Vulnerable newborn types

Centre for translational Medicine & Parasitology

Department of Immunology and Microbiology

Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Vulnerable newborn types : analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021. / Erchick, D. J.; Hazel, E. A.; Katz, J.; Lee, A. C.C.; Diaz, M.; Wu, L. S.F.; Yoshida, S.; Bahl, R.; Grandi, C.; Labrique, A. B.; Rashid, M.; Ahmed, S.; Roy, A. D.; Haque, R.; Shaikh, S.; Baqui, A. H.; Saha, S. K.; Khanam, R.; Rahman, S.; Shapiro, R.; Zash, R.; Silveira, M. F.; Buffarini, R.; Kolsteren, P.; Lachat, C.; Huybregts, L.; Roberfroid, D.; Zeng, L.; Zhu, Z.; He, J.; Qiu, X.; Gebreyesus, S. H.; Tesfamariam, K.; Bekele, D.; Chan, G.; Baye, E.; Workneh, F.; Asante, K. P.; Kaali, E. B.; Adu-Afarwuah, S.; Dewey, K. G.; Gyaase, S.; Wylie, B. J.; Kirkwood, B. R.; Manu, A.; Schmiegelow, C.; Lusingu, J. P.A.; Theander, Thor (Member of author collaboration); Bygbjerg, Ib (Member of author collaboration); the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group.

In: BJOG: An International Journal of Obstetrics and Gynaecology, 2024.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Erchick, DJ, Hazel, EA, Katz, J, Lee, ACC, Diaz, M, Wu, LSF, Yoshida, S, Bahl, R, Grandi, C, Labrique, AB, Rashid, M, Ahmed, S, Roy, AD, Haque, R, Shaikh, S, Baqui, AH, Saha, SK, Khanam, R, Rahman, S, Shapiro, R, Zash, R, Silveira, MF, Buffarini, R, Kolsteren, P, Lachat, C, Huybregts, L, Roberfroid, D, Zeng, L, Zhu, Z, He, J, Qiu, X, Gebreyesus, SH, Tesfamariam, K, Bekele, D, Chan, G, Baye, E, Workneh, F, Asante, KP, Kaali, EB, Adu-Afarwuah, S, Dewey, KG, Gyaase, S, Wylie, BJ, Kirkwood, BR, Manu, A, Schmiegelow, C, Lusingu, JPA, Theander, T, Bygbjerg, I & the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group 2024, 'Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021', BJOG: An International Journal of Obstetrics and Gynaecology. https://doi.org/10.1111/1471-0528.17510

APA

Erchick, D. J., Hazel, E. A., Katz, J., Lee, A. C. C., Diaz, M., Wu, L. S. F., Yoshida, S., Bahl, R., Grandi, C., Labrique, A. B., Rashid, M., Ahmed, S., Roy, A. D., Haque, R., Shaikh, S., Baqui, A. H., Saha, S. K., Khanam, R., Rahman, S., ... the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group (2024). Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021. BJOG: An International Journal of Obstetrics and Gynaecology. https://doi.org/10.1111/1471-0528.17510

Vancouver

Erchick DJ, Hazel EA, Katz J, Lee ACC, Diaz M, Wu LSF et al. Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021. BJOG: An International Journal of Obstetrics and Gynaecology. 2024. https://doi.org/10.1111/1471-0528.17510

Author

Erchick, D. J. ; Hazel, E. A. ; Katz, J. ; Lee, A. C.C. ; Diaz, M. ; Wu, L. S.F. ; Yoshida, S. ; Bahl, R. ; Grandi, C. ; Labrique, A. B. ; Rashid, M. ; Ahmed, S. ; Roy, A. D. ; Haque, R. ; Shaikh, S. ; Baqui, A. H. ; Saha, S. K. ; Khanam, R. ; Rahman, S. ; Shapiro, R. ; Zash, R. ; Silveira, M. F. ; Buffarini, R. ; Kolsteren, P. ; Lachat, C. ; Huybregts, L. ; Roberfroid, D. ; Zeng, L. ; Zhu, Z. ; He, J. ; Qiu, X. ; Gebreyesus, S. H. ; Tesfamariam, K. ; Bekele, D. ; Chan, G. ; Baye, E. ; Workneh, F. ; Asante, K. P. ; Kaali, E. B. ; Adu-Afarwuah, S. ; Dewey, K. G. ; Gyaase, S. ; Wylie, B. J. ; Kirkwood, B. R. ; Manu, A. ; Schmiegelow, C. ; Lusingu, J. P.A. ; Theander, Thor ; Bygbjerg, Ib ; the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group. / Vulnerable newborn types : analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021. In: BJOG: An International Journal of Obstetrics and Gynaecology. 2024.

