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Table 4 Subgroup data for each weight estimation system

From: The accuracy of emergency weight estimation systems in children—a systematic review and meta-analysis

  System Subgroup   Mean percentage error Lower limit of agreement Upper limit of agreement Number of children (number of studies) PW10 Number of children (number of studies)
  APLS formula (new) Age < 1 FE
RE
19.4
8.2
−30.7
−54.5
69.4
70.8
5388 (2) 23.5
30.2
5700 (4)
Age 1–5 FE
RE
−6.0
−8.2
−45.2
−53.6
33.3
37.2
4438 (3) 37.3
35.0
8941 (5)
Age 6–12 FE
RE
7.3
3.8
−50.7
−56.2
65.2
63.8
2462 (3) 23.3
29.9
26,338 (5)
ARC formula Age 1–5 FE
RE
−10.1
−9.8
−39.4
−39.0
19.2
19.4
1415 (2) 43.4
44.2
1415 (2)
Age 6–10 FE
RE
−12.4
−12.5
−53.4
−53.5
28.5
28.6
1405 (2) 33.2
33.3
1405 (2)
Argall formula Age 1–5 FE
RE
3.8 −30.1 37.7 609 (1) 34.1
30.2
884 (2)
Age 6–10 FE
RE
6.8 −36.9 50.5 639 (1) 27.8
25.0
741 (2)
Best Guess formula Age < 1 FE
RE
2.4
4.1
−42.8
−43.9
47.6
52.1
20,846 (5) 33.7
38.4
21,083 (7)
Age 1–5 FE
RE
5.0
5.1
−24.0
−20.0
34.1
30.2
46,271 (7) 48.8
44.1
50,774 (9)
Age 6–14 FE
RE
6.7
9.9
−32.5
−37.8
45.9
57.5
67,028 (6) 32.2
31.4
99,475 (9)
Chinese age-weight rule 1 Age 1–5 FE
RE
−12.2
−9.6
−51.3
−45.8
26.8
26.6
1865 (2) 33.0
35.5
1865 (2)
Age 6–10 FE
RE
−2.6
−1.5
−50.1
−47.5
44.9
44.5
1636 (2) 32.5
32.1
1636 (2)
Chinese age-weight rule 2 Age 1–5 FE
RE
−1.9
−0.9
−33.9
−32.7
30.0
30.9
1865 (2) 49.1
48.0
1865 (2)
Age 6–10 FE
RE
−4.9
−3.8
−52.1
−49.5
42.3
41.9
1636 (2) 33.9
33.3
1636 (2)
EPLS formula Age 1–5 FE
RE
−12.7
−9.9
−43.4
−42.6
18.0
22.9
91,652 (11) 37.9
41.5
96,077 (12)
Age 6–10 FE
RE
−18.3
−19.4
−61.7
−63.8
25.0
24.9
101,742 (11) 29.0
28.1
116,988 (12)
Leffler formula Age < 1 FE
RE
−5.7
8.8
−46.1
−42.8
34.7
60.4
20,325 (2) 36.6
27.7
20,325 (2)
Age 1–5 FE
RE
4.2
5.8
−23.4
−25.4
31.8
37.0
41,603 (3) 50.3
43.8
41,603 (3)
Age 6–10 FE
RE
−5.0
−11.0
−39.1
−45.6
29.1
23.6
64,426 (3) 42.0
31.9
64,426 (3)
Luscombe formula Age 1–5 FE
RE
−3.3
2.4
−36.7
−32.5
30.1
37.3
47,602 (4) 43.0
37.7
52,482 (7)
Age 6–10 FE
RE
1.2
8.5
−45.3
−35.7
47.8
52.6
34,663 (4) 28.3
28.9
67,435 (7)
Nelson formula Age < 1 FE
RE
−8.1
−3.5
−33.2
−29.2
16.9
22.2
20,217 (2) 47.9
