Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Percentage of Infants With Major Birth Defects in Pregnancies Ending With Live-born Infants |
A major structural defect is defined as a defect which has either cosmetic or functional significance to the child (e.g., a cleft lip). The Registry used the Metropolitan Atlanta Congenital Defects Program (MACDP) birth defect classification system, with some specified modifications that are appropriate for cohort studies as opposed to case-control studies. |
From birth through 1 year of age |
|
Primary |
Percentage of Infants With Major Birth Defects in All Pregnancies |
A major structural defect is defined as a defect which has either cosmetic or functional significance to the child (e.g., a cleft lip). The Registry used the Metropolitan Atlanta Congenital Defects Program (MACDP) birth defect classification system, with some specified modifications that are appropriate for cohort studies as opposed to case-control studies. |
From birth through 1 year of age |
|
Secondary |
Percentage of Infants With Any 3 or More Minor Birth Defects |
A minor structural defect is defined as a defect which occurs in less than 4 percent of the population but which has neither cosmetic nor functional significance to the child (e.g., complete 2,3 syndactyly of the toes). The Registry used the Metropolitan Atlanta Congenital Defects Program (MACDP) birth defect classification system, with some specified modifications that are appropriate for cohort studies as opposed to case-control studies. |
From birth through 1 year of age |
|
Secondary |
Percentage of Infants With a Specific Pattern of Any 3 or More Minor Birth Defects |
A minor structural defect is defined as a defect which occurs in less than 4 percent of the population but which has neither cosmetic nor functional significance to the child (e.g., complete 2,3 syndactyly of the toes). A pattern is defined as at least the same 3 specific minor malformations occurring in at least two infants in the exposed group. |
From birth through 1 year of age |
|
Secondary |
Percentage of Pregnancies Ending in Spontaneous Abortion |
Computed using Kaplan-Meier estimate at 20 weeks gestation, accounting for left truncation due to varying time in gestation at enrollment. In multiple pregnancies ending in at least 1 live-born infant, the live birth outcome is included in the analysis. In multiples ending in no live birth outcomes, the spontaneous abortion is counted as 1 event. |
9 months |
|
Secondary |
Percentage of Participants With Pre-term Delivery |
A pretem delivery is defined as prior to 37 weeks gestation. Computed using Kaplan-Meier estimate at 37 weeks' gestation, accounting for left truncation due to varying time in gestation at enrollment. Multiple births are excluded. |
9 months |
|
Secondary |
Gestational Age at Delivery (GAD) of Live Births |
|
At birth |
|
Secondary |
Birth Weight Among Full Term Infants |
|
At birth |
|
Secondary |
Birth Length Among Full Term Infants |
|
At birth |
|
Secondary |
Birth Head Circumference Among Full Term Infants |
|
At birth |
|
Secondary |
Percentage of Infants With Small for Gestational Age Birth Weight |
Small for gestational age is defined as = 10th percentile for sex and gestational age using National Center for Health Statistics (NCHS) / Center for Disease Control (CDC) growth curves. |
At birth |
|
Secondary |
Percentage of Infants With Small for Gestational Age Birth Length |
Small for gestational age is defined as = 10th percentile for sex and gestational age using National Center for Health Statistics (NCHS) / Center for Disease Control (CDC) growth curves. |
At birth |
|
Secondary |
Percentage of Infants With Small for Gestational Age Birth Head Circumference |
Small for gestational age is defined as = 10th percentile for sex and gestational age using National Center for Health Statistics (NCHS) / Center for Disease Control (CDC) growth curves. |
At birth |
|
Secondary |
Postnatal Weight Percentile at One Year |
|
1 year after birth |
|
Secondary |
Postnatal Length Percentile at One Year |
|
1 year after birth |
|
Secondary |
Postnatal Head Circumference Percentile at One Year |
|
1 year after birth |
|
Secondary |
Percentage of Infants at One Year of Age With Small for Gestational Age Weight |
Postnatal growth deficiency defined as = 10th centile for chronological age. Age adjusted for gestational age at delivery if child was less than 12 months of age at postnatal measurement, unadjusted if = 12 months of age at postnatal measurement. |
1 year after birth |
|
Secondary |
Percentage of Infants at One Year of Age With Small for Gestational Age Length |
Postnatal growth deficiency defined as = 10th centile for chronological age. Age adjusted for gestational age at delivery if child was less than 12 months of age at postnatal measurement, unadjusted if = 12 months of age at postnatal measurement. |
1 year after birth |
|
Secondary |
Percentage of Infants at One Year of Age With Small for Gestational Age Head Circumference |
Postnatal growth deficiency defined as = 10th centile for chronological age. Age adjusted for gestational age at delivery if child was less than 12 months of age at postnatal measurement, unadjusted if = 12 months of age at postnatal measurement. |
1 year after birth |
|
Secondary |
Percentage of Infants With Reported Serious or Opportunistic Infections Through One Year |
|
From birth to 1 year |
|
Secondary |
Percentage of Infants Diagnosed With Any Malignancy Through One Year of Age |
|
From birth to 1 year |
|
Secondary |
Percentage of Infants With Abnormal Results on Ages and Stages Questionnaire (ASQ) |
The ASQ-3 evaluates 5 domains of development: communication, gross motor, fine motor, problem solving, and personal-social. Each domain has a set of 6 items and parents rate the most appropriate answer for the presence of each skill: "Yes," "Sometimes," "Not Yet," with point values of 10, 5, or 0, respectively. Each domain question set is totaled independently and compared against statistically derived cutoffs that are set at 2 standard deviations below the mean. The percentage of infants below the cut-off or close to the cutoff (borderline) is reported. |
1 year after birth |
|