gcdg_jam_lbw {childdevdata}R Documentation

Jamaica, low birth weight: gcdg_jam_lbw


A dataset with developmental scores at the item level for 226 unique children aged 1.0-2.2 years, two waves.




A data.frame with 443 rows and 192 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)
gricgd012 0/1 (Performance) Takes cube or toy from table
gricgd013 0/1 (Performance) Passes toy from hand to hand
gricgd014 0/1 Drops one cube for third
gricgd015 0/1 Manipulates 2 objects at once
gricgd016 0/1 Reacts to Paper IV - Plays with, crumbles, etc.
gricgd017 0/1 Lifts inverted cup in search of toy
gricgd018 0/1 Rattles box
gricgd019 0/1 Lifts lid off box
gricgd020 0/1 (Performance) Clicks 2 bricks together
gricgd021 0/1 Tries to take cubes out of box
gricgd022 0/1 Finds toy under cup
gricgd023 0/1 (Performance) Accepts 3rd cube without dropping
gricgd024 0/1 Manipulates box, lid and cubes
gricgd201 0/1 Remove both cubes from box (shown)
gricgd202 0/1 Unwraps and finds toy
gricgd203 0/1 One circle board - 2 trials
gricgd204 0/1 Opens 2 boxes
gricgd205 0/1 Puts cubes in and out of boxes in play
gricgd206 0/1 Puts 2 cubes back into one box when encouraged to do so
gricgd207 0/1 Two circle board - one in
gricgd208 0/1 Square board - 2 trials
gricgd209 0/1 Two circle board - two in
gricgd210 0/1 Can put lid back on box
gricgd211 0/1 (Performance) Three hole board - one in.
gricgd212 0/1 Puts 2 cubes into box lid on - all complete
gricgd213 0/1 Circle and square board together
gricgd214 0/1 Three-hole board - two in
gricgd215 0/1 (Performance) Three-hole board - three in.
gricgd216 0/1 Two circle board, rotated
gricgd217 0/1 Circle and square board rotated
gricgd218 0/1 (credit as 2 items)
gricgd219 0/1 Assembles three boxes
gricgd220 0/1 (credit as 2 items)
gricgd221 0/1 Can open screw toy
gricgd222 0/1 (Performance) Can open screw toy (credit as two items)
gricgd223 0/1 Three-hole board, rotated
gricgd224 0/1 (Performance) Three-hole board, rotated (credit as two items
gricgd301 0/1 Reassembles screw toy
gricgd302 0/1 Returns 9 bricks to box and replaces lid within one minute
gricgd303 0/1 Four-squares board completed within one minute - 2 trials
gricgd304 0/1 Six-hole board completed within one minute - 2 trials
gricgd305 0/1 Four-squares board: (40 secs).
gricgd306 0/1 Six-hole board: (40 secs).
gricgd401 0/1 Returns 9 bricks to box and replaces lid within 40 seconds
gricgd402 0/1 (Performance) Builds bridge with 3 boxes - inferior model bu
gricgd403 0/1 Assembles brick-boxes by colour - no error
gricgd404 0/1 Four-squares board: (15 secs)
gricgd405 0/1 Train under bridge successfully
gricgd406 0/1 Eleven-hole board (within 60 secs) Time taken (.....)
griehd014 0/1 Strikes one object with another
griehd019 0/1 Throws object
griehd020 0/1 (Eye and Hand Co-ordination) Thumb opposition complete.
griehd021 0/1 (Eye and Hand Co-ordination) Can point with index finger.
griehd022 0/1 Interest in motor car
griehd023 0/1 (Eye and Hand Co-ordination) Can hold pencil as if to mark o
griehd024 0/1 Likes holding little toys
griehd201 0/1 Uses pencil on paper a little
griehd202 0/1 Shows preference for one hand
griehd203 0/1 Plays rolling a ball
griehd204 0/1 Can hold 4 cubes in hands at once
griehd205 0/1 (Eye and Hand Co-ordination) Plays pushing little cars along
