scholarly journals Seasonal variation in blood pressure recorded in routine primary care

Author(s):  
Armindokht Shahsanai ◽  
Sumeet Kalia ◽  
Rahim Moineddin ◽  
Michelle Greiver ◽  
Babak Aliarzadeh ◽  
...  

Objective: Seasonal variations in blood pressure (BP) exist. There is limited information about important clinical factors associated with increased BP and the strength and amplitude of seasonal variation in primary care. Methods: This was a repeated cross-sectional observational study of routinely measured BPs in primary care using data from electronic medical records in the greater Toronto region, from January 2009 to June 2019. We used time-series models and mean monthly systolic BPs (SBPs) and diastolic BPs (DBPs) to estimate the strength and amplitude of seasonal oscillations, as well as their associations with patient characteristics. Results: 314,518 patients were included. Mean SBPs and DBPs were higher in winter than summer. There was strong or perfect seasonality for all characteristics studied, except for BMI less than 18.5 (underweight). Overall, the mean maximal amplitude of the oscillation was 1.51mmHg for SPB (95% CI 1.30mmHg to 1.72mmHg) and 0.59mmHg for DBP (95% CI 0.44mmHg to 0.74mmHg). Patients aged 81 years or older had larger SBP oscillations than younger patients aged 18 to 30 years; the difference was 1.20mmHg (95% CI 1.15mmHg to 1.66mmHg). Hypertension was also associated with greater oscillations, difference 0.53mmHg (95% CI 0.18mmHg to 0.88mmHg). There were no significant differences in SBP oscillations by other patient characteristics, and none for DBP. Conclusion: Strong seasonality was detected for almost all patient subgroups studied and was greatest for older patients and for those with hypertension. The variation in BP between summer and winter should be considered by clinicians when making BP treatment decisions.

Author(s):  
Keisuke Narita ◽  
Satoshi Hoshide ◽  
Hiroshi Kanegae ◽  
Kazuomi Kario

Abstract Background Little is known about seasonal variation in nighttime blood pressure (BP) measured by a home device. In this cross-sectional study, we sought to assess seasonal variation in nighttime home BP using data from the nationwide, practice-based Japan Morning Surge-Home BP (J-HOP) Nocturnal BP study. Methods In this study, 2544 outpatients (mean age 63 years; hypertensives 92%) with cardiovascular risks underwent morning, evening and nighttime home BP measurements (measured at 2:00, 3:00, and 4:00 AM) using validated, automatic and oscillometric home BP devices. Results Our analysis showed that nighttime home systolic BP (SBP) was higher in summer than in other seasons (summer, 123.3±14.6 mmHg vs. spring, 120.7±14.8 mmHg; autumn, 121.1±14.8 mmHg; winter, 119.3±14.0 mmHg; all p<0.05). Moreover, we assessed seasonal variation in the prevalence of elevated nighttime home SBP (≥120 mmHg) in patients with non-elevated daytime home SBP (average of morning and evening home SBP <135 mmHg; n=1565), i.e. masked nocturnal hypertension, which was highest in summer (summer, 45.6% vs. spring, 27.2%; autumn, 28.8%; winter, 24.9%; all p<0.05). Even in intensively controlled morning home SBP (<125 mmHg), the prevalence of masked nocturnal hypertension was higher in summer (summer, 27.4% vs. spring, 14.2%; autumn, 8.9%; winter, 9.0%; all p<0.05). The urine albumin-creatinine ratio in patients with masked nocturnal hypertension tended to be higher than that in patients with non-elevated both daytime and nighttime SBP throughout each season. Conclusions The prevalence of masked nocturnal hypertension was higher in summer than other seasons and the difference proved to be clinically meaningful.


2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Nicholas Chesnaye ◽  
Yvette Meuleman ◽  
Esther De Rooij ◽  
Friedo W Dekker ◽  
Marie Evans ◽  
...  

