|
Tabla 2: Crecimiento ponderal en gramos, por periodos de tiempo. |
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|
Periodo (días) |
Pacientes con ECN |
Pacientes sin ECN |
p |
||
|
n |
Promedio (IC95%) |
n |
Promedio (IC95%) |
||
|
Nacimiento-3 |
3 |
−1.67 (−4.9 - 1.6) |
196 |
−19.9 (−30.8 - −9.1) |
0.002* |
|
3 a 7 |
14 |
66.4 (33.2 - 99.5) |
185 |
50 (37 - 63) |
0.500 |
|
7 a 10 |
23 |
58 (32.2 - 83.9) |
176 |
77.8 (67.2 - 88.3) |
0.210 |
|
10 a 14 |
38 |
66.2 (31.7 - 100.6) |
161 |
74.4 (62.8 - 88.8) |
0.580 |
|
14 a 18 |
45 |
88 (63.1 - 112.9) |
154 |
65 (53.2 - 76.8) |
0.070 |
|
18 a 21 |
52 |
44.1 (23.7 - 64.5) |
147 |
58.1 (47.7 - 68.5) |
0.200 |
|
21 a 28 |
56 |
124.8 (97.4 - 153.2) |
125 |
162.5 (146.8 - 178.2) |
0.010‡ |
|
28 a 35 |
56 |
122.1 (94.6 - 149.5) |
108 |
145.2 (137.5 - 152.8) |
0.110 |
|
35 a 50 |
45 |
287 (252.5 - 321.5) |
57 |
313.5 (286.0 - 340.9) |
0.250 |
|
ECN = enterocolitis necrosante. IC95% = intervalo de confianza de 95%. Prueba t Student: * Varianzas no iguales, ‡ Varianzas iguales. |
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