griehd206 0/1 Places one box, lid or brick upon another
griehd207 0/1 (Eye and Hand Co-ordination) Tower of 2 bricks - imitation.
griehd208 0/1 (Eye and Hand Co-ordination) Pulls paper or cloth to get toy
griehd209 0/1 (Eye and Hand Co-ordination) Scribbles more freely, and deli
griehd210 0/1 Constructive play with boxes or other materials
griehd211 0/1 (Eye and Hand Coordination) Constructive play with boxes or
griehd212 0/1 Builds tower of 3 bricks
griehd213 0/1 Can throw a ball
griehd214 0/1 (Eye and hand) Can throw a ball
griehd215 0/1 Tower of 4+ bricks
griehd216 0/1 Enjoys vigourous scribble
griehd217 0/1 Can pour water from one cup to another
griehd218 0/1 Tower of 5+ bricks
griehd219 0/1 (Eye and Hand Co-ordination) Circular scribble in imitation
griehd220 0/1 Makes train of 3+ bricks
griehd221 0/1 (Credit as 2 items)
griehd222 0/1 Makes a brick or toy walk
griehd223 0/1 (Eye and Hand Co-ordination) Tower of 6 or 7 bricks.
griehd224 0/1 (Eye and Hand Co-ordination) Draws a perpendicular stroke or
griehd301 0/1 (Eye and Hand Co-ordination) Draws a horizontal stroke in im
griehd302 0/1 Threads 6 beads
griehd303 0/1 (Eye and Hand Co-ordination) Builds a tower of 8+ bricks.
griehd304 0/1 Handles scissors - tries to cut paper (4 inch square)
griehd305 0/1 Copies a circle - primitive model. Stage I.
griehd306 0/1 (Eye and Hand Co-ordination) Copies a cross -recognisable. S
griehd401 0/1 Folds a four-inch square of paper once (i.e. in half)
griehd402 0/1 Threads 12+ beads (not by pattern)
griehd403 0/1 (Eye and Hand Co-ordination) Can cut square into two fairly
griehd404 0/1 Folds a four-inch square twice
griehd405 0/1 Copies a 'ladder'. Stage I.
griehd406 0/1 Draws a 'man' recognisable. Stage I.
grigmd019 0/1 Crawling Reaction III: Makes some progress forwards or backw
grigmd020 0/1 Sits well in a chair
grigmd021 0/1 (Locomotor) Pulls self up and stands holding on to furniture
grigmd022 0/1 (Locomotor) Crawling Reaction IV: Creeps on hands and knees
grigmd023 0/1 (Locomotor) Side-steps around inside cot or play-pen holding
grigmd024 0/1 (Locomotor) Can walk when led.
grigmd201 0/1 Climbs on a low ledge or step
grigmd202 0/1 (Locomotor) Stands alone
grigmd203 0/1 (Locomotor) Takes a few steps alone
grigmd204 0/1 Kneels on floor or chair
grigmd205 0/1 Climbs - stairs (up)
grigmd206 0/1 Likes pushing pram, toy horse, etc.
grigmd207 0/1 (Locomotor) Walks alone well
grigmd208 0/1 (Locomotor) Stoops.
grigmd209 0/1 Develops a quick trot
grigmd210 0/1 Climbs into a low armchair
grigmd211 0/1 (Locomotor) Can walk backwards a few steps
grigmd212 0/1 Walks pulling toy on a string
grigmd213 0/1 Climbs stairs (up and down)
grigmd214 0/1 (Locomotor) Runs
grigmd215 0/1 Jumps (on the level floor)
grigmd216 0/1 Climbs to stand on a chair
grigmd217 0/1 (Locomotor) Walks upstairs- holding adult's hand
grigmd218 0/1 Can seat self at table
grigmd219 0/1 (Locomotor) Walks up and down stairs.
grigmd220 0/1 (Locomotor) Can kick a ball.
grigmd221 0/1 (Locomotor) Can jump off a step
grigmd222 0/1 (Locomotor) Goes alone on the stairs (any method)
grigmd223 0/1 Throws ball into basket
grigmd224 0/1 Can bring chair and seat self at table
grigmd301 0/1 Jumps off one step- both feet together
grigmd302 0/1 (Locomotor) Can stand on one foot - for 6+ seconds
