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Development of nocturnal urinary control in Chinese children younger than 8 years old

Jian Guo Wen1, Qing Wei Wang, Jian Jun Wen

  • 1Department of Pediatric Surgery, Pediatric Urodynamic Centre, First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan, China. jgwen@zzu.edu.cn

Urology
|November 23, 2006
PubMed

Insights

Nocturnal urinary control (NUC) develops significantly between ages 2 and 3 in Chinese children. By age 5, nearly 90% achieve NUC, with girls developing it earlier than boys.

Area of Science:

  • Pediatrics
  • Urology
  • Child Development

Background:

  • Nocturnal urinary control (NUC) is a critical developmental milestone in children.
  • Understanding the age-specific development of NUC is essential for identifying potential issues and guiding interventions.

Purpose of the Study:

  • To estimate the age-specific development of nocturnal urinary control (NUC) in Chinese children younger than 8 years.
  • To analyze factors influencing NUC development, including age, sex, and family history.

Main Methods:

  • Cross-sectional survey of 4754 children (1-8 years) and retrospective investigation of 2745 children (<9 years).
  • Data collected via anonymous questionnaires, with response rates of 90% and 89% respectively.
  • Children without NUC categorized into infant, preschool, and primary school age groups.

Main Results:

  • Prevalence of NUC reached 76% by ages 2-3 and 93% by age 8 in the cross-sectional survey.
  • Retrospective data showed 72% achieved NUC by ages 2-3 and 98% by age 8.
  • Girls achieved NUC earlier than boys; arousal difficulty and family history were noted in children with nocturnal wetting.

Conclusions:

  • The peak period for achieving nocturnal urinary control (NUC) is between 2 and 3 years of age.
  • Approximately 90% of children attain NUC by age 5.
  • Infants showed greater severity of bedwetting and arousal difficulty compared to older children.
Abstract

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