Table 4 Pre-existing medical conditions.
Control (≥37 weeks' gestation) | Preterm (<35 weeks' gestation) | P value | |||
|---|---|---|---|---|---|
Number of deliveries | 553 | 228 | |||
Anaemia | 103 (18.6%) | 45 (19.7%) | 0.72 | ||
Respiratory problems | 89 (16.1%) | 39 (17.1%) | 0.73 | ||
Depression/Psychiatric Disease | 83 (15.0%) | 50 (21.9%) | 0.019 | ||
Hypertension | 51 (9.2%) | 34 (14.9%) | 0.020 | ||
Renal Disease | 34 (6.1%) | 18 (7.9%) | 0.37 | ||
Sexually transmitted diseases | 33 (6.0%) | 16 (7.0%) | 0.58 | ||
Cardiac disease | 24 (4.3%) | 9 (3.9%) | 0.80 | ||
Thyroid Disease | 14 (2.5%) | 3 (1.3%) | 0.29 | ||
IVF | 12 (2.2%) | 6 (2.6%) | 0.70 | ||
Diabetes | 11 (2.0%) | 3 (1.3%) | 0.52 | ||
Hepatitis B | 10 (1.8%) | 5 (2.2%) | 0.72 | ||
Bleeding disorders | 8 (1.4%) | 3 (1.3%) | >0.99* | ||
Uterine abnormalities | 10 (1.8%) | 14 (6.1%) | 0.001 | ||
Cervical incompetence/cervical suture | 0 | 5 (2.2%) | 0.002* | ||