grigmd303 0/1 Rises from kneeling without using hands
grigmd304 0/1 Can cross both feet and knees when seated
grigmd305 0/1 (Locomotor) Can stand and walk tip-toe (6+ steps)
grigmd306 0/1 (Locomotor) Walks upstairs: one foot on each step, adult man
grigmd401 0/1 Can run fast (indoors)
grigmd404 0/1 Walks a chalkline - 4 ft
grigmd405 0/1 (Locomotor) Can hop on one foot - 3+ steps
grigmd406 0/1 Jumps off 2 steps
grigmd501 0/1 Can run to kick ball
grigmd502 0/1 (Locomotor) Walks downstairs: one foot on each step, adult m
grihsd013 0/1 Responds when called
grihsd014 0/1 2 syllable babble
grihsd015 0/1 Listens to conversations
grihsd016 0/1 (Hearing and Speech) Babbled phrases: 4 + syllables
grihsd017 0/1 (Hearing and Speech) Says Mama or Dada, etc. (one word clear
grihsd018 0/1 Listens to stop watch
grihsd019 0/1 (Hearing and Speech) Rings the bell
grihsd020 0/1 Shakes head for no
grihsd021 0/1 says 2 clear words
grihsd022 0/1 Short babbled sentences of 6+ syllables
grihsd023 0/1 Babbled monologue when alone
grihsd024 0/1 Says three clear words
grihsd201 0/1 Looks at pictures for a sew seconds
grihsd202 0/1 Tries definitely to sing
grihsd203 0/1 (Hearing and Speech)Knows own name.
grihsd204 0/1 Likes rhymes and jingles
grihsd205 0/1 (Hearing and Speech) Looks at pictures with interest
grihsd206 0/1 Uses 4 clear words
grihsd207 0/1 (Hearing and Speech) One object in box identified
grihsd208 0/1 Uses 5 clear words
grihsd209 0/1 Long babbled sentences - some words clear
grihsd210 0/1 Enjoys pictre book
grihsd211 0/1 Uses 6 or 7 clear words
grihsd212 0/1 Two objects in box identified
grihsd213 0/1 9+ clear words
grihsd214 0/1 (Hearing and Speech) Four objects in box identified
grihsd215 0/1 (Hearing and Speech) Picture vocabulary (1)
grihsd216 0/1 Uses 12+ clear words
grihsd217 0/1 Uses word combinations
grihsd218 0/1 Picture vocabulary (2)
grihsd219 0/1 Uses 20+ clear words
grihsd220 0/1 Eight objects in box identified
grihsd221 0/1 Listens to stories
grihsd222 0/1 (Hearing and Speech) Names 4 objects in box
grihsd223 0/1 (Hearing and Speech) Picture vocabulary (4)
grihsd224 0/1 (Hearing and Speech) Uses sentences of 4+ syllables
grihsd301 0/1 Names 12 of 18 objects in box
grihsd302 0/1 Picture vocabulary (12)
grihsd303 0/1 Defines by use (2+) - cup, knife, chair, coat, car, house, p
grihsd304 0/1 Repeats one six-syllable sentence
grihsd305 0/1 Uses 2 descriptive words
grihsd306 0/1 Talks well in sentences of 6+ syllables (record).
grihsd401 0/1 Names six or more objects in large picture
grihsd402 0/1 Names 17-18 objects in box
grihsd403 0/1 Uses 2+ personal pronouns
grihsd404 0/1 (Hearing and Speech) Comprehension 2+ items
grihsd405 0/1 Picture vocabulary (18+)
grihsd406 0/1 (Hearing and Speech) Knows 6+ colours
grihsd501 0/1 (Hearing and Speech) Defines by use: 6+.
grihsd502 0/1 Opposites - 2
grihsd503 0/1 Materials (2+) "What is a table made of? .... a window? ....


The combination of subjid and agedays identifies each unique visit (row).

Instruments: Griffiths Scales (gri)


Walker SP, Chang SM, Powell CA, Grantham-McGregor SM. Psychosocial intervention improves the development of term low-birth-weight infants. The Journal of Nutrition. 2004;134:1417-1423.

[Package childdevdata version 1.1.0 Index]