TABLE 2.

Effect of Intervention on Weight (g)

AgeControl (n)Experimental (n)DifferenceP Value
1 mo4280 (8062)4341 (8630)61.001
2 mo5170 (7961)5258 (8459)88<.001
3 mo6047 (8009)6153 (8620)106<.001
6 mo8042 (7896)8131 (8509)89<.001
9 mo9451 (7750)9509 (8339)58.002
12 mo10571 (7918)10564 (8553)−7.726