Key result
Living in occupant-owned housing, compared to temporary housing, significantly increased the risk of experiencing an extreme winter morning surge in systolic blood pressure (OR 2.58).
Why the study?
This study investigated the association between winter morning surge in systolic blood pressure and housing conditions in an area damaged by the Great East Japan Earthquake.
Does living in occupant-owned housing compared to temporary housing increase winter morning surge in systolic blood pressure among elderly hypertensive patients after a disaster?
Observational (n=412)
No
Does living in occupant-owned housing compared to temporary housing increase winter morning surge in systolic blood pressure among elderly hypertensive patients after a disaster?
Odds Ratio: 2.58 (95% CI 1.29–5.16)
p-value: p=0.007
Elderly hypertensive patients living in older, occupant-owned homes after a disaster are at higher risk for exaggerated winter morning blood pressure surges compared to those in modern temporary housing, highlighting the need for well-insulated housing.
Owner-occupied housing may heighten winter BP surge risk; hypothesis-generating and should not yet change practice.
This study investigated the association between winter morning surge in systolic blood pressure (SBP) as measured by ambulatory BP monitoring and the housing conditions of subjects in an area damaged by the Great East Japan Earthquake. In 2013, 2 years after disaster, hypertensives who lived in homes that they had purchased before the disaster (n = 299, 74.6 ± 8.1 years) showed significant winter morning surge in SBP (+5.0 ± 20.8 mmHg, P < 0.001), while those who lived in temporary housing (n = 113, 76.2 ± 7.6 years) did not. When we divided the winter morning surge in SBP into quintiles, the factors of age ≥75 years and occupant-owned housing were significant determinants for the highest quintile (≥20 mmHg) after adjustment for covariates. The hypertensives aged ≥75 years who lived in their own homes showed a significant risk for the highest quintile (odds ratio 5.21, 95% confidence interval 1.49-18.22, P = 0.010). It is thus crucial to prepare suitable housing conditions for elderly hypertensives following a disaster.
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Nishizawa et al. (2018) conducted an observational in Hypertension (n=412). Occupant-owned housing vs. Temporary housing was evaluated on Highest quintile (≥20 mmHg) of winter morning surge in systolic blood pressure (OR 2.58, 95% CI 1.29-5.16, p=0.007). Living in occupant-owned housing, compared to temporary housing, significantly increased the risk of experiencing an extreme winter morning surge in systolic blood pressure (OR 2.58).
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