TABLE 2.

Interobserver precision of MUAC and length/height measurements of 21 groups of observers during anthropometry standardization sessions at 7 sites¹

Site and team		MUAC2				Length/height2
Site no.	Team no. (n = observers, children)	TEM (cm)	Relative TEM (%)	R	Repeatability	TEM (cm)	Relative TEM (%)	R	Repeatability
1	1-1 (n = 4, 16)	0.22	1.57	0.977	0.62	0.40	0.48	0.999	1.11
1	1-2 (n = 3, 16)	0.15	1.17	0.989	0.42	0.33	0.41	0.999	1.00
1	1-3 (n = 4, 16)	0.42	3.09	0.919	1.16	0.26	0.34	0.999	0.72
2	2-1 (n = 4, 16)	0.18	1.29	0.985	0.50	1.04	1.04	0.990	2.87
2	2-2 (n = 3, 16)	0.29	2.03	0.960	0.82	0.14	0.17	1.000	0.40
2	2-3 (n = 4, 16)	0.10	0.70	0.995	0.28	0.49	0.59	0.998	1.35
3	3-1 (n = 4, 16)	0.19	1.40	0.983	0.54	0.38	0.46	0.999	1.04
3	3-2 (n = 4, 16)	0.11	0.80	0.995	0.29	0.37	0.47	0.999	1.02
3	3-3 (n = 4, 16)	0.28	2.11	0.963	0.79	0.56	0.74	0.997	1.56
4	4-1 (n = 4, 16)	0.14	1.03	0.991	0.39	0.64	0.64	0.996	1.78
4	4-2 (n = 4, 16)	0.18	1.30	0.984	0.51	0.11	0.14	1.000	0.31
4	4-3 (n = 3, 16)	0.09	0.64	0.997	0.24	0.06	0.07	1.000	0.16
5	5-1 (n = 4, 16)	0.11	0.79	0.995	0.30	0.27	0.34	0.999	0.76
5	5-2 (n = 4, 16)	0.16	1.22	0.988	0.46	0.37	0.46	0.999	1.03
5	5-3 (n = 4, 16)	0.16	1.18	0.988	0.45	0.64	0.81	0.996	1.78
6	6-1 (n = 4, 16)	0.43	3.06	0.913	1.20	2.98	3.49	0.921	8.25
6	6-2 (n = 4, 16)	0.27	1.89	0.967	0.74	0.75	0.86	0.995	2.07
6	6–3 (n = 2, 16)	0.21	1.56	0.980	0.58	0.75	0.88	0.995	2.07
7	7-1 (n = 4, 16)	0.10	0.74	0.995	0.27	0.37	0.43	0.999	1.02
7	7-2 (n = 4, 16)	0.21	1.54	0.980	0.58	1.19	1.51	0.987	3.31
7	7-3 (n = 4, 16)	0.23	1.70	0.976	0.64	0.23	0.28	1.000	0.65
	All, mean ± SD (n = 21, 336)	0.20 ± 0.10	1.47 ± 0.68	0.977 ± 0.02	0.56 ± 0.27	0.59 ± 0.62	0.70 ± 0.72	0.994 ± 0.02	1.63 ± 1.71

¹MUAC, midupper arm circumference; TEM, technical error of measurement.

²Based on the Multicentre Growth Reference Study, WHO recommends maximum allowable differences between measurements of 0.5 cm for circumferences and 0.7 cm for length/height (4).