Cough and sleep in inner-city children

Area of Science:

• Pediatrics
• Sleep Medicine
• Respiratory Medicine

Background:

• Persistent nighttime cough is common in children.
• Understanding the impact of cough on pediatric sleep is crucial for effective management.
• Parental perception of cough and sleep disturbance requires investigation.

Purpose of the Study:

• To determine if nighttime cough disrupts children's sleep.
• To describe the relationship between cough frequency and sleep state in children.
• To assess parents' ability to perceive their child's cough and sleep disturbances.

Main Methods:

• Video-recording of 39 children with persistent nighttime cough for 6 nights.
• Objective quantification of coughs and coding of sleep states (awake, restless, quiet).
• Correlation and regression analyses to examine cough-sleep relationships; parental questionnaires on cough and sleep perception.

Main Results:

• A weak correlation was found between the number of coughs and the percentage of time spent awake or in restless sleep.
• A causal relationship suggests halving coughs could reduce awake time by 9% and awake/restless time by 1%.
• Parents accurately identified coughing but largely failed to assess sleep disturbance, despite 82% detecting changes.

Conclusions:

• Nighttime cough has a limited impact on the overall percentage of sleep disruption in children.
• While reducing cough may offer marginal sleep benefits, parental perception of sleep quality is unreliable.
• Further research is needed to understand the nuances of cough and sleep interactions in pediatric populations.