51.1
20,217 (2)
Age 1–5 FE
RE
−9.1
−5.7
−32.9
−32.1
14.7
20.7
42,960 (3) 47.2
51.8
42,960 (3)
Age 6–10 FE
RE
−10.6
−9.4
−41.9
−46.5
20.7
27.7
64,268 (2) 38.7
37.2
64,268 (2)
Park formula Age < 1   2.3 −42.8 47.4 19,854 (1) 33.5 19,854 (1)
Age 1–5   −2.7 −28.0 22.6 40,612 (1) 55.2 40,612 (1)
Age 6–10   2.7 −34.7 40.1 63,629 (1) 39.6 63,629 (1)
Shann formula Age 1–5 FE
RE
−2.7
−2.1
−28.1
−31.0
22.7
26.8
41,221 (2) 55.1
53.0
41,221 (2)
Age 6–10 FE
RE
−12.4
−11.8
−46.2
−50.5
21.4
26.9
64,268 (2) 34.8
35.0
64,268 (2)
Theron formula Age 1–5   8.2 −27.1 43.5 609 (1) 36.8 609 (1)
Age 6–10   30.7 −12.6 74.0 639 (1) 13.5 639 (1)
Dual length- and habitus based methods Devised weight estimating method <10 kg FE
RE
4.0
3.7
−21.9
−21.5
29.9
28.9
221 (2) 52.7
52.5
221 (2)
10-25 kg FE
RE
1.2
1.3
−17.7
−17.8
20.1
20.3
232 (2) 70.2
69.6
232 (2)
>25 kg FE
RE
−4.9
−4.4
−31.9
−30.5
22.2
21.7
332 (2) 54.0
53.5
431 (2)
PAWPER tape <10 kg FE
RE
3.3
2.7
−13.8
−10.7
20.4
16.1
765 (4) 75.6
71.6
783 (5)
10-25 kg FE
RE
−0.2
0.5
−13.7
−11.2
13.2
12.2
1022 (4) 86.2
85.5
1010 (4)
>25 kg FE
RE
−2.4
−0.5
−21.7
−17.0
16.9
16.0
996 (4) 77.1
76.8
1070 (5)
Mercy Method <10 kg FE
RE
−1.3
−3.8
−25.1
−25.3
22.6
17.7
103 (2) 62.9
60.0
121 (3)
10-25 kg FE
RE
−3.9
−4.4
−20.4
−20.0
12.6
11.2
218 (2) 74.3
73.0
296 (3)
>25 kg FE
RE
−4.9
−4.3
−19.7
−18.2
9.9
9.6
311 (2) 71.1
73.4
414 (3)
Wozniak method <10 kg FE
RE
−21.7
−23.7
−63.7
−62.4
20.3
15.0
103 (2) 29.1
23.5
103 (2)
10-25 kg FE
RE
0.8
0.8
−31.9
−31.6
33.5
33.1
218 (2) 69.5
68.0
218 (2)
>25 kg FE
RE
−1.3
−0.7
−19.8
−17.6
17.2
16.2
311 (2) 78.8
81.3
311 (2)
Broselow tape <10 kg FE
RE
−4.4
−1.2
−29.3
−19.7
20.5
17.4
26,327 (13) 55.2
53.0
27,345 (19)
10-25 kg FE
RE
−3.8
−1.3
−22.8
−18.9
15.1
16.3
51,915 (15) 66.4
60.7
57,102 (19)
>25 kg FE
RE
−5.3
−2.8
−29.2
−23.9
18.6
18.2
72,803 (14) 59.7
49.9
97,639 (22)
Other MAC formula Age 1–5 FE
RE
23.1
21.3
−8.3
−9.0
54.4
51.5
1618 (2) 17.2
20.1
1618 (2)
Age 6–10 FE
RE
0.1
0.0
−39.8
−37.3
40.0
37.4
1882 (2) 55.5
55.4
1882 (2)
  1. The outcome data for the pooled data (not separated into high-income and low- and middle-income populations) is shown with both random effects (RE) and fixed effects (FE) results