Table 3. Comparison of Z scores between admission and discharge.

Z score	Cases	At admission	At discharge	t	P
WAZ	289	–1.50±1.87	–1.74±1.86	8.479	0.000
HAZ	289	–1.52±1.93	–1.75±1.95	6.913	0.000
WHZ	289	–0.48±1.86	–0.54±1.91	1.650	0.100
BAZ	71	–0.56±1.90	–0.88±2.04	6.338	0.000

HAZ, WAZ and WHZ used for patients under 5 years old; BAZ used for patients older than 5 years old. WAZ, weight-for-age Z score; HAZ, length/height-for-age Z score; WHZ, weight-for-height Z score; BAZ, body mass index-for-age Z score.