Disorders relating to short gestation and unspecified
LBW779 Other and ill-defined conditions originating in the
perinatal period
770 Other respiratory conditions of fetus and newborn771 Infections specific to the perinatal period
799 Other ill-defined and unknown causes of morbidity and mortality
762 Fetus/newborn affected by other complications of placenta, cord,
membranes
All Other Causes
TOTAL DEATHS
Number of
Deaths8329251514
78675629272614
196576
Percent of
Deaths
14.0%5.0%4.3%2.6%2.4%
13.5%11.6%
9.7%5.0%4.7%4.5%2.4%
34.0%100%
Gender of InfantsGender of Infants
Linked Birth/Infant Death Data SetTulsa County, 1991-2000
N=576
Male313 (54.3%) Female
263 (45.7%)
Infant Deaths by Race
Infant Deaths by Race Linked Birth/Infant Death Data Set
Tulsa County, 1991- 2000 N=576
White 381( 66%)
Black 164 (29%)
Native American 23 (4%)
Other 8 (1%)
Neonatal and Post Neonatal Deaths
Number of Neonatal and Post Neonatal Deaths Linked Birth/Infant Death Data Set
Tulsa County, 1991-2000N=576
200
376
0
50
100
150
200
250
300
350
400
Post Neonatal Deaths Neonatal
Nu
mb
er
of
De
ath
s
Neonatal and Post Neonatal Deaths
Number of Neonatal and Post Neonatal DeathsLinked Birth/Infant Death Data Set
Tulsa County, 1991-2000
Post Neonatal200 (34.7%)28-364 Days
Post Neonatal200 (34.7%)
Neonatal376 (65.3%)
<28 Days
1 Day to <28 Days160 (27.8%)
1 Hr. to <1Day143 (24.8%)
< 1 Hour 73 (12.7%)
0
100
200
300
400
500
600
Infant Deaths
Num
ber o
f Inf
ant D
eath
s
Infant Deaths by Birth Weight
Birth Weight Linked Birth/Infant Deaths Tulsa County, 1991-2000
N=570
<1,500 gram s286 (50.2%)
1,500-2,499 gram s84 (14.7%)
2,500-3,999 gram s182 (31.9%)
4,000+ gram s18 (3.2%)
Infant Deaths by Birth Weight & Year of Death
Birth Weight by YearLinked Birth/Infant DeathsTulsa County 1991-2000
0
5
10
15
20
25
30
35
40
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Year of Death
Num
ber
of In
fant
Dea
ths
<1500 grams
1500-2499 grams
2500-3999 grams
4000+ grams
27
5
18
<5
28
6
19
<5
35
7
25
<5
27
8
22
<5
31
10
15
<5
31
10
14
<5
29
6
12
<5
23
9
18
<5
26
5
20
<5
29
18
19
<5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Per
cent
of D
eath
s
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Year of Death
Birth Weight by YearLinked Birth/Infant Deaths
Tulsa County 1991-2000
<1500 grams 1500-2499 grams 2500-3999 grams 4000+ grams
Infant Deaths by Gestational Age
Infant Deaths by Gestational AgeLinked Birth/Infant DeathTulsa County 1991-2000
N=557
145 (26.0%)
218 (39.1%)
176 (31.6)%
18 (3.2%)
0
50
100
150
200
250
<24 24-36 37-40 >40
Gestational Age (Weeks)
Nu
mb
er
of
De
ath
s
Infant Deaths by Gestational AgeLinked Birth/Infant Death Data Set
Tulsa County 1991-2000N=557
0
5
10
15
20
25
30
35
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Year of Death
Num
ber
of D
eath
s
<24 weeks 24-36 weeks 37-40 weeks >40 weeks
Infant Deaths by Age of Mother
Infant Deaths by Age of MotherBirth/Infant Death Data Set
Tulsa County 1991-2000N=575
107
179
116106
56
7<50
20
40
60
80
100
120
140
160
180
200
<15 15-19 20-24 25-29 30-34 35-39 40+
Age of Mother
Nu
mb
er
of
Infa
nt
De
ath
s
Infant Deaths by Pregnancy Weight Gain
Weight Gained During Pregnancy Birth/Infant Death Data Set
Tulsa County 1991-2000 N=528
85
138 135
104
45
10 83
0
20
40
60
80
100
120
140
160
0-9 10-19 20-29 30-39 40-49 50-59 60-69 70+
Weight Gained in Pounds
Nu
mb
er
of
Infa
nt
De
ath
s