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Trial Detail

CUHK_CCT00397

2014-02-28

Prospective

CRE-2013.683-T

Department of Paediatrics, CUHK

Department of Paediatrics, CUHK

N/A

Mr. Au Chun Ting

RM 94034, 7/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China

2632 2917

junau@cuhk.edu.hk

Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong

Prof. Albert Martin Li

Department of Paediatrics, 6/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, N.T.

2632 2982

albertmli@cuhk.edu.hk

Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong

A randomized controlled study of the effect of changes in bedtime on blood pressure in children and adolescents

Effect of bedtime changes on blood pressure in children and adolescents

改變睡眠時間對兒童及青少年的血壓之影響-隨機交叉研究

Effect of bedtime changes on BP

Hong Kong

Yes

2014-01-15

Sleep deprivation

Behavior

Subjects in group A will be instructed to extend their time in bed (TIB) by 1h from baseline in study week 1, and to further increase their TIB by another hour in study week 2. They will then be instructed to maintain the increased TIB for two more weeks (study weeks 3 and 4).

4 weeks

Subjects in group B will be instructed to maintain their time in bed (TIB) as in the baseline week for two more weeks (study weeks 1 and 2). They will then need to extend their TIB by 1h in study week 3 and further extend by another hour in study week 4.

1. Children and adolescents aged between 6-18 years;
2. Parent- or self-reported time in bed of <7 hours/night;
3. Normal weight (Body mass index <85th percentile of local norm);
4. Non-hypertensive (clinic BP <95th percentile of local norm);
5. Written informed consent and assent obtained from parents and children.

1. Diagnosis of a medical or psychiatric condition or use of current medication that may affect sleep and BP;
2. Parent reports habitual snoring (≥3 nights per week in the past 12 months).

6 years old

18 years old

Both Male and Female

Interventional

Randomized

Active

Single-blind

Parallel

2014-03-15

40

Unknown

24-hour ambulatory systolic and diastolic blood pressure at the end of study

Actigraphy measured sleep quantity and quality at the end of study

No

2015-04-01

ChiCTR-TRC-14004316 

2014-03-03

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