Bibtex

@article{8a7304fdb7b7481a98cf4b8eca5c1e37,

title = "Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021",

abstract = "Objective: To examine prevalence of novel newborn types among 541 285 live births in 23 countries from 2000 to 2021. Design: Descriptive multi-country secondary data analysis. Setting: Subnational, population-based birth cohort studies (n = 45) in 23 low- and middle-income countries (LMICs) spanning 2000–2021. Population: Liveborn infants. Methods: Subnational, population-based studies with high-quality birth outcome data from LMICs were invited to join the Vulnerable Newborn Measurement Collaboration. We defined distinct newborn types using gestational age (preterm [PT], term [T]), birthweight for gestational age using INTERGROWTH-21st standards (small for gestational age [SGA], appropriate for gestational age [AGA] or large for gestational age [LGA]), and birthweight (low birthweight, LBW [<2500 g], nonLBW) as ten types (using all three outcomes), six types (by excluding the birthweight categorisation), and four types (by collapsing the AGA and LGA categories). We defined small types as those with at least one classification of LBW, PT or SGA. We presented study characteristics, participant characteristics, data missingness, and prevalence of newborn types by region and study. Results: Among 541 285 live births, 476 939 (88.1%) had non-missing and plausible values for gestational age, birthweight and sex required to construct the newborn types. The median prevalences of ten types across studies were T+AGA+nonLBW (58.0%), T+LGA+nonLBW (3.3%), T+AGA+LBW (0.5%), T+SGA+nonLBW (14.2%), T+SGA+LBW (7.1%), PT+LGA+nonLBW (1.6%), PT+LGA+LBW (0.2%), PT+AGA+nonLBW (3.7%), PT+AGA+LBW (3.6%) and PT+SGA+LBW (1.0%). The median prevalence of small types (six types, 37.6%) varied across studies and within regions and was higher in Southern Asia (52.4%) than in Sub-Saharan Africa (34.9%). Conclusions: Further investigation is needed to describe the mortality risks associated with newborn types and understand the implications of this framework for local targeting of interventions to prevent adverse pregnancy outcomes in LMICs.",

keywords = "low birthweight, newborn, preterm birth, small for gestational age",

author = "Erchick, {D. J.} and Hazel, {E. A.} and J. Katz and Lee, {A. C.C.} and M. Diaz and Wu, {L. S.F.} and S. Yoshida and R. Bahl and C. Grandi and Labrique, {A. B.} and M. Rashid and S. Ahmed and Roy, {A. D.} and R. Haque and S. Shaikh and Baqui, {A. H.} and Saha, {S. K.} and R. Khanam and S. Rahman and R. Shapiro and R. Zash and Silveira, {M. F.} and R. Buffarini and P. Kolsteren and C. Lachat and L. Huybregts and D. Roberfroid and L. Zeng and Z. Zhu and J. He and X. Qiu and Gebreyesus, {S. H.} and K. Tesfamariam and D. Bekele and G. Chan and E. Baye and F. Workneh and Asante, {K. P.} and Kaali, {E. B.} and S. Adu-Afarwuah and Dewey, {K. G.} and S. Gyaase and Wylie, {B. J.} and Kirkwood, {B. R.} and A. Manu and C. Schmiegelow and Lusingu, {J. P.A.} and Thor Theander and Ib Bygbjerg and {the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group}",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.",

year = "2024",

doi = "10.1111/1471-0528.17510",

language = "English",

journal = "BJOG: An International Journal of Obstetrics and Gynaecology",

issn = "0140-7686",

publisher = "Wiley-Blackwell",

}

RIS

TY - JOUR

T1 - Vulnerable newborn types

T2 - analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000–2021

AU - Erchick, D. J.

AU - Hazel, E. A.

AU - Katz, J.

AU - Lee, A. C.C.

AU - Diaz, M.

AU - Wu, L. S.F.

AU - Yoshida, S.

AU - Bahl, R.

AU - Grandi, C.

AU - Labrique, A. B.

AU - Rashid, M.

AU - Ahmed, S.

AU - Roy, A. D.

AU - Haque, R.

AU - Shaikh, S.

AU - Baqui, A. H.

AU - Saha, S. K.

AU - Khanam, R.

AU - Rahman, S.

AU - Shapiro, R.

AU - Zash, R.

AU - Silveira, M. F.

AU - Buffarini, R.

AU - Kolsteren, P.

AU - Lachat, C.

AU - Huybregts, L.

AU - Roberfroid, D.

AU - Zeng, L.

AU - Zhu, Z.

AU - He, J.

AU - Qiu, X.

AU - Gebreyesus, S. H.

AU - Tesfamariam, K.

AU - Bekele, D.

AU - Chan, G.

AU - Baye, E.

AU - Workneh, F.

AU - Asante, K. P.

AU - Kaali, E. B.

AU - Adu-Afarwuah, S.

AU - Dewey, K. G.

AU - Gyaase, S.

AU - Wylie, B. J.

