Predictive validity and cut-off point of the Turkish version of the Infant Colic Scale in the diagnosis of colic

• Published in: Jornal de pediatria Vol. 99; no. 2; pp. 133 - 138
• Main Authors: Dönmez, Renginar Öztürk, Temel, Ayla Bayik, Koç, Feyza
• Format: Journal Article
• Language: English; Portuguese
• Published: Brazil Elsevier Editora Ltda 01.03.2023; Elsevier; Sociedade Brasileira de Pediatria
• Subjects: Child; Colic; Cut-off value; Female; Humans; Infant; Infant Colic Scale; Original; PEDIATRICS; Predictive validity; Predictive Value of Tests; Reproducibility of Results; ROC Curve; Sensitivity and Specificity; Turkey; Turkey; Cut-off value; Predictive validity; Infant Colic Scale
• ISSN: 0021-7557; 1678-4782; 1678-4782
• DOI: 10.1016/j.jped.2022.07.005

To investigate the predictive validity and cut-off point of the Turkish version of the Infant Colic Scale (ICS) in the diagnosis of colic. This methodological study was carried out in a pediatric outpatient clinic of a university hospital in Turkey with infants aged 6–16 weeks (n = 133). The data were collected using the Mother-Infant Description Form, the ICS, and the Rome IV criteria form. The scale is a 6-point Likert-type scale consisting of 19 items in total. A low total mean score obtained from it indicates that the probability of colic increases, while a high mean score indicates that the probability of colic decreases. The Rome IV criteria were used as the gold standard. The mean score obtained from the ICS was 59.4 ± 13.7. According to the Rome IV criteria, 26.3% of the infants had colic. The area under the ROC curve was 87.4% (95% CI = 0.815–0.934, SE = 0.30, p = 0.001), and the cut-off point for the best sensitivity value (88.6%) and the best specificity value (70.5%) of the ICS was determined to be 60.5. According to the cut-off point, the positive predictive value was 51%, and the negative predictive value was 94%. The predictive validity of the Turkish version of the ICS was found to be at a good level with high sensitivity and acceptable specificity for a cut-off point of 60.5. Healthcare professionals working in the child field can use the ICS to exclude colic in infants.