Table 1.
Characteristics of studies included in data extraction process.
| Author | Year | Country | Population Sampling |
Recruitment Site |
Rome IV Completion | Cohort Number |
Age | Gender |
|---|---|---|---|---|---|---|---|---|
| * Aydemir [9] | 2020 | Turkey | Matched controls |
- | Researcher | 78 | - | 53% F |
| Beser [10] | 2019 | Turkey | Random sampling |
Regional out-patient clinics | Physician | 2383 | Range 0 to 12 m | - |
| Chanis [11] | 2019 | Panama | Random sampling |
One well-child clinic | Parent | 65 | Mean 6.9 m (SD 3.9) | 44.6% F |
| Chew [12] | 2021 | Malaysia | Whole population |
Regional well-baby clinics | Parent | 534 | Mean 6.8 m (SD 3.4) Range 1 to 12 m |
54.1% F |
| Chikunov [13] | 2019 | Russia | Random sampling |
One University clinic | Unclear | 300 0–6 m: 180 7 m−4 y: 120 |
Range 0 to 4 y | Age 0–6 m 38.9% F Age 7 m−4 y 58.3% F |
| * Ekinci [14] | 2019 | Turkey | Matched controls |
- | Child/family | 100 | Mean 9.7 (SD 3.6) Range 4 to 18 y |
34% F |
| * Ekinci [15] | 2019 | Turkey | Matched controls |
- | Unclear | 78 | Median 9.2 y (IQR 4.5–17.7) Range 4 to 18 y |
33% F |
| Jativa-Marino [16] | 2019 | Ecuador | Random sampling |
Regional schools | Child | 951 | Mean 11.2 y (SD 1.8) | 39.3% F |
| Llanos-Chea [17] | 2019 | Colombia | Random sampling |
Regional well-child clinics | Parent | 815 | Mean 17.6 m Range 1 to 48 m |
- |
| Ozdemir [18] | 2018 | Turkey | Random sampling |
One out-patient clinic | Unclear | 481 | Range 0 to 12 m | - |
| Robin [19] | 2018 | United States | Random but mothers only |
Internet survey | Mother | 1255 0–12 m: 58 1–3 y: 238 4–18 y: 959 |
Mean 8.35 y Range 0 to 18 y |
53.2% F |
| Saps [20] | 2018 | Colombia | Random sampling |
Regional schools | Child | 3567 | Mean 13.7 y (SD 2.4) | 56.5% F |
| Saps [21] | 2020 | Colombia | Random sampling |
Regional out-patient clinics | Parent | 1334 0–12 m: 389 13–48 m: 945 |
Mean 24.4 m (SD 15) | 51% F |
| Steutel [22] | 2020 | Belgium Italy Netherlands |
Random sampling |
Regional well-child clinics | Researcher | 2751 0–12 m: 1698 13–48 m: 1053 |
Age 0–1 m: Median 4.1 m (IQR 2.1–7.5) Age 13–48 m: Median 26.4 m (IQR 18.7–38.7) |
Age 0–1 m 47.4% F Age 13–48 m 48.2% F |
| Velasco-Benitez [23] | 2018 | Colombia | Random sampling |
One school | Child | 330 | Range 10 to 18 y | 50.3% F |
| Velasco-Benitez [24] | 2019 | Colombia | Random sampling |
- | Parents | 1298 | Mean 24.9 m (SD 15.1) | 51.2% F |
| Velasco-Benitez [25] | 2020 | Colombia | Random sampling |
Regional schools | Child/family | 1497 | Mean 13.4 y (SD 2.1) Range 10 to 18 y |
71% F |
| Velasco-Benítez [26] | 2021 | Colombia | Random sampling |
Regional schools | Child | 465 | Mean 12.9 y (SD 1.3) Range 10 to 18 y |
48.2% F |
| Vlad [27] | 2019 | Romania | Random sampling |
Regional family clinics | Unclear | 308 0–12 m: 174 1–3 y: 134 |
Mean 12.2 m Range 0 to 3 y |
- |
| Zeevenhooven [28] | 2019 | Netherlands | Selected cohort |
Follow up clinic | Child/family | 102 | Median 17 y (IQR 17–17) |
56% F |
m = months, y = years, F = female, - = not reported, * = data on controls presented only.