The placental weight for small for gestational age infants are lower than those for infants showing normal development. The weights tend to increase with increasing gestational age.
|
week gestation |
placenta weight low |
mean placenta weight |
placenta weight high |
+/- placenta |
|
27 |
134 |
136.5 |
139 |
2.48 |
|
28 |
115.3 |
154.9 |
194.5 |
39.64 |
|
29 |
178.2 |
178.2 |
178.2 |
|
|
30 |
183.7 |
208.3 |
232.9 |
24.57 |
|
31 |
219.7 |
241.7 |
263.8 |
22.05 |
|
32 |
194.2 |
195 |
195.8 |
0.81 |
|
33 |
224.1 |
260 |
295.9 |
35.9 |
|
34 |
199.4 |
211.5 |
223.7 |
12.15 |
|
35 |
266.1 |
292.5 |
318.9 |
26.4 |
|
36 |
278.8 |
294.8 |
310.8 |
16.04 |
|
37 |
291.1 |
322.4 |
353.7 |
31.33 |
|
38 |
307.5 |
315.3 |
323.2 |
7.85 |
|
39 |
294 |
305.1 |
316.2 |
11.06 |
|
40 |
301.7 |
309.7 |
317.7 |
8.04 |
|
41 |
317.8 |
332.3 |
346.8 |
14.52 |
|
42 |
302.5 |
328.6 |
354.7 |
26.07 |
Specialty: Obstetrics & Gynecology, Pedatrics
