TABLE 3

aORs and 95% CIs Comparing Those Born Late-Preterm (34 wk 0 d to 36 wk 6 d of Gestation) and Term (37 wk 0 d to 41 wk 6 d of Gestation) in the Intergenerational Social Mobility

Intergenerational Social MobilityModel 1Model 2Model 3
aOR (95% CI)PaOR (95% CI)PaOR (95% CI)P
Odds of belonging to downwardly mobile category versus stable/upwardly mobile category
 From father’s occupational category in childhood
  to own adult occupational category
   Late-preterm (34–36 wk)1.53 (1.02–2.28).041.55 (1.03–2.32).041.52 (1.01–2.29).04
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
  to own adult educational category
   Late-preterm (34–36 wk)1.14 (0.85–1.53).391.17 (0.87–1.58).301.16 (0.86–1.56).33
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
  to own adult income category
   Late-preterm (34–36 wk)1.22 (0.90–1.68).201.24 (0.91–1.70).181.21 (0.88–1.66).24
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
Odds of belonging to upwardly mobile category versus stable/downwardly mobile category
 From father’s occupational category in childhood
  to own adult occupational category
   Late-preterm (34–36 wk)0.72 (0.58–0.91).010.70 (0.56–0.89).0030.71 (0.56–0.89).003
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
  to own adult educational category
   Late-preterm (34–36 wk)0.81 (0.62–1.05).110.80 (0.62–1.05).100.81 (0.62–1.05).11
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
  to own adult income category
   Late-preterm (34–36 wk)0.70 (0.58–0.86).0010.70 (0.58–0.86).0010.70 (0.58–0.87).001
   Term (37–41 wk)1.0 (reference)1.0 (reference)1.0 (reference)
  • Model 1 is adjusted for gender, year of birth, and father’s occupational category in childhood; Model 2 is further adjusted for birth order, mother’s age, and mother’s BMI at delivery; Model 3 is further adjusted for birth weight relative to length of gestation.