International Newborn Size References for Very Preterm Infants: table of z-score for weight-length ratio-for-gestational age for very preterm infants

International Newborn Size References for Very Preterm Infants: table of z-score for weight-length ratio-for-gestational age for very preterm infants

Usage

wlr_gestage_pt_sd

Format

A tibble with 882 rows and 5 columns:

week

Gestational age weeks component

day

Gestational age days component

sex

Sex; 1 = male; 2 = female

sd

Standard deviation (z-score): -3, -2, -1, 0, 1, 2, 3

wlr

Weight-length ratio in kilogram/metre

Source

Villar J, Giuliani F, Fenton TR, Ohuma EO, Ismail LC, Kennedy SH et al. INTERGROWTH-21st very preterm size at birth reference charts. Lancet 2016, 387(10021):844-45.

Examples

wlr_gestage_pt_sd
#> # A tibble: 882 × 5
#>    week  day     sex sd    wlr  
#>    <chr> <chr> <dbl> <chr> <chr>
#>  1 24    0         1 -3SD  0.51 
#>  2 24    0         1 -2SD  1.11 
#>  3 24    0         1 -1SD  1.71 
#>  4 24    0         1 0     2.31 
#>  5 24    0         1 1SD   2.90 
#>  6 24    0         1 2SD   3.50 
#>  7 24    0         1 3SD   4.10 
#>  8 24    1         1 -3SD  0.53 
#>  9 24    1         1 -2SD  1.13 
#> 10 24    1         1 -1SD  1.72 
#> # … with 872 more rows