More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China

Abstract Hypertension is diagnosed when one’s systolic blood pressure (SBP) reading exceeds 140 mmHg or his/her diastolic blood pressure (DBP) reading exceeds 90 mmHg. Exploiting these diagnostic rules, this paper identifies the causal impact of hypertension diagnoses on one’s diet structure by perf...

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Main Authors: Qihui Chen, Juerong Huang, Yue Hu, Jiale Bao
Format: Article
Language:English
Published: Springer Nature 2025-05-01
Series:Humanities & Social Sciences Communications
Online Access:https://doi.org/10.1057/s41599-025-04962-1
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author Qihui Chen
Juerong Huang
Yue Hu
Jiale Bao
author_facet Qihui Chen
Juerong Huang
Yue Hu
Jiale Bao
author_sort Qihui Chen
collection DOAJ
description Abstract Hypertension is diagnosed when one’s systolic blood pressure (SBP) reading exceeds 140 mmHg or his/her diastolic blood pressure (DBP) reading exceeds 90 mmHg. Exploiting these diagnostic rules, this paper identifies the causal impact of hypertension diagnoses on one’s diet structure by performing a two-dimensional regression discontinuity analysis. Our analysis of a longitudinal dataset on 9355 Chinese adults from a large-scale household survey revealed mixed effects of first-ever hypertension diagnoses based on SBP readings and little impact of DBP-based diagnoses. SBP-based diagnoses help reduce individuals’ (already overconsumed) fat and livestock product intake about 3 years later. However, SBP-based diagnoses also undermine individuals’ dietary diversity and diet balance by reducing their consumption of foods that should be increased for hypertensive individuals (e.g., fruits). These previously overlooked undesirable effects suggest that even though disease diagnoses can provide patients with accurate and professional health information, patients may misunderstand and misinterpret the information provided, thus leading to unhealthy dietary responses.
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issn 2662-9992
language English
publishDate 2025-05-01
publisher Springer Nature
record_format Article
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spelling doaj-art-1dc002ca286d465ca87ec29062da9b412025-08-20T03:09:34ZengSpringer NatureHumanities & Social Sciences Communications2662-99922025-05-0112111710.1057/s41599-025-04962-1More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in ChinaQihui Chen0Juerong Huang1Yue Hu2Jiale Bao3Beijing Food Safety Policy & Strategy Research Base, China Agricultural UniversityCollege of Economics and Management, Northwest A&F UniversityCollege of Economics and Management, China Agricultural UniversityCollege of Economics and Management, China Agricultural UniversityAbstract Hypertension is diagnosed when one’s systolic blood pressure (SBP) reading exceeds 140 mmHg or his/her diastolic blood pressure (DBP) reading exceeds 90 mmHg. Exploiting these diagnostic rules, this paper identifies the causal impact of hypertension diagnoses on one’s diet structure by performing a two-dimensional regression discontinuity analysis. Our analysis of a longitudinal dataset on 9355 Chinese adults from a large-scale household survey revealed mixed effects of first-ever hypertension diagnoses based on SBP readings and little impact of DBP-based diagnoses. SBP-based diagnoses help reduce individuals’ (already overconsumed) fat and livestock product intake about 3 years later. However, SBP-based diagnoses also undermine individuals’ dietary diversity and diet balance by reducing their consumption of foods that should be increased for hypertensive individuals (e.g., fruits). These previously overlooked undesirable effects suggest that even though disease diagnoses can provide patients with accurate and professional health information, patients may misunderstand and misinterpret the information provided, thus leading to unhealthy dietary responses.https://doi.org/10.1057/s41599-025-04962-1
spellingShingle Qihui Chen
Juerong Huang
Yue Hu
Jiale Bao
More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
Humanities & Social Sciences Communications
title More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
title_full More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
title_fullStr More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
title_full_unstemmed More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
title_short More information, better diet?―regression-discontinuity evidence from hypertension diagnoses in China
title_sort more information better diet regression discontinuity evidence from hypertension diagnoses in china
url https://doi.org/10.1057/s41599-025-04962-1
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AT jueronghuang moreinformationbetterdietregressiondiscontinuityevidencefromhypertensiondiagnosesinchina
AT yuehu moreinformationbetterdietregressiondiscontinuityevidencefromhypertensiondiagnosesinchina
AT jialebao moreinformationbetterdietregressiondiscontinuityevidencefromhypertensiondiagnosesinchina