Time point | Ethnicity | p-value * | |
---|---|---|---|
 | Caucasian | African - Caribbean | |
First Trimester | 340 | 335 | U = 247, p = 0.925 |
(267-512) | (302-430) | ||
Second Trimester | 600 | 665 | U = 2709, p = 0.225 |
(457-865) | (492-992) | ||
Third Trimester | 1000 | 1135 | U = 3541, p = 0.071 |
(715-1540) | (877-1687) | ||
Within a week of delivery | 2400 | 2350 | U = 505, p = 0.760 |
(1690-4250) | (1760-4610) | ||
≥ 8 weeks post-partum | 365 | 350 | U = 504, p = 0.750 |
(230-505) | (300-490) |