Table 11
Number of Infant Deaths, Live Births and Infant Death Rates
by Selected Characteristics of Newborn and of Mother
for Michigan Residents, 2017
(Continued)


Characteristics of Newborn Infant
Deaths
Live
Births
Infant Death
Rate
Sex of Infant 762 111,507 6.8  ±0.5
  Male 427 56,906 7.5  ±0.7
  Female 332 54,560 6.1  ±0.7
Birthweight 762 111,507 6.8  ±0.5
  1,499 Grams or Less 416 1,687 246.6  ±20.9
  1,500 - 2,499 Grams 109 8,158 13.4  ±2.5
  2,500 Grams or More 235 101,599 2.3  ±0.3
Plurality 762 111,507 6.8  ±0.5
  Single Birth 639 107,166 6.0  ±0.5
  Multiple Birth 122 4,302 28.4  ±5.0
Characteristics of Mother Infant
Deaths
Live
Births
Infant Death
Rate
Age of Mother 762 111,507 6.8  ±0.5
  < 20 48 5,363 9.0  ±2.5
  20 - 29 424 58,631 7.2  ±0.7
  30 - 39 268 44,575 6.0  ±0.7
  40 + 20 2,897 6.9  ±3.0
Marital Status 762 111,507 6.8  ±0.5
  Married 310 65,288 4.7  ±0.5
  Unmarried 451 46,180 9.8  ±0.9
Level of Prenatal Care 762 111,507 6.8  ±0.5
  Adequate 390 75,429 5.2  ±0.5
  Intermediate 201 25,515 7.9  ±1.1
  Inadequate 169 10,509 16.1  ±2.4
Exposure to Tobacco Infant
Deaths
Live
Births
Infant Death
Rate
Smoked During Pregnancy 762 111,507 6.8  ±0.5
  No 606 95,416 6.4  ±0.5
  Yes 156 16,052 9.7  ±1.5
Secondhand Smoke During Pregnancy 762 111,507 6.8  ±0.5
  No 581 94,275 6.2  ±0.5
  Yes 114 13,448 8.5  ±1.5
Smoked or Secondhand Smoke During Pregnancy 762 111,507 6.8  ±0.5
  No 508 86,827 5.9  ±0.5
  Yes 196 21,535 9.1  ±1.3
History of smoking 762 111,507 6.8  ±0.5
  No 560 91,262 6.1  ±0.5
  Yes 174 19,716 8.8  ±1.3


Note: Rates are per 1,000 live births. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95 % statistical confidence. Records with selected characteristics unknown are included in total only.  Level of prenatal care is according to the Kessner Index which is a classification of prenatal care based on the month of pregnancy in which prenatal care began, the number of prenatal visits and the length of pregnancy (i.e. for shorter pregnancies, fewer prenatal visits constitute adequate care.)
Source: 2017 Michigan Resident Birth-Death Matched File, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services