AU - Kirkwood, B. R.

AU - Manu, A.

AU - Schmiegelow, C.

AU - Lusingu, J. P.A.

AU - the Subnational Vulnerable Newborn Prevalence Collaborative Group and Vulnerable Newborn Measurement Core Group

A2 - Theander, Thor

A2 - Bygbjerg, Ib

PY - 2024

Y1 - 2024

N2 - Objective: To examine prevalence of novel newborn types among 541 285 live births in 23 countries from 2000 to 2021. Design: Descriptive multi-country secondary data analysis. Setting: Subnational, population-based birth cohort studies (n = 45) in 23 low- and middle-income countries (LMICs) spanning 2000–2021. Population: Liveborn infants. Methods: Subnational, population-based studies with high-quality birth outcome data from LMICs were invited to join the Vulnerable Newborn Measurement Collaboration. We defined distinct newborn types using gestational age (preterm [PT], term [T]), birthweight for gestational age using INTERGROWTH-21st standards (small for gestational age [SGA], appropriate for gestational age [AGA] or large for gestational age [LGA]), and birthweight (low birthweight, LBW [<2500 g], nonLBW) as ten types (using all three outcomes), six types (by excluding the birthweight categorisation), and four types (by collapsing the AGA and LGA categories). We defined small types as those with at least one classification of LBW, PT or SGA. We presented study characteristics, participant characteristics, data missingness, and prevalence of newborn types by region and study. Results: Among 541 285 live births, 476 939 (88.1%) had non-missing and plausible values for gestational age, birthweight and sex required to construct the newborn types. The median prevalences of ten types across studies were T+AGA+nonLBW (58.0%), T+LGA+nonLBW (3.3%), T+AGA+LBW (0.5%), T+SGA+nonLBW (14.2%), T+SGA+LBW (7.1%), PT+LGA+nonLBW (1.6%), PT+LGA+LBW (0.2%), PT+AGA+nonLBW (3.7%), PT+AGA+LBW (3.6%) and PT+SGA+LBW (1.0%). The median prevalence of small types (six types, 37.6%) varied across studies and within regions and was higher in Southern Asia (52.4%) than in Sub-Saharan Africa (34.9%). Conclusions: Further investigation is needed to describe the mortality risks associated with newborn types and understand the implications of this framework for local targeting of interventions to prevent adverse pregnancy outcomes in LMICs.

AB - Objective: To examine prevalence of novel newborn types among 541 285 live births in 23 countries from 2000 to 2021. Design: Descriptive multi-country secondary data analysis. Setting: Subnational, population-based birth cohort studies (n = 45) in 23 low- and middle-income countries (LMICs) spanning 2000–2021. Population: Liveborn infants. Methods: Subnational, population-based studies with high-quality birth outcome data from LMICs were invited to join the Vulnerable Newborn Measurement Collaboration. We defined distinct newborn types using gestational age (preterm [PT], term [T]), birthweight for gestational age using INTERGROWTH-21st standards (small for gestational age [SGA], appropriate for gestational age [AGA] or large for gestational age [LGA]), and birthweight (low birthweight, LBW [<2500 g], nonLBW) as ten types (using all three outcomes), six types (by excluding the birthweight categorisation), and four types (by collapsing the AGA and LGA categories). We defined small types as those with at least one classification of LBW, PT or SGA. We presented study characteristics, participant characteristics, data missingness, and prevalence of newborn types by region and study. Results: Among 541 285 live births, 476 939 (88.1%) had non-missing and plausible values for gestational age, birthweight and sex required to construct the newborn types. The median prevalences of ten types across studies were T+AGA+nonLBW (58.0%), T+LGA+nonLBW (3.3%), T+AGA+LBW (0.5%), T+SGA+nonLBW (14.2%), T+SGA+LBW (7.1%), PT+LGA+nonLBW (1.6%), PT+LGA+LBW (0.2%), PT+AGA+nonLBW (3.7%), PT+AGA+LBW (3.6%) and PT+SGA+LBW (1.0%). The median prevalence of small types (six types, 37.6%) varied across studies and within regions and was higher in Southern Asia (52.4%) than in Sub-Saharan Africa (34.9%). Conclusions: Further investigation is needed to describe the mortality risks associated with newborn types and understand the implications of this framework for local targeting of interventions to prevent adverse pregnancy outcomes in LMICs.

KW - low birthweight

KW - newborn

KW - preterm birth

KW - small for gestational age

U2 - 10.1111/1471-0528.17510

DO - 10.1111/1471-0528.17510

M3 - Journal article

C2 - 37156239

AN - SCOPUS:85158151659

JO - BJOG: An International Journal of Obstetrics and Gynaecology

JF - BJOG: An International Journal of Obstetrics and Gynaecology

SN - 0140-7686

ER -

ID: 347698068

CMP