Abstract Background and Aims Differences between the sexes are apparent in the epidemiology of CKD. Cross-sectional studies show that women consistently report a poorer health-related quality of life (QoL) than men, however, longitudinal studies are lacking. Here we investigate the sex-specific evolution of QoL over time in advanced CKD. As a secondary aim, we explore the sex-specific determinants of QoL. Method EQUAL is an observational prospective cohort study in stages 4 and 5 CKD patients ≥65 years not on dialysis with an incident estimated glomerular filtration rate (eGFR) < 20 ml/min/1.73m². Data on QoL (measured using the RAND-36), clinical and demographic patient characteristics were collected between April 2012 and September 2020. QoL trajectories were modelled by sex using linear mixed models, and joint models were applied to deal with informative censoring. We followed patients until death or dialysis initiation. Results We included 5151 QoL measurements in 1416 patients over a total of 1986 person years of follow-up. Overall, the physical component summary (PCS) declined with 2.0 (95% CI 1.4-2.6) points and the mental component summary (MCS) by 2.4 (95% CI 1.8-3.0) points per year. Although women had overall lower QoL scores, figure 1 demonstrates that PCS and MCS declined more than twice as fast in men (PCS: 2.4 per year, 95% CI 1.7 – 3.1, MCS: 2.9 per year, 95% CI 2.2 – 3.6) compared with women (PCS: 1.1 per year, 95% CI -0.2 – 2.0, MCS: 1.5 per year, 95% CI 0.5 – 2.4). We identified a non-linear interaction effect between sex and eGFR levels on QoL, demonstrating a stronger negative effect of decreased eGFR on both PCS (p=0.02) and MCS (p=0.04) in men compared with women. Subsequent adjustment for renal decline attenuated the difference in rate of QoL decline between men and women (difference after adjustment; PCS: 1.1, 95% CI -0.1 – 2.2, MCS: 1.2, 95% 0.0 – 2.3). In univariable analyses, higher serum haemoglobin was more beneficial to QoL in men compared to women (p-value for interaction; PCS: p=0.03, MCS: p=0.01). Higher serum phosphate had a strong harmful effect on both PCS and MCS in men, but not in women (PCS & MCS: p<0.001). The presence of pre-existing diabetes had a negative effect on PCS and MCS in men, but to a lesser extent in women (PCS: p=0.02, MCS: p=0.01). Conclusion Despite the higher overall QoL reported by men, both their physical and mental QoL declined approximately twice as fast compared with women. The faster decline in men was mediated in part by their lower levels of renal function, which had a stronger impact on their QoL as compared with women. Furthermore, in exploratory analyses we identified that high levels of phosphate, low levels of haemoglobin, and pre-existing diabetes were more detrimental to QoL in men than in women.


2021 ◽  
Vol 10 (23) ◽  
pp. 5656
Author(s):  
Krzysztof Studziński ◽  
Tomasz Tomasik ◽  
Adam Windak ◽  
Maciej Banach ◽  
Ewa Wójtowicz ◽  
...  

A nationwide cross-sectional study, LIPIDOGRAM2015, was carried out in Poland in the years 2015 and 2016. A total of 438 primary care physicians enrolled 13,724 adult patients that sought medical care in primary health care practices. The prevalence of hypertension, diabetes mellitus, dyslipidaemia, and CVD were similar in urban and rural areas (49.5 vs. 49.4%; 13.7 vs. 13.1%; 84.2 vs. 85.2%; 14.4 vs. 14.2%, respectively). The prevalence of obesity (32.3 vs. 37.5%, p < 0.01) and excessive waist circumference (77.5 vs. 80.7%, p < 0.01), as well as abdominal obesity (p = 43.2 vs. 46.4%, p < 0.01), were higher in rural areas in both genders. Mean levels of LDL-C (128 vs. 130 mg/dL, p = 0.04) and non-HDL-C (147 vs. 148 mg/dL, p = 0.03) were slightly higher in rural populations. Altogether, 14.3% of patients with CVD from urban areas and 11.3% from rural areas reached LDL <70 mg/dL (p = 0.04). There were no important differences in the prevalence of hypertension, diabetes, dyslipidaemia, and CVD, or in mean levels of blood pressure, cholesterol fractions, glucose, and HbA1c between Polish urban and rural primary care patient populations. A high proportion of patients in cities and an even-higher proportion in rural areas did not reach the recommended targets for blood pressure, LDL-C, and HbA1c, indicating the need for novel CVD-prevention programs.


BJGP Open ◽  
2021 ◽  
pp. BJGPO.2021.0131
Author(s):  
Annemarijn de Boer ◽  
Monika Hollander ◽  
Ineke van Dis ◽  
Frank L.J. Visseren ◽  
Michiel L Bots ◽  
...  

