Table 2

Unstandardised factor loadings for the eight-dimensional model of preconception and interconception health risk factors in the full sample (n=1080)

Cluster 1Cluster 2Cluster 3Cluster 4Cluster 5Cluster 6Cluster 7Cluster 8
ThyroidFertilitySmokingDelivery outcomesMental healthPregnancy outcomesLow incomeHealth behaviours
Prescription medication1.41600.0010.0290.0130.0070.0250.025
Thyroid disease0.4510.2960.0120.0550.2820.0180.0980.055
ART use0.0140.6210.0450.1440.0050.0250.1710.105
Miscarriage0.0320.360.040.0730.0170.0980.1230.033
Complementary medication0.0180.3580.040.0090.0220.0250.1290.062
Cannabis use0.0970.0450.6540.0750.0450.0310.0110.128
Tobacco use0.0070.3650.5480.0210.0660.2070.1430.034
Preterm birth0.1890.1080.510.1710.0530.0130.1780.016
Planned c-section0.0110.0870.0130.8470.0360.020.0080.039
Unplanned c-section0.0090.0480.0250.6910.0290.3240.0190.063
High birth weight0.0210.0880.1660.2560.0940.0540.180.052
Depression0.0160.0990.050.0060.9850.0070.0780.027
Anxiety0.10.0900.0330.7920.0180.0410.02
Loneliness0.0170.0210.0960.0620.6180.0140.1390.015
BMI status0.0040.0120.040.0170.0620.7140.1830.013
Gestation diabetes0.0090.0220.3760.0210.0310.6780.0540.209
High pregnancy blood pressure0.0330.3190.2710.0290.0580.3680.0340.098
Over-the-counter medication0.1240.2040.0280.0290.0230.2580.1560.058
Asthma0.0450.2840.0660.0810.0880.2510.0530.161
Unemployment0.0010.0010.0060.0840.050.2680.8070.014
Low income0.0440.1170.1440.1330.0410.0080.5740.061
Frequent alcohol use0.0440.090.160.0570.2130.1160.4150.013
Fair/poor eating habits0.0050.0220.3540.0060.2020.020.0280.629
Low physical activity0.0340.0270.0450.0060.0940.0780.2240.533
  • Only risk factors prevalent in ≥5% of the sample were included in this model.

  • Shaded boxes represent the items that load onto each cluster

  • ART, artificial reproductive therapy; BMI, body mass index.