Table 1. Quality indicators of anthropometric data. Children 0-59 months of age. SISVAN, Brazil, 2008-2017.
| Indicators | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| Total of registrations and followed-up children | ||||||||||
| Total number of children | 2,172,824 | 2,752,361 | 3,339,585 | 3,263,701 | 3,189,390 | 4,216,064 | 4,343,156 | 4,943,025 | 5,134,115 | 5,097,377 |
| Total of unique records | 3,612,015 | 5,134,933 | 5,987,400 | 6,446,453 | 6,252,667 | 7,894,213 | 7,822,944 | 9,756,986 | 10,357,127 | 10,480,285 |
| Total of duplicate records | 1,969,446 | 2,908,094 | 2,950,561 | 2,888,367 | 2,595,380 | 2,287,606 | 2,197,925 | 2,988,357 | 3,172,167 | 3,209,888 |
| Completeness | ||||||||||
| Coverage of the target population, SUS users (%) | 17.7 | 22.9 | 28.8 | 28.6 | 28.6 | 38.5 | 39.9 | 44.7 | 45.9 | 45,4 |
| Coverage of the total population, resident (%) | 14.3 | 18.3 | 22.5 | 22.2 | 21.8 | 28.9 | 29.8 | 33.7 | 34.9 | 34,6 |
| Completeness of birth date (%) | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 100 | 100 | 100 |
| Completeness of anthropometric measurements (%) | 100 | 99.9 | 100 | 100 | 100 | 100 | 100 | 100 | 98.8 | 100 |
| Sex ratio | ||||||||||
| Sex ratio | 1 | 1 | 1 | 1 | 0.8 | 0.8 | 0.9 | 1 | 1 | 1 |
| Age distribution | ||||||||||
| Dissimilarity Index for age in months (%) | 20.4 | 14.1 | 12.6 | 11.9 | 11.2 | 10.3 | 9.7 | 4.8 | 1.5 | 3.8 |
| Preference for height and weight digits | ||||||||||
| Index of dissimilarity for terminal digits of height (%) | 88.8 | 88 | 88.2 | 87.9 | 87.7 | 89.7 | 89.9 | 89.4 | 88.3 | 88.8 |
| Index of dissimilarity for terminal digits of weight (%) | 50.2 | 47 | 47.6 | 46.1 | 44.3 | 45.3 | 44.2 | 42.8 | 40.1 | 40.4 |
| Implausible z-score values | ||||||||||
| Implausible z-scores of H/A (%) | 3 | 3.4 | 3.8 | 3.4 | 3 | 3.3 | 3.5 | 3 | 2.9 | 1.9 |
| Implausible z-scores of W/H (%) | 2.4 | 2.4 | 2.7 | 2.5 | 2.5 | 3.3 | 3.2 | 3 | 2.4 | 2.2 |
| Implausible z-scores of W/A(%) | 2.1 | 1.6 | 1.9 | 1.8 | 1.7 | 2.5 | 2.4 | 2.1 | 1.2 | 0.8 |
| Implausible z-scores of BMI/A (%) | 3.9 | 4.1 | 4.6 | 4.2 | 3.9 | 4.8 | 4.8 | 4.2 | 3.1 | 2.9 |
| Dispersion of z-score values | ||||||||||
| Standard Deviation of H/A z-scores | 1.5 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| Standard deviation of W/H z-scores | 1.3 | 1.4 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Standard deviation of W/A z-scores | 1.2 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Standard deviation of BMI/A z-scores | 1.4 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Normality of z-score values | ||||||||||
| Skewness of H/A z-scores | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 |
| Skewness of W/H z-scores | 0 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | 0 | 0 |
| Skewness of W/A z-scores | 0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Skewness of BMI/A z-scores | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 |
| Kurtosis of H/A z-scores | 4.7 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.4 | 4.5 | 4.5 |
| Kurtosis of W/H z-scores | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 |
| Kurtosis of W/A z-scores | 4.3 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
| Kurtosis of BMI/A z-scores | 3.9 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 |
SISVAN: Food and Nutrition Surveillance System; H/A: Height/Age; W/H: Weight/Height; W/A: Weight/Age; BMI/A: Body Mass Index/Age.