| | | Alzahra Hospital (follow-up care) ( = 509) | Taleqani Hospital (control) ( = 131) | | | Admitted/managed | Confidence intervals | Admitted/managed | Confidence intervals | | | % | (95%) | % | (95%) |
| | Cardiac problems | 2.2 | 0.8, 3.4 | 14.5 | 8.5, 20.6 () | | Blood pressure | 0 | 0.0, 0.0 | 0 | 0.0, 0.0 | | Gastroesophageal reflux | 21.6 | 18.0, 25.2 | 7.6 | 3.1, 12.2 () | | Bronchopulmonary dysplasia | 0.0 | 0.0, 0.0 | 0.0 | 0.0, 0.0 | | Respiratory syncytial virus | 0.2 | −0.1, 0.6 | 0.0 | 0.0, 0.0 | | Hypothyroidism | 9.4 | 6.9, 11.9 | 18.3 | 11.7, 24.9 | | Osteopenia | 5.3 | 3.4, 7.3 | 0.0 | 0.0, 0.0 | | Nutritional assessment | 0.0 | 0.0, 0.0 | 17.6 | 11.0, 24.1 | | Nephrocalcinosis | 2.2 | 0.8, 3.4 | 11.5 | 5.9, 16.9 () | | Renal tabular acidosis | 0.0 | 0.0, 0.0 | 2.3 | −0.3, 4.9 | | Anemia | 19.6 | 16.2, 23.1 | 3.1 | 0.1, 5.9 () | | Developmental dislocation of hip | 0.8 | 0.0, 1.6 | 0.0 | 0.0, 0.0 | | Oral health assessment | 0.0 | 0.0, 0.0 | 0 | 0.0, 0.0 | | Autism | 0.0 | 0.0, 0.0 | 0 | 0.0, 0.0 | | Child abuse | 0.0 | 0.0, 0.0 | 0 | 0.0, 0.0 | | Sleep disorders | 19.3 | 15.8, 22.7 | 9.2 | 4.2, 14.1 () | | Intraventricular hemorrhage | 0.0 | 0.0, 0.0 | 0.8 | −0.1, 2.3 | | Retinopathy | 2.8 | 1.3, 4.2 | 0.8 | −0.1, 2.3 | | Neurodevelopmental assessment | 8.3 | 5.9, 10.7 | 0.0 | 0.0, 0.0 | | Auditory assessment | 1.4 | 0.4, 2.4 | 0.0 | 0.0, 0.0 |
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