Obstetric outcomes of different cohabitation status
Types of cohabitation status %* 95% CI P-value*,†
PTB:
Married 4.8 4.7-4.8
Cohabited single 6.6 5.8-7.4 0.002
Non-cohabited single 7.1 6.2-8.0 <0.001
VPTB:
Married 0.9 0.9-0.9
Cohabited single 1.4 1.1-1.9 0.002
Non-cohabited single 1.7 1.3-2.2 <0.001
LBW:
Married 3.6 3.6-3.7
Cohabited single 5.0 4.4-5.8 <0.001
Non-cohabited single 5.4 4.7-6.1 <0.001
VLBW:
Married 0.3 0.3-0.4
Cohabited single 0.4 0.2-0.6 0.83
Non-cohabited single 0.8 0.5-1.1 <0.001