BackgroundGuidelines on cardiovascular risk management (CVRM) recommend blood pressure (BP) and cholesterol measurements every five years in men ≥40 and (post-menopausal) women ≥50 years.AimEvaluate CVRM guideline implementation.Design & settingCross-sectional analyses in a dynamic cohort using primary care electronic health record (EHR) data from the Julius General Practitioners’ Network (n=388,929).MethodWe assessed trends (2008–2018) in the proportion of patients with at least one measurement (BP and cholesterol) every one, two, and five years, in those with a history of (1) cardiovascular disease (CVD) and diabetes, (2) diabetes only, (3) CVD only, (4) cardiovascular risk assessment (CRA) indication based on other medical history, or (5) no CRA indication. We evaluated trends over time using logistic regression mixed model analyses.ResultsTrends in annual BP and cholesterol measurement increased for patients with a history of CVD from 37.0% to 48.4% (P<0.001) and 25.8% to 40.2% (P<0.001). In the five-year window 2014–2018, BP and cholesterol measurements were performed in respectively 78.5% and 74.1% of all men ≥40 years and 82.2% and 78.5% in all women ≥50 years. Least measured were patients without a CRA indication: men 60.2% and 62.4%; women 55.5% and 59.3%.ConclusionThe fairly high frequency of CVRM measurements available in the EHR of patients in primary care suggests an adequate implementation of the CVRM guideline. As nearly all individuals visit the general practitioner once within a five-year time window, improvement of CVRM remains very well possible, especially in those without a CRA indication.


2020 ◽  
Vol 11 ◽  
pp. 215013272092627
Author(s):  
Julia Ellbrant ◽  
Jonas Åkeson ◽  
Helena Sletten ◽  
Jenny Eckner ◽  
Pia Karlsland Åkeson

Aims: Pediatric emergency department (ED) overcrowding is a challenge. This study was designed to evaluate if a hospital-integrated primary care unit (HPCU) reduces less urgent visits at a pediatric ED. Methods: This retrospective cross-sectional study was carried out at a university hospital in Sweden, where the HPCU, open outside office hours, had been integrated next to the ED. Children seeking ED care during 4-week high- and low-load study periods before (2012) and after (2015) implementation of the HPCU were included. Information on patient characteristics, ED management, and length of ED stay was obtained from hospital data registers. Results: In total, 3216 and 3074 ED patient visits were recorded in 2012 and 2015, respectively. During opening hours of the HPCU, the proportions of pediatric ED visits (28% lower; P < .001), visits in the lowest triage group (36% lower; P < .001), patients presenting with fever ( P = .001) or ear pain ( P < .001), and nonadmitted ED patients ( P = .033), were significantly lower in 2015 than in 2012, whereas the proportion of infants ≤3 months was higher in 2015 ( P < .001). Conclusions: By enabling adjacent management of less urgent pediatric patients at adequate lower levels of medical care, implementation of a HPCU outside office hours may contribute to fewer and more appropriate pediatric ED visits.


2019 ◽  
Vol 34 (11) ◽  
pp. 2173-2183
Author(s):  
Georgina M Chambers ◽  
Christopher Harrison ◽  
James Raymer ◽  
Ann Kristin Petersen Raymer ◽  
Helena Britt ◽  
...  

