Global and regional prevalence of neural tube defects estimates in 2015: Data sources, methods and results – Data Codebook

Persistent identifier

10.17037/DATA.264

Description

This dataset contains the details of the input secondary data sources, methods and results for the global estimates of the birth prevalence of neural tube defects at a global and regional level.

Data Codebook

The NTD_input dataset contains the following variables.

Variable Name Variable Label Answer Label Answer Code Variable Type
inclusion To include in final dataset     Numeric
    Yes 1  
    Null .  
imputation Pre-input imputations undertaken     Numeric
    no 0  
    yes 1  
source Source from which data located     Numeric
    new lit review 1  
    Atta 2  
    Zaganjor 3  
    Lo 4  
    snowball 5  
    registry umbrella 6  
use_reported Country data to use as reported     Numeric
    No 0  
    Yes 1  
author Author or umbrella registry Open ended   String
prog_name Name of individual registry if relevant Open ended   String
year Year of publication Open ended   Numeric
study_yr Year(s) of data collection Open ended   String
country Country Open ended   String
iso3 Country ISO3 code Open ended   String
pop_based Hospital or population based     Numeric
    population based 1  
    hospital based 2  
    unclear 3  
country_place Location of study in country Open ended   String
pct_nat_births Percentage of national births covered by the study/registry Open ended   Numeric
birth_ntd Reports number of affected babies or number of defects     Numeric
    Births - using EUROCAT hierachy for multiple NTDs 1  
    Births using ICBDSR hierachy for multiple NTDs 2  
    not clear 3  
    NTDs - not births 4  
    Births - unclear hierachy 5  
pop_included Population included from eTOPFA, stillbirths and livebirths     Numeric
    Livebirths only 1  
    Livebirths and stillbirths 2  
    Livebirths, stillbirths and eTOPFA at any gestation 3  
    Livebirths, stillbirths and eTOPFA after 28 weeks) 4  
    stillbirths only 5  
sb_def Definition used for stillbirth Open ended   String
cond_included Range of NTDs included     Numeric
    spina bifida, encephalocoele, anencephaly 1  
    Spina Bifida only 2  
    Anencephaly only 3  
    Spina bifida and anencephaly 4  
ffa_mandatory Status and year of mandatory folic fortification     String
    Not mandated No  
    Year of mandate YYYY  
report_cov_pnd Reported coverage of PND in data source Open ended   String
top_legal Reported stats of eTOPFA in data source Open ended   String
asc_method Method used for ascertainment of cases where stated Open ended   String
pop_top Total number of eTOPFA in population Open ended   Numeric
pop_sb Total number of stillbirths in population Open ended   Numeric
pop_lb Total number of livebirths in population Open ended   Numeric
pop_tb Total number of total births (Live and stillbirths) in population Open ended   Numeric
sp_top Number of eTOPFA for spina bifida Open ended   Numeric
sp_sb Number of stillbirths with spina bifida Open ended   Numeric
sp_lb Number of livebirths with spina bifida Open ended   Numeric
sp_tot Total number of eTOPFA, stillbirths and livebirths with spina bifida Open ended   Numeric
enc_top Number of eTOPFA for encephalocoele Open ended   Numeric
enc_sb Number of stillbirths with encephalocoele Open ended   Numeric
enc_lb Number of livebirths with encephalocoele Open ended   Numeric
enc_tot Total number of eTOPFA, stillbirths and livebirths with encephalocoele Open ended   Numeric
an_top Number of eTOPFA for anencephaly Open ended   Numeric
an_sb Number of stillbirths with anencephaly Open ended   Numeric
an_lb Number of livebirths with anencephaly Open ended   Numeric
an_tot Total number of eTOPFA, stillbirths and livebirths with anencephaly Open ended   Numeric
all_top Number of eTOPFA for NTDs Open ended   Numeric
