gcdg_chn {childdevdata}

China, 1.4-1.9 years: gcdg_chn

Description

A dataset with developmental scores at the item level for 990 unique children.

Usage

gcdg_chn

Format

A data.frame with 990 rows and 83 variables:

Name	Type	Label
ctrcd	chr	Country code (ISO 3166-1 alpha-3)
cohort	chr	Cohort name
cohortn	chr	Cohort number
subjid	int	Child number
agedays	int	Age (days)
sex	chr	Either "male" or "female"
gagebrth	int	Gestational age (days)
by3cgd025	0/1	Searches for fallen object
by3cgd026	0/1	Bell Series: Manipulates
by3cgd027	0/1	Picks Up Block Series: Reaches for second block
by3cgd028	0/1	Pulls cloth to obtain object
by3cgd029	0/1	Pulls string adaptively
by3cgd030	0/1	Retains both blocks
by3cgd031	0/1	Bell Series: Rings purposely
by3cgd032	0/1	Looks at pictures
by3cgd033	0/1	Picks Up Block Series: Retains 2 of 3 blocks
by3cgd034	0/1	Searches for missing objects
by3cgd035	0/1	Takes blocks out of cup
by3cgd036	0/1	Block Series: 1 Block
by3cgd037	0/1	Picks up Block Series: 3 blocks
by3cgd038	0/1	Explores holes in pegboard
by3cgd039	0/1	Pushes car
by3cgd040	0/1	Finds hidden object
by3cgd041	0/1	Suspends ring
by3cgd042	0/1	Removes pellet
by3cgd043	0/1	Clear Box: Front
by3cgd044	0/1	Squeezes object
by3cgd045	0/1	Finds hidden object (Reversed)
by3cgd046	0/1	Removes lid from bottle
by3cgd047	0/1	Pegboard Series: 2 holes
by3cgd048	0/1	Relational Play Series: Self
by3cgd049	0/1	Pink Board Series: 1 piece
by3cgd050	0/1	Finds hidden object (Visible Displacement)
by3cgd051	0/1	Blue Board Series: 1 piece
by3cgd052	0/1	Clear Box: Sides
by3cgd053	0/1	Relational Play Series: Others
by3cgd054	0/1	Block Series: 9 Blocks
by3cgd055	0/1	Pegboard Series: 6 Pegs
by3cgd056	0/1	Pink Board Series: Completes
by3cgd057	0/1	Uses pencil to obtain object
by3cgd058	0/1	Blue Board Series: 4 Pieces
by3cgd059	0/1	Attends to story
by3cgd060	0/1	Rotated pink board
by3cgd061	0/1	Object assembly (Ball)
by3cgd062	0/1	Completes Pegboard: 25 Seconds
by3cgd063	0/1	Object assembly (Ice Cream Cone)
by3cgd064	0/1	Matches pictures
by3cgd065	0/1	Representational play
by3cgd066	0/1	Blue Board Series: Completes (75 seconds)
by3cgd067	0/1	Imitates a two-step action.
by3cgd068	0/1	Matches 3 colors
by3cgd069	0/1	Imaginary play
by3cgd070	0/1	Understands concept of one
by3cgd071	0/1	Multischeme combination play
by3cgd072	0/1	Concept Grouping: colour
by3cgd073	0/1	Concept Grouping: Size
by3fmd019	0/1	Transfers ring
by3fmd020	0/1	Food Pellet Series: Whole hand grasp
by3fmd021	0/1	Transfers block
by3fmd022	0/1	Block Series: Thumb-fingertip grasp
by3fmd023	0/1	Brings spoons or blocks to midline
by3fmd024	0/1	Food Pellet Series: Partial thumb opposition
by3fmd025	0/1	Lifts cup by the handle
by3fmd026	0/1	Food Pellet Series: Thumb-fingertip grasp
by3fmd027	0/1	Turns pages of books
by3fmd028	0/1	Grasp series: Palmar grasp
by3fmd029	0/1	Isolates extended ring finger
by3fmd030	0/1	Scribbles spontaneously
by3fmd031	0/1	Block Stacking Series: 2 blocks
by3fmd032	0/1	Imitates Stroke Series: Random
by3fmd033	0/1	Places 10 pellets in bottle (60 seconds)
by3fmd034	0/1	Grasp series: Transitional grasp
by3fmd035	0/1	Coins in slot
by3fmd036	0/1	Connecting Blocks: Apart
by3fmd037	0/1	Grasp Series: Intermediate (Tripod) grasp
by3fmd038	0/1	Block stacking Series: 6 blocks
by3fmd039	0/1	Uses hand to hold paper in place
by3fmd040	0/1	Imitates Strokes Series: Horizontal
by3fmd041	0/1	Imitates Strokes Series: Vertical
by3fmd042	0/1	Connecting Blocks: Together
by3fmd043	0/1	Imitates Strokes Series: Circular
by3fmd044	0/1	Builds train of blocks
by3fmd045	0/1	Strings 3 blocks

Details

Instruments: Bayley III (by3)

References

Lozoff B, Jiang Y, Li X, Zhou M, Richards B, Xu G, Clark KM, Liang F, Kaciroti N, Zhao G. Low-dose iron supplementation in infancy modestly increases infant iron status at 9 mo without decreasing growth or increasing illness in a randomized clinical trial in rural China. The Journal of nutrition. 2016;146:612-621.