Outcome

All respondents

Full-time, 12 hour shifts

Full-time, non-12 hour shifts

Part-time, all shifts

Continuous Measures

n

Mean (SD)

n

Mean (SD)

n

Mean (SD)

n

Mean (SD)

Gestational age stopped working

118

35.2 (4.37)

56

35.1 (4.33)

27

34.0 (5.01)

33

(36.38)

Gestational age at delivery

120

38.7 (1.94)

56

38.7 (1.83)

27

38.3 (2.33)

33

39.3 (1.53)

Differential

118

3.6 (4.25)

56

3.7 (4.29)

27

4.3 (5.04)

33

2.9 (3.57)