Table 2.
Changes in SBP and DBP, and incidence of elevated BP/hypertension over the 2‐year follow‐up according to sleep duration categories defined at baseline
| Sleep duration | |||||
|---|---|---|---|---|---|
| ≤9h | >9 h to ≤10 h | >10 h to ≤11 h | >11 h | P | |
| Δ SBP (mm Hg) | 3.6 (3.1;4.2) | 3.5 (3.2;3.9) | 2.0 (1.6;2.3) | 0,4 (−0.1;1.0) | <0.001* |
| Δ DBP (mm Hg) | 0.9 (0.5;1.4) | 0.9 (0.7;1.2) | 0.3 (0.0;0.5) | −0.5 (−0.9;‐0.1) | <0.001* |
| Incidence % (N) | 12.4 (67) | 11.2 (165) | 8.5 (137) | 6.0 (41) | χ2 ≤ 0.001 # |
Data are expressed as mean (95% confidence interval) or as frequency (%).
ΔDBP, change in diastolic blood pressure; ΔSBP, change in systolic blood pressure.
*
Pvalue for trend by multiple regression analysis adjusted for age, sex, BMI z‐score, country of origin, physical activity, screen time, parental education, and basal value of the examined variables.
#
P by Linear‐by‐linear association.