Modified Tal (M-Tal) Score as a Predictor of Outcomes in Infants with Bronchiolitis: A Prospective Study

Bronchiolitis is the leading cause of hospitalization among infants, and early prediction of disease severity and clinical outcomes remains challenging. The Modified Tal (M-Tal) score is a clinical tool used to assess severity; however, its utility in predicting outcomes requires further validation.

This prospective study was conducted over a 2-year period at a tertiary care teaching hospital. Infants aged 1-12 months diagnosed with moderate-to-severe bronchiolitis were enrolled. Demographic, clinical, management, and outcome data were recorded.

A total of 120 infants were included (mean age 7.7 months; 61.7% males). Moderate bronchiolitis accounted for 81.7% of cases. The mean duration of illness at admission was 4.1 days. Severe bronchiolitis was associated with significantly longer duration of oxygen therapy (p = 0.034) and hospital stay (p = 0.028). Each one-point increase in M-Tal score was associated with an increase of 0.69 days in hospital stay (p = 0.012), 9.8 h in oxygen requirement (p < 0.01), and 0.32 days in PICU stay (p = 0.04).

The M-Tal score at admission is a useful predictor of clinical outcomes in infants with moderate-to-severe bronchiolitis. Higher scores are associated with increased need for respiratory support and prolonged hospitalization, supporting its role in early risk stratification and management planning.