Age (groups)

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Age (groups)

Description

This phenotype determines the age group for a given case. These standard development age groups are used to enhance the reliability/relevance of pediatric clinical research and are defined by the National Institute of Child Health and Human Development (NICHD).

Reference: https://pediatrics.aappublications.org/content/129/Supplement_3/S153/tab-figures-data

Limitation

Maximum returned age is 90 as defined by PHI regulations.

Data quality is limited to individual site documentation accuracy, completeness, and variable mapping, which is performed by each site, independently. MPOG, as the coordinating center, reviews data quality at each data upload and monthly via Data Diagnostics and Case Validation tools. This review, while thorough, may not contain all data elements relevant to this phenotype and thus should be carefully reviewed by the user.

Value Type

Categorical

Enumeration

Value	Value Code	Definition

Return Columns

Column Name	Data Type

Granularity

Logic

This phenotype categorizes patients into age groups as defined by the National Institute of Child Health and Human Development (NICHD). To determine if the case/patient was pre-term the following logic is applied:
- Check #1: Age < 28 days? If Yes, then
- Check #2: ICD 10 code P07.3 or P07.2 . If yes, then assign value Preterm Neonate. If no then,
- Check #3: MPOG Concept 71041 (General - Past Medical History ICD-10 Code) matched on text %premature% or %preterm%. If yes, then assign value Preterm Neonate. If no then,
- Assign Term Neonate

Age in Years	Months	Weeks	Classification
0	0	0	Neonate
0.01923	0.2	1	Neonate
0.038461	0.5	2	Neonate
0.057692	0.7	3	Neonate
0.076923	0.9	4	Infant
0.083333	1	4.3	Infant
0.166666	2	8.7	Infant
0.25	3	13	Infant
0.333333	4	17.3	Infant
0.416666	5	21.7	Infant
0.5	6	26	Infant
0.583333	7	30.3	Infant
0.666666	8	34.7	Infant
0.75	9	39	Infant
0.833333	10	43.3	Infant
0.916666	11	47.7	Infant
1	12	52	Infant
1.083333	13	56.3	Toddler
1.166666	14	60.7	Toddler
1.25	15	65	Toddler
1.333333	16	69.3	Toddler
1.416666	17	73.7	Toddler
1.5	18	78	Toddler
1.583333	19	82.3	Toddler
1.666666	20	86.7	Toddler
1.75	21	91	Toddler
1.833333	22	95.3	Toddler
1.916666	23	99.7	Toddler
2	24	104	Child (Early)
3	36	156	Child (Early)
4	48	208	Child (Early)
5	60	260	Child (Early)
6	72	312	Child (Middle)
7	84	364	Child (Middle)
8	96	416	Child (Middle)
9	108	468	Child (Middle)
10	120	520	Child (Middle)
11	132	572	Child (Middle)
12	144	624	Adolescent (Early)
13	156	676	Adolescent (Early)
14	168	728	Adolescent (Early)
15	180	780	Adolescent (Early)
16	192	832	Adolescent (Early)
17	204	884	Adolescent (Early)
18	216	936	Adolescent (Early)
19	228	988	Adolescent (Late)
20	240	1040	Adolescent (Late)
21	252	1092	Adolescent (Late)
22	264	1144	Adult