Description
Divide eventTime minus each supplied origin by positive timeUnitsPerDay.
Age is a difference between an event and a selected origin. Gestational, chronological, corrected, and source-record coordinates can differ even when expressed in the same time unit.
Divide eventTime minus each supplied origin by positive timeUnitsPerDay.
When to use this tool
Use Neonatal Age Origin Gap when you need to compare explicit age origins or recorded time coordinates.
How to use the tool and how it works
- Enter eventTime, birthOrigin, sourceOrigin, timeUnitsPerDay. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read ageFromBirthDays, ageFromSourceDays, originGapDays. Use the output convention below.
Divide eventTime minus each supplied origin by positive timeUnitsPerDay. Return both age bases and sourceOrigin minus birthOrigin on the same day scale.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| eventTime | Event Time | Required. Finite number. |
| birthOrigin | Birth Origin | Required. Finite number. |
| sourceOrigin | Source Origin | Required. Finite number. |
| timeUnitsPerDay | Time Units Per Day | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| ageFromBirthDays | Age From Birth Days | Required. Finite number. |
| ageFromSourceDays | Age From Source Days | Required. Finite number. |
| originGapDays | Origin Gap Days | Required. Finite number. |
{
"input": {
"eventTime": 72,
"birthOrigin": 0,
"sourceOrigin": 24,
"timeUnitsPerDay": 24
},
"output": {
"ageFromBirthDays": 3,
"ageFromSourceDays": 2,
"originGapDays": 1
}
}Limitations and assumptions
- No epoch, timezone, or preferred clinical age origin is inferred; signed differences are allowed.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Keep the original timestamps and age definitions, and confirm the intended convention with the relevant clinical or research protocol.
References
Similar or alternative tools
- Neonatal Age Hour Precision Token
Subtract its upper bound for ageHoursLower and its lower bound for ageHoursUpper.
- Neonatal Record Postmenstrual Age Anchor
Add nonnegative integer gestationAtBirthDays and chronologicalAgeDays.