Studies:

Scope: human

Type: text

Allowed values:

• preterm (if the exact gestational age is unknown, but it is < 37 weeks)
• term (if the exact gestational age is unknown, but it is >= 37 weeks)
• extremely preterm (< 28 weeks)
• very preterm (>= 28 weeks, < 32 weeks)
• moderate preterm (>= 32 weeks, < 34 weeks)
• late preterm (>= 34 weeks, < 37 weeks)
• early term (>= 37 weeks, < 39 weeks)
• full term (>= 39 weeks, < 41 weeks)
• late term (>= 41 weeks, < 42 weeks)
• post-term (>= 42 weeks)

Description: The subject's gestational age at birth is classified into preterm and term birth, either as stated in the paper or computed from the birth_gestational_age_weeks.