Summary characteristics of contributed tools and data sets
| Study | Name of tool | Country, setting and samples | Children (n) | Age range (months) | Domains and number of items used in matching (number provided in data set if different) | HAZ and WAZ*† | Socioeconomic status (SES) and maternal education | Other variables in data set |
| Abubakar et al 38 | Developmental Milestones Checklist (DMC) | Kenya | 284 | 2–19 | Locomotor 17 Fine motor 11 Language 11 Personal-social 27 Total 66 | HAZ/WAZ Very low 5%/6% Low 20%/12% Normal 75%/82% |
SES not specified Maternal education Unschooled: 16% Primary incomplete: 43% Primary complete: 28% Secondary incomplete: 4% Secondary complete: 5% College/university: 4% | |
| Abubakar et al 24 | Kilifi Development Inventory (KDI) | Kenya: rural and urban settings. Quota sampling with stratification based on sex and age | 423 | 5–35 | Gross motor 40 (40) Fine motor 44 (29) Cognitive 1 (0) Total 85 (69) | HAZ/WAZ Very low NS/7% Low NS/17% Normal NS/76% |
SES not specified Maternal education Mean (SD) in years: 4.20 (3.82) years | General health history |
| Fernald et al 37 | Ages and Stages Questionnaire (ASQ) | India: 160 clusters Indonesia:160 clusters Peru: 211 clusters. Random sampling within rural sampling clusters | 3517 1781 2957 | 3–23 3–23 3–23 | Communication 35 (34) Gross motor 35 (34) Personal-social 36 (31) Total 106 (99) | HAZ/WAZ India: Very low 24%/19% Low 20%/24% Normal 56%/57% HAZ/WAZ Indonesia: Very low 5%/3% Low 15%/10% Normal 80%/87% HAZ/WAZ Peru: Very low 8%/2% Low 21%/7% Normal 72%/90% |
SES
Household wealth index26 mean (SD) India: 0.0 (2.7) Indonesia: 0.0 (2.0) Peru: 0.1 (2.4) Maternal education Mean (SD) in years India: 4.7 (4.7) Indonesia: 8.1 (3.3) Peru: 7.4 (4.0) | Food and liquids General health history Birth information Family care indicators |
| Gladstone et al21 | Malawi Development Assessment Tool (MDAT) | Malawi: 3 rural sites, 1 semiurban. Quota sampling by 34 age groups | 1093 | 0–35 | Gross motor 43 (34) Fine motor 40 (34) Language 39 (34) Social 36 (34) Total 158 (136) | HAZ/WAZ Malawi: Very low 18%/2% Low 20%/6% Normal 63%/92% |
SES World Bank quintiles26–28: 21% Low 18% Second 20% Mid 21% Fourth 20% High Maternal education 11% No education 64% Primary 23% Secondary 2% Unknown | General health history Wealth Premature Breast feeding Disability screen |
| Hamadani et al 36 | ASQ | Bangladesh: rural children in villages. 21 clusters | 453 | 1–67 | Communication 35 (34) Gross motor 35 (34) Personal-social 36 (31) Total 106 (99) | HAZ/WAZ Bangladesh: Very low 13%/6% Low 25%/24% Normal 62%/70% | Not specified | Food and liquids General health history Birth information Family care indicators |
| Hamadani et al 36 | Bayley Scales of Infant Development III (BSID III) | (As above) | 384 | 1–43 | Cognitive 91 (61) Expressive language 48 (46) Fine motor 66 (54) Gross motor 72 (38) Receptive language 49 (42) Total 326 (241) | (As above) | Not specified | (As above) |
| McCoy et al 26 | Saving Brains Early Childhood Development Scale (SBECDS) | Tanzania: urban and rural settings. All children at study locations invited to join trial29 | 2481 | 17–37 | Cognitive/language 27 Socioemotional 27 Motor 16 Total 70 | HAZ/WAZ Tanzania: Very low 16%/1% Low 27%/7% Normal 56%/92% |
SES not specified Maternal e ducation No schooling 5% Primary school 88% Secondary school 7% | Employment Pregnancy history Child medical history Child trauma Child disability Environmental stimulation |
| McCoy et al 26 | BSID III | (As above) | 964 (subsample of the above) | 17–37 | Cognitive 61 Expressive language 46 Fine motor 54 Gross motor 38 Receptive language 42 Total 241 | (As above) | (As above) | Mother depression Partner violence Alcohol problems Observed inventory Disability |
| Verdisco et al 25 | Regional Project on Child Development Indicators (PRIDI) | Stratified random sample. Primary sampling units (PSU) were selected randomly from across the countries. Costa Rica: 150 PSUs Nicaragua: 57 PSUs Paraguay: 310 PSUs Peru: 416 PSUs | 1804 1835 1504 2567 | 24–59 24–59 24–59 24–59 | Health and development 13 Socioemotional 16 Other 34 Total 63 | HAZ/WAZ Costa Rica: Very low 2%/NS Low 7%/NS Normal 91%/NS HAZ/WAZ Nicaragua: Very low 3%/NS Low 13%/NS Normal 84%/NS HAZ/WAZ Paraguay: Very low 4%/NS Low 7%/NS Normal 89%/NS HAZ/WAZ Peru: Very low 7%/NS Low 14%/NS Normal 89%/NS |
SES not specified Maternal e ducation Incomplete primary or less: Costa Rica: 20% Nicaragua: 32% Paraguay: 36% Peru: 14% Primary but incomplete secondary: Costa Rica: 60% Nicaragua: 40% Paraguay: 44% Peru: 28% Secondary or more: Costa Rica: 20% Nicaragua: 28% Paraguay: 20% Peru: 58% | Details of home Environmental stimulation Mother’s health Child’s health Wealth index |
*Very low (severe) < -3, low (moderate/severe) between -3 and −2, normal > -2 (http://www.who.int/nutgrowthdb/about/introduction/en/index5.html).
†HAZ (height for age z-score) and WAZ (weight for age z-score) were calculated on the participants who actually provided data.
NS, not specified.