all_sb Number of stillbirths with NTDs Open ended   Numeric
all_lb Number of livebirths with NTDs Open ended   Numeric
all_tot Total number of eTOPFA, stillbirths and livebirths with NTDs Open ended   Numeric
ffa_effect Folic fortification at effective levels and coverage at time of study     Numeric
    No 0  
    Yes 1  
all_tot_unadj All Total Unadjusted Open ended   Numeric
sbr Estimated stillbirth rate Open ended   Numeric
whoname Country WHO name Open ended   String
UN_subregion UN subregion coordinates Open ended   String
UNICEF UNICEF office     String
    Central & Eastern Europe (CEE) and the Commonwealth of Independent States (CIS) CEECIS  
    East Asia and Pacific Regional Office EAPRO  
    Energy Automation Products & Research Organization ESARO  
    Industrialized Industrialized  
    Middle East and North Africa MENA  
    Regional Office for South Asia ROSA  
    Latin America and the Caribbean Regional Office TACRO  
    West and Central Africa Office WCARO  
WHO World Health Organization regions     String
    African Region AFRO  
    Regions of the Americas AMRO  
    Eastern Mediterranean Region EMRO  
    European Region EURO  
    South-East Asian Region SEARO  
    Western Pacific Region WPRO  
MDG MDG     String
    Caucasus and Central Asia Caucasus and Central Asia  
    Developed regions Developed regions  
    Eastern Asia Eastern Asia  
    Latin America & the Caribbean Latin America & the Caribbean  
    Northern Africa Northern Africa  
    Oceania Oceania  
    South-eastern Asia South-eastern Asia  
    Southern Asia Southern Asia  
    Sub-Saharan Africa Sub-Saharan Africa  
    Western Asia Western Asia  
WB WB     String
    East Asia & Pacific    
    Europe & Central Asia    
    Latin America & Caribbean    
    Middle East & North Africa    
    North America    
    South Asia    
    Sub-Saharan Africa    
wb_income WB income range     String
    Low income    
    Lower middle income    
    Upper middle income    
    High income    
prev_ntd prev_ntd (Neural tube defects) Open ended   Numeric
low_prev low_prev Open ended   Numeric
up_prev up_prev Open ended   Numeric
region Region ID Open ended   Numeric
region2 UN sub-regions combined     Numeric
    Australasia and Oceania 1  
    Latin America and the Caribbean 2  
    Eastern Europe and Central Asia 3  
    sub_Saharan Africa 4  
    East Asia 5  
    Northern Africa and Western Asia 6  
    Europe 7  
    SE Asia 8  
    North America 9  
    Southern Asia 10  
imr Infant Mortality Rate (IMR) Open ended   double
nlb Number of livebirths nationally in 2015 Open ended   long
pop_f Population F - coefficient of consanguinity Open ended   double
prop_access Estimated proportion of the population with access, adjusted IMR-2 (consangX2 an Open ended   double
u5mr Number of NTD-related under-5 child mortality (u5mr) Open ended   double
nmr Neonatal Mortality Rate (NMR) Open ended   double
ffa_2015 Folic acid fortification status in 2015     String
    No data    
    No fortification    
    Voluntary    
    No FA fortification    
    Planned not implemented 2015    
    Mandatory not implemented    
    Mandatory    
ffa_start Year of introduction of mandatory fortification Open ended   Integer
Wheat Wheat Open ended   String
Maize Maize Open ended   String
ffa_mgday Estimated FA consumption from fortification mg/day Open ended   double
ffa_cov Estimated coverage of ffa programme Open ended   double
est_red_ntd Estimated % reduction in FA sensitive malformations Open ended   double
near_neighbour Basis for near neighbour assumption Open ended   String
etopfa Legal status/ practice for eTOPFA     Numeric
    Not legal. No evidence of widespread practice 0  
    Legal 1  
    No data 2  
    Not legal, but evidence of widespread practice 3  
    Legal for maternal mental health but not eTOPFA directly 4