Table 1.

50th percentiles (median) values of weight(kg)-for-age(mo.) by both non-parametric quantile regression (NQR) estimation method and WHO standard values for boys and girls

	Boys		Girls			Boys		Girls
Age	Northeast of Iran	WHO	Northeast of Iran	WHO	Age	Northeast of Iran	WHO	Northeast of Iran	WHO
0	3.14	3.3	3.00	3.2	30	12.57	13.3	12.00	12.7
1	4.44	4.5	4.00	4.2	31	12.71	13.5	12.17	12.9
2	5.34	5.6	4.90	5.1	32	12.85	13.7	12.33	13.1
3	6.14	6.4	5.80	5.8	33	13.01	13.8	12.50	13.3
4	6.80	7	6.25	6.4	34	13.17	14	12.67	13.5
5	7.24	7.5	6.64	6.9	35	13.33	14.2	12.82	13.7
6	7.67	7.9	7.08	7.3	36	13.50	14.3	12.95	13.9
7	8.00	8.3	7.40	7.6	37	13.65	14.5	13.09	14
8	8.30	8.6	7.70	7.9	38	13.77	14.7	13.25	14.2
9	8.60	8.9	8.02	8.2	39	13.88	14.8	13.38	14.4
10	8.90	9.2	8.29	8.5	40	14.00	15	13.48	14.6
11	9.17	9.4	8.55	8.7	41	14.13	15.2	13.61	14.8
12	9.40	9.6	8.78	8.9	42	14.25	15.3	13.73	15
13	9.62	9.9	9.01	9.2	43	14.38	15.5	13.85	15.2
14	9.84	10.1	9.21	9.4	44	14.50	15.7	13.97	15.3
15	10.04	10.3	9.40	9.6	45	14.63	15.8	14.10	15.5
16	10.20	10.5	9.60	9.8	46	14.75	16	14.23	15.7
17	10.42	10.7	9.80	10	47	14.88	16.2	14.36	15.9
18	10.62	10.9	10.00	10.2	48	15.00	16.3	14.50	16.1
19	10.81	11.1	10.20	10.4	49	15.14	16.5	14.63	16.3
20	11.00	11.3	10.40	10.6	50	15.29	16.7	14.75	16.4
21	11.18	11.5	10.60	10.9	51	15.43	16.8	14.88	16.6
22	11.35	11.8	10.80	11.1	52	15.57	17	15.00	16.8
23	11.53	12	11.00	11.3	53	15.71	17.2	15.11	17
24	11.70	12.2	11.20	11.5	54	15.86	17.3	15.25	17.2
25	11.86	12.4	11.17	11.7	55	16.00	17.5	15.36	17.3
26	12.00	12.5	11.33	11.9	56	16.14	17.7	15.50	17.5
27	12.14	12.7	11.50	12.1	57	16.30	17.8	15.67	17.7
28	12.29	12.9	11.67	12.3	58	16.50	18	15.90	17.9
29	12.43	13.1	11.83	12.5	59	16.67	18.2	16.20	18