Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study
Objectives There is limited information about the stability and predictability of Bayley Scales of Infant and Toddler Development (BSID) assessing child development in low- and middle-income settings. The objective of the present study was to analyse stability and predictive validity of BSID using a...
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| Format: | Article |
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BMJ Publishing Group
2024-11-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/14/11/e082624.full |
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| author | Venkata Raghava Mohan Gagandeep Kang Tor A Strand Beena Koshy Sushil John Jayaprakash Muliyil Rebecca Scharf Manikandan Srinivasan Rachel Beulah |
| author_facet | Venkata Raghava Mohan Gagandeep Kang Tor A Strand Beena Koshy Sushil John Jayaprakash Muliyil Rebecca Scharf Manikandan Srinivasan Rachel Beulah |
| author_sort | Venkata Raghava Mohan |
| collection | DOAJ |
| description | Objectives There is limited information about the stability and predictability of Bayley Scales of Infant and Toddler Development (BSID) assessing child development in low- and middle-income settings. The objective of the present study was to analyse stability and predictive validity of BSID using an existing birth cohort.Design Prospective birth cohort follow-up study.Setting and participants A community-based birth cohort of 251 newborns was recruited and followed-up in urban Vellore, South India, until 9 years of age. Using BSID-III, child development was measured at 6, 15, 24 and 36 months. Cognition was assessed using the Wechsler Preschool Primary Scales of Intelligence at 5 years, and the Malin’s Intelligence Scale for Indian Children scale at 7 and 9 years of age. The stability of BSID measurements across time points was expressed by intraclass correlation (ICC) and concordance correlation coefficients. Linear regression was used to describe the predictability of BSID-III of cognition at 5, 7 and 9 years.Results The ICC for domain-wise BSID scores between time points of measurement suggested a weak correlation. The BSID scores at 36 months correlated best with Full-Scale Intelligence Quotient (FSIQ) at 5 years (r: 0.40–0.49), 7 years (r: 0.35–0.48) and 9 years (r: 0.36–0.38). BSID scores at 36 months predicted FSIQ better at 5, 7 and 9 years with R2 ranging from 23.3% to 28.6%, when compared with 24 months BSID scores (R2 - 16.0% to 25.9%).Conclusion Poor stability and predictability of BSID warrant caution in the predictive projection of early childhood assessments. Better predictability of future cognition of 36 months’ BSID scores highlights its advantage over the 24 months’ assessment. |
| format | Article |
| id | doaj-art-5d25dc1d1fad4637bb0f187e2ec57dd5 |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-5d25dc1d1fad4637bb0f187e2ec57dd52024-11-26T04:30:10ZengBMJ Publishing GroupBMJ Open2044-60552024-11-01141110.1136/bmjopen-2023-082624Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective studyVenkata Raghava Mohan0Gagandeep Kang1Tor A Strand2Beena Koshy3Sushil John4Jayaprakash Muliyil5Rebecca Scharf6Manikandan Srinivasan7Rachel Beulah81 Christian Medical College Vellore, Vellore, Tamil Nadu, India1 Christian Medical College Vellore, Vellore, Tamil Nadu, India3 University of Bergen, Bergen, Norway1 Christian Medical College Vellore, Vellore, Tamil Nadu, India1 Christian Medical College Vellore, Vellore, Tamil Nadu, India1 Christian Medical College Vellore, Vellore, Tamil Nadu, India2 University of Virginia, Charlottesville, Virginia, USA1 Christian Medical College Vellore, Vellore, Tamil Nadu, India1 Christian Medical College Vellore, Vellore, Tamil Nadu, IndiaObjectives There is limited information about the stability and predictability of Bayley Scales of Infant and Toddler Development (BSID) assessing child development in low- and middle-income settings. The objective of the present study was to analyse stability and predictive validity of BSID using an existing birth cohort.Design Prospective birth cohort follow-up study.Setting and participants A community-based birth cohort of 251 newborns was recruited and followed-up in urban Vellore, South India, until 9 years of age. Using BSID-III, child development was measured at 6, 15, 24 and 36 months. Cognition was assessed using the Wechsler Preschool Primary Scales of Intelligence at 5 years, and the Malin’s Intelligence Scale for Indian Children scale at 7 and 9 years of age. The stability of BSID measurements across time points was expressed by intraclass correlation (ICC) and concordance correlation coefficients. Linear regression was used to describe the predictability of BSID-III of cognition at 5, 7 and 9 years.Results The ICC for domain-wise BSID scores between time points of measurement suggested a weak correlation. The BSID scores at 36 months correlated best with Full-Scale Intelligence Quotient (FSIQ) at 5 years (r: 0.40–0.49), 7 years (r: 0.35–0.48) and 9 years (r: 0.36–0.38). BSID scores at 36 months predicted FSIQ better at 5, 7 and 9 years with R2 ranging from 23.3% to 28.6%, when compared with 24 months BSID scores (R2 - 16.0% to 25.9%).Conclusion Poor stability and predictability of BSID warrant caution in the predictive projection of early childhood assessments. Better predictability of future cognition of 36 months’ BSID scores highlights its advantage over the 24 months’ assessment.https://bmjopen.bmj.com/content/14/11/e082624.full |
| spellingShingle | Venkata Raghava Mohan Gagandeep Kang Tor A Strand Beena Koshy Sushil John Jayaprakash Muliyil Rebecca Scharf Manikandan Srinivasan Rachel Beulah Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study BMJ Open |
| title | Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study |
| title_full | Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study |
| title_fullStr | Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study |
| title_full_unstemmed | Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study |
| title_short | Stability and predictability of Bayley Scales of Infant and Toddler Development: evidence from a south Indian birth cohort prospective study |
| title_sort | stability and predictability of bayley scales of infant and toddler development evidence from a south indian birth cohort prospective study |
| url | https://bmjopen.bmj.com/content/14/11/e082624.full |
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