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. 2020 Aug 5;39:e2019225. doi: 10.1590/1984-0462/2021/39/2019225

Table 3. Characterization and score of the methodological quality of the studies with evidence of association between short sleep duration and high blood pressure (BP).

Author (year) Local Design

  • Sample

  • Age group

Measurement method Sleep duration Adjustment variables Association between sleep duration and PA in adolescents Score*
Shaikh et al. 23 (2010)

  • Cross-sectional

  • India

  • n=489

  • 16-19 years old

  • Sleep: self-reported

  • BP: oscillometric

  • ≤7 h

  • > 7 h

 None There was no association between sleep duration and BP 3
Azadbakht et al. 28 (2013)

  • Cross-sectional

  • Iran

  • n=5,528

  • 10-18 years old

  • Sleep: reported by parents

  • BP: auscultatory

  • <5 h

  • 5-8 h

  • >8 h

 Sex, age, socio-economic status, parents’ education, BMI, family history of chronic diseases, and sedentary lifestyle. There was no significant association between sleep duration and BP 7

*Methodological quality score of the studies: low quality=0 to 3; moderate quality= 4 to 7 and high quality= 8 to 11.