Abstract STUDY QUESTION How did general practitioners (GPs) (family physicians) manage infertility in females and males in primary care between 2000 and 2016? SUMMARY ANSWER The number of GP infertility consultations for females increased 1.6 folds during the study period, with 42.9% of consultations resulting in a referral to a fertility clinic or specialist, compared to a 3-fold increase in the number of consultations for men, with 21.5% of consultations resulting in a referral. WHAT IS KNOWN ALREADY Infertility affects one in six couples and is expected to increase with the trend to later childbearing and reports of declining sperm counts. Despite GPs often being the first contact for infertile people, very limited information is available on the management of infertility in primary care. STUDY DESIGN, SIZE, DURATION Data from the Bettering the Evaluation and Care of Health programme were used, which is a national study of Australian primary care (general practice) clinical activity based on 1000 ever-changing, randomly selected GPs involved in 100 000 GP–patient consultations per year between 2000 and 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS Females and males aged 18–49 years attending GPs for the management of infertility were included in the study. Details recorded by GPs included patient characteristics, problems managed and management actions (including counselling/education, imaging, pathology, medications and referrals to specialists and fertility clinics). Analyses included trends in the rates of infertility consultations by sex of patient, descriptive and univariate analyses of patient characteristics and management actions and multivariate logistic regression to determine which patient and GP characteristics were independently associated with increased rates of infertility management and referrals. MAIN RESULTS AND THE ROLE OF CHANCE The rate of infertility consultations per capita increased 1.6 folds for women (17.7–28.3 per 1000 women aged 18–49 years) and 3 folds for men over the time period (3.4–10.2 per 1000 men aged 18–49 years). Referral to a fertility clinic or relevant specialist occurred in 42.9% of female infertility consultations and 21.5% of male infertility consultations. After controlling for age and other patient characteristics, being aged in their 30s, not having income assistance, attending primary care in later years of the study and coming from a non-English-speaking background, were associated with an increased likelihood of infertility being managed in primary care. In female patients, holding a Commonwealth concession card (indicating low income), living in a remote area and having a female GP all indicated a lower adjusted odds of referral to a fertility clinic or specialist. LIMITATIONS, REASONS FOR CAUTION Data are lacking for the period of infertility and infertility diagnosis, which would provide a more complete picture of the epidemiology of treatment-seeking behaviour for infertility. Australia’s universal insurance scheme provides residents with access to a GP, and therefore these findings may not be generalizable to other settings. WIDER IMPLICATIONS OF THE FINDINGS This study informs public policy on how infertility is managed in primary care in different patient groups. Whether the management actions taken and rates of secondary referral to a fertility clinic or specialist are appropriate warrants further investigation. The development of clinical practice guidelines for the management of infertility would provide a standardized approach to advice, investigations, treatment and referral pathways in primary care. STUDY FUNDING/COMPETING INTEREST(S) This paper is part of a study being funded by an Australian National Health and Medical Research Council project grant APP1104543. G.C. reports that she is an employee of The University of New South Wales (UNSW) and Director of the National Perinatal Epidemiology and Statistics Unit (NPESU), UNSW. The NPESU manages the Australian and New Zealand Assisted Reproductive Technology Database on behalf of the Fertility Society of Australia. W.L. reports being a part-time paid employee and minor shareholder of Virtus Health, a fertility company. R.N. reports being a small unitholder in a fertility company, receiving grants for research from Merck and Ferring and speaker travel grants from Merck. TRIAL REGISTRATION NUMBER NA


2020 ◽  
Vol 9 (4) ◽  
pp. 1178 ◽  
Author(s):  
Ada E. M. Bloem ◽  
Rémy L. M. Mostard ◽  
Naomi Stoot ◽  
Jan H. Vercoulen ◽  
Jeannette B. Peters ◽  
...  

In patients with interstitial lung disease (ILD) next to dyspnea, fatigue is expected to be the most prevalent symptom. Surprisingly, the prevalence of severe fatigue has been scarcely studied in ILD patients and limited information on its associated factors is available. This study aimed to determine the prevalence of severe fatigue in patients with idiopathic pulmonary fibrosis (IPF) or pulmonary sarcoidosis and to identify the relationship between fatigue, patient characteristics, and clinical parameters. In this cross-sectional study, fatigue (checklist individual strength-fatigue (CIS-Fat)), demographics, lung function, dyspnea (modified-Medical Research Council (mMRC)), sleepiness (Epworth Sleepiness Scale), anxiety/depression (hospital anxiety and depression scale (HADS-A/HADS-D)), catastrophizing (fatigue catastrophizing scale (FCS)), functional activity impairment (respiratory illness quality-of-life (QoL-RIQ-Activity)), and health status (EuroQol five-dimensional descriptive system (EQ-5D-5L)) were assessed in outpatients with ILD. Mean CIS-Fat scores were 34.1 (SD ± 11.2) in 59 IPF patients and 40.0 (12.3) in 58 sarcoidosis patients. Severe fatigue (SD ± ≥36 points) was present in IPF patients (47.5%) and sarcoidosis (69%). In IPF, CIS-Fat correlated strongly (ρ > 0.5; p < 0.01) with FCS, QoL-RIQ-Activity, and EQ-5D-5L-Health and moderately (0.3 < ρ < 0.5; p < 0.01) with EQ-5D-5L-Index, mMRC, and HADS-D. In sarcoidosis, CIS-Fat correlated strongly with EQ-5D-5L-Health, QoL-RIQ-Activity, EQ-5D-5L-Index, HADS-D, and mMRC and moderately with FCS and hospitalization <12 months. Severe fatigue is highly prevalent in ILD patients and is associated with dyspnea, depression, catastrophizing, functional activity impairments, and QoL.


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