Introduction
Methodology
Study area
Study participants
Measures
Sample size calculation
Data collection and statistical analysis
Result
Characteristics of study participants
Study parameter | Variables | Frequency (n) | Percentage (%) |
---|---|---|---|
Age of respondentsa (N = 1456) | 1 year | 84 | 5.8 |
2 years | 104 | 7.1 | |
3 years | 87 | 6.0 | |
4 years | 68 | 4.7 | |
5 years | 44 | 3.0 | |
6 years | 120 | 8.2 | |
7 years | 239 | 16.4 | |
8 years | 222 | 15.2 | |
9 years | 239 | 15.9 | |
10 years | 174 | 12.0 | |
11 years | 57 | 3.9 | |
12 years | 25 | 1.7 | |
Gender (N = 1456) | Male | 669 | 45.9 |
Female | 787 | 54.1 | |
Socio-economic class (N = 1455) | High | 397 | 27.3 |
Middle | 439 | 30.2 | |
Low | 619 | 42.5 | |
BMIb Z-Score Category (N = 1452) | Severe thinness | 18 | 1.2 |
Thinness | 49 | 3.4 | |
Normal | 1226 | 84.2 | |
Overweight | 97 | 6.7 | |
Obesity | 66 | 4.5 |
Variables | Broselow estimation | Actual weight | Mean difference | Confidence interval | ||
---|---|---|---|---|---|---|
N | Mean ± SDa | N | Mean ± SD | ± SD | ||
Age category | ||||||
1 year | 84 | 10.81 ± 1.18 | 84 | 10.57 ± 1.75 | 0.25 ± 1.10 | −0.01, 0.48 |
2 years | 104 | 13.62 ± 1.55 | 104 | 13.54 ± 1.97 | 0.08 ± 1.54 | − 0.22, 0.38 |
3 years | 87 | 15.75 ± 1.96 | 87 | 15.55 ± 2.39 | 0.21 ± 1.49 | − 0.11, 0.53 |
4 years | 68 | 18.68 ± 2.20 | 68 | 18.52 ± 2.77 | 0.17 ± 2.01 | − 0.33, 0.66 |
5 years | 44 | 20.52 ± 2.53 | 44 | 20.71 ± 3.36 | −0.19 ± 2.15 | −0.85, 0.46 |
6 years | 120 | 23.80 ± 3.25 | 120 | 23.02 ± 3.75 | 0.78 ± 2.49 | 0.33, 1.23 |
7 years | 239 | 26.64 ± 3.86 | 239 | 25.10 ± 4.56 | 1.54 ± 3.34 | 1.11, 1.96 |
8 years | 222 | 28.61 ± 4.12 | 222 | 26.97 ± 4.97 | 1.63 ± 3.38 | 1.19, 2.08 |
9 years | 232 | 31.16 ± 3.33 | 232 | 28.87 ± 4.74 | 2.29 ± 3.88 | 1.79, 2.79 |
10 years | 174 | 32.10 ± 3.18 | 174 | 29.76 ± 4.45 | 2.34 ± 3.91 | 1.84, 2.84 |
11 years | 57 | 33.19 ± 2.97 | 57 | 30.17 ± 4.74 | 3.02 ± 3.91 | 1.98, 4.06 |
12 years | 25 | 33.44 ± 3.24 | 25 | 31.76 ± 5.42 | 1.68 ± 4.16 | 0.04, 3.40 |
Overall | 1456 | 25.40 ± 7.55 | 1456 | 24.01 ± 7.30 | 1.39 ± 3.19 | 1.23, 1.56 |
Accuracy and level of agreement between measured and estimated weights
Age variable | Mean Percentage Error (%)a | Confidence interval of MPE (%) | ||
---|---|---|---|---|
Standard deviation | Lower | Upper | ||
1 year | 3.88 | 12.42 | - 20.46 | 28.22 |
2 years | 1.58 | 11.48 | - 20.92 | 24.08 |
3 years | 2.13 | 9.49 | - 16.47 | 20.73 |
4 years | 1.94 | 10.98 | −19.58 | 23.46 |
5 years | 0.07 | 9.79 | −19.12 | 19.25 |
6 years | 4.25 | 10.48 | −16.29 | 24.79 |
7 years | 9.25 | 40.39 | - 69.91 | 88.41 |
8 years | 7.29 | 11.71 | - 15.66 | 30.24 |
9 years | 9.29 | 12.15 | −14.52 | 33.10 |
10 years | 9.18 | 12.51 | - 15.34 | 33.70 |
11 years | 11.61 | 13.54 | - 14.93 | 38.15 |
12 years | 6.75 | 11.67 | - 16.12 | 29.62 |
Overall | 6.67 | 19.75 | - 32.04 | 45.38 |
Age (years) | N | Estimated weight AGREEMENT with measured weight | |
---|---|---|---|
Within ±10% | Within ±20% | ||
1 | 84 | 62 (73.8) | 77 (96.7) |
2 | 104 | 70 (67.3) | 96 (92.3) |
3 | 87 | 61 (70.1) | 82 (94.3) |
4 | 68 | 44 (64.7) | 61 (89.7) |
5 | 44 | 31 (70) | 41 (93.2) |
6 | 120 | 80 (66.7) | 113 (94.2) |
7 | 239 | 141 (59.0) | 211 (88.3) |
8 | 222 | 119 (53.6) | 185 (83.9) |
9 | 232 | 100 (43.1) | 191 (82.3) |
10 | 174 | 89 (51.1) | 196 (83.9) |
11 | 57 | 24 (42.1) | 44 (77.2) |
12 | 25 | 10 (40.0) | 22 (88.0) |
Overall | 1456 | 831 (57.1) | 1269 (87.2) |