International fetal growth standards: table of z-scores of occipito-frontal diameter based on gestation age in exact weeks

International fetal growth standards: table of z-scores of occipito-frontal diameter based on gestation age in exact weeks

Usage

ofd_gestage_sd

Format

A tibble with 189 rows and 3 columns:

gestage

Gestational age in exact weeks

sd

z-scores (-3SD, -2SD, -1SD, 0, 1SD, 2SD, 3SD)

ofd

Occipito-frontal diameter in millimetres

Source

Papageorghiou AT, Ohuma EO, Altman DG, Todros T, Cheikh Ismail L, Lambert A et al. International standards for fetal growth based on serial ultrasound measurements: the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project. Lancet 2014, 384(9946):869-79.

Examples

ofd_gestage_sd
#> # A tibble: 189 × 3
#>    gestage sd    ofd  
#>  * <chr>   <chr> <chr>
#>  1 14      -3SD  28.0 
#>  2 14      -2SD  29.9 
#>  3 14      -1SD  31.8 
#>  4 14      0     33.8 
#>  5 14      1SD   35.7 
#>  6 14      2SD   37.6 
#>  7 14      3SD   39.6 
#>  8 15      -3SD  32.0 
#>  9 15      -2SD  34.1 
#> 10 15      -1SD  36.2 
#> # … with 179 more rows