TABLE 2.
ODDS RATIOS (95% CONFIDENCE INTERVALS) FOR HYPERTENSION ACCORDING TO PLACENTAL WEIGHT, AREA AND DIAMETERS
| Placental measurements measurement | No. with hypertension | No. of subjects | Odds Ratio | 95% CI |
|---|---|---|---|---|
| Weight (g) | ||||
| −550 | 179 | 475 | 1.8 | 1.3 to 2.4 |
| −650 | 201 | 655 | 1.3 | 1.0 to 1.8 |
| −750 | 166 | 523 | 1.3 | 0.9 to 1.7 |
| >750 | 97 | 346 | 1.0 | baseline |
| p for trend* | <0.001 | |||
| Area (cm2) | ||||
| −200 | 82 | 232 | 1.5 | 1.0 to 2.2 |
| −240 | 171 | 537 | 1.2 | 0.8 to 1.7 |
| −280 | 158 | 498 | 1.2 | 0.8 to 1.6 |
| −320 | 152 | 468 | 1.1 | 0.8 to 1.6 |
| >320 | 75 | 258 | 1.0 | baseline |
| p for trend* | 0.009 | |||
| Lesser diameter (cm) | ||||
| −15 | 175 | 508 | 1.4 | 1.1 to 1.9 |
| −16 | 103 | 349 | 1.1 | 0.8 to 1.5 |
| −17 | 101 | 327 | 1.2 | 0.9 to 1.7 |
| −18 | 140 | 409 | 1.3 | 0.9 to 1.8 |
| >18 | 119 | 400 | 1.0 | baseline |
| p for trend* | 0.02 | |||
| Maximal diameter (cm) | ||||
| −15 | 115 | 332 | 1.3 | 0.9 to 1.8 |
| −16 | 135 | 394 | 1.3 | 0.9 to 1.7 |
| −17 | 79 | 296 | 0.8 | 0.6 to 1.2 |
| −18 | 175 | 535 | 1.1 | 0.8 to 1.4 |
| >18 | 134 | 436 | 1.0 | baseline |
| p for trend* | 0.02 | |||
*
adjusted for age, sex and adult waist circumference