Table 3. The attributable risk and population attributable risk for failing to complete compulsory school after 10 years of education.

Week 40 is used as reference.

Label GA (weeks)	Attributable risk pr. 100 children	Population attributable risk pr. 100,000 children
Extremely preterm (< 28)	15.7	65.8
Very preterm (28–31)	9.1	171.3
Moderate preterm (32–34)	4.5	209.9
Late preterm (35–36)	3.5	334.2
Early term (37–38)	2.2	728.1
Term (39)	0.8	314.7
Term* (41)	-0.3	-102.1
Post-term (> = 42)	0.3	67.7

* Since week 40 is used as reference but children born in week 41 have a lower risk of failing to complete compulsory school the excess risk is negative for this week.