Preterm Birth (PTB) Rate Calculator

Posted by Dinesh on

Online demography calculator to calculate number of preterm born infants per 100 live births in a year using preterm birth (PTB) rate formula.

Preterm birth rate is the number of preterm born infants per 100 live births in a year.

Calculate Number of Preterm Born Infants per 100 Live Births

Formula:

PTB Rate [%] = [(No. of preterm births / No. of all live births)] 100

where,
PTB = preterm birth rate