The data is called days_365.
A subset of measurements from the three studies.
The source of this data is < https://github.com/stefvanbuuren/brokenstick, https://github.com/hafen/hbgd, and https://clinepidb.org/ce/app/record/dataset/DS_5c41b87221 >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | character | unique identifyer of each child |
| sex | character | Male or Female |
| htcm | numeric | Height in cm |
| wtkg | numeric | Weight measurement in kg (0.8-20.5) |
| haz | numeric | Height for age in SDS relative to WHO child growth standard |
| waz | numeric | Weight for age in SDS relative to WHO child growth standard |
| country | character | Label for the varied countries |
The data is called childhealth_dutch.
Longitudinal height and weight measurements during ages 0-2 years for a representative sample of 1,933 Dutch children born in 1988-1989.
The source of this data is < https://github.com/stefvanbuuren/brokenstick >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | numeric | unique identifyer of each child |
| sex | character | Male or Female |
| agedays | numeric | Age in days |
| gagebrth | numeric | Gestational age at birth (days) |
| htcm | numeric | Length/height in cm (34-102) |
| wtkg | numeric | Weight measurement in kg (0.8-20.5) |
| haz | numeric | Height in SDS relative to WHO child growth standard |
| waz | numeric | Weight in SDS relative to WHO child growth standard |
The data is called childhealth_us.
Subset of growth data from the collaborative perinatal project (CPP).
The source of this data is < https://github.com/hafen/hbgd >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | integer | unique identifyer of each child |
| sex | character | Male or Female |
| agedays | integer | Age in days |
| gagebrth | numeric | Gestational age at birth (days) |
| htcm | integer | Length/height in cm (34-102) |
| wtkg | numeric | Weight measurement in kg (0.8-20.5) |
| haz | numeric | Height in SDS relative to WHO child growth standard |
| waz | numeric | Weight in SDS relative to WHO child growth standard |
| mrace | character | Race of the mother |
| mage | integer | Mother age at child birth |
| meducyrs | integer | Educational years of mother |
| ses | character | Socioeconomic status of mother |
The data is called childhealth_maled.
Subset of growth data from the Malnutrition and Enteric Disease Study (MAL-ED).
The source of this data is < https://www.fic.nih.gov/About/Staff/Pages/mal-ed.aspx and https://clinepidb.org/ce/app/record/dataset/DS_5c41b87221 >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | character | unique identifyer of each child |
| sex | character | Male or Female |
| country | character | Label for the varied countries |
| agedays | numeric | Age in days |
| wtkg | numeric | Weight measurement in kg (0.8-20.5) |
| stcm | numeric | Stature either Length or height in cm |
| htcm | numeric | Height in cm |
| lncm | numeric | Length in cm |
| lh_used | character | Lenght or Height used for stature |
| hccm | numeric | Head Circumference in cm |
| lhaz | numeric | Length or Height for age in SDS relative to WHO child growth standard |
| haz | numeric | Height for age in SDS relative to WHO child growth standard |
| laz | numeric | Length for age in SDS relative to WHO child growth standard |
| waz | numeric | Weight for age in SDS relative to WHO child growth standard |
| hcaz | numeric | Head cirumference for age in SDS relative to WHO child growth standard |
| whz | numeric | Weight for height or lenght in SDS relative to WHO child growth standard |
The data is called birth_us.
Subset of growth data from the collaborative perinatal project (CPP).
The source of this data is < https://github.com/hafen/hbgd >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | integer | unique identifyer of each child |
| sex | character | Male or Female |
| birthwt | integer | Birthweight of the child |
| birthlen | integer | Birth length of the child |
| apgar1 | integer | a quick test performed on a baby at 1 minute after birth. https://medlineplus.gov/ency/article/003402.htm |
| apgar5 | integer | a quick test performed on a baby at 5 minutes after birth. https://medlineplus.gov/ency/article/003402.htm |
| mrace | character | Race of the mother |
| mage | integer | Mother age at child birth |
| smoked | integer | If the mother smoked (1) or didn't smoke (0) |
| meducyrs | integer | Educational years of mother |
| ses | character | Socioeconomic status of mother |
The data is called birth_dutch.
Measurements during ages 0-2 years for a representative sample of 1,933 Dutch children born in 1988-1989
The source of this data is < https://github.com/stefvanbuuren/brokenstick >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | numeric | unique identifyer of each child |
| sex | character | Male or Female |
| birthwt | numeric | Birthweight of the child |
The data is called weight_coef.
See https://www.cdc.gov/nchs/data/nhsr/nhsr063.pdf for a desciption on how calculations are made. However, the CDC has different coefficients.
The source of this data is < https://github.com/hafen/growthstandards >
A data frame with columns:
| variable | class | description |
|---|---|---|
| agedays | numeric | Age of child in days |
| sex | character | The gender of the child |
| mean | numeric | The mean for a child at agedays |
| sd | numeric | The standard deviation of weights for children at agedays |
| cv | numeric | The coefficient of variation for children at agedays - https://en.wikipedia.org/wiki/Coefficient_of_variation |
| l | numeric | The box-cox tranformation for children at agedays - https://www.cdc.gov/nchs/data/nhsr/nhsr063.pdf |
The data is called height_coef.
See https://www.cdc.gov/nchs/data/nhsr/nhsr063.pdf for a desciption on how calculations are made. However, the CDC has different coefficients. The l values were all 1 so they were removed
The source of this data is < https://github.com/hafen/growthstandards >
A data frame with columns:
| variable | class | description |
|---|---|---|
| agedays | numeric | Age of child in days |
| sex | character | The gender of the child |
| mean | numeric | The mean for a child at agedays |
| sd | numeric | The standard deviation of weights for children at agedays |
| cv | numeric | The coefficient of variation for children at agedays - https://en.wikipedia.org/wiki/Coefficient_of_variation |
| l | integer | The box-cox tranformation for children at agedays - https://www.cdc.gov/nchs/data/nhsr/nhsr063.pdf |
The data is called childhealth_summary.
For all data from three studies
The source of this data is < https://github.com/stefvanbuuren/brokenstick, https://github.com/hafen/hbgd, and https://clinepidb.org/ce/app/record/dataset/DS_5c41b87221 >
A data frame with columns:
| variable | class | description |
|---|---|---|
| subjid | character | unique identifyer of each child |
| sex | character | Male or Female |
| country | character | Label for the varied countries |
| haz_mean | numeric | The average HAZ score over all measurements |
| waz_mean | numeric | The average WAZ score over all measurements |
| observations | integer | Number of observations for that subject |
| agedays_last | numeric | The age in days for the HAZ and WAZ last variable |
| agedays_first | numeric | The age in days for the HAZ and WAZ first variable |
| haz_last | numeric | The first HAZ measurement on the subject for age in days |
| haz_first | numeric | The last HAZ measurement on the subject for age in days |
| waz_first | numeric | The first WAZ measurement on the subject for age in days |
| waz_last | numeric | The last WAZ measurement on the subject for age in days |