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  • Ovid Technologies (Wolters Kluwer Health)  (6)
  • Zhang, Zhen-Yu  (6)
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  • Ovid Technologies (Wolters Kluwer Health)  (6)
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  • 1
    Online Resource
    Online Resource
    S-23-5: TWO-YEAR RESPONSES OF OFFICE AND AMBULATORY BLOOD PRESSURE TO FIRST OCCUPATIONAL LEAD EXPOSURE
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Journal of Hypertension Vol. 41, No. Suppl 1 ( 2023-01), p. e56-
    Details
    In: Journal of Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 41, No. Suppl 1 ( 2023-01), p. e56-
    Type of Medium: Online Resource
    ISSN: 0263-6352 , 1473-5598
    URL: Article
    DOI: 10.1097/01.hjh.0000913268.93991.ca
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 2017684-3
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  • 2
    Online Resource
    Online Resource
    Two-Year Responses of Office and Ambulatory Blood Pressure to First Occupational Lead Exposure
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Hypertension Vol. 76, No. 4 ( 2020-10), p. 1299-1307
    Details
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 76, No. 4 ( 2020-10), p. 1299-1307
    Abstract: Lead exposure causing hypertension is the mechanism commonly assumed to set off premature death and cardiovascular complications. However, at current exposure levels in the developed world, the link between hypertension and lead remains unproven. In the Study for Promotion of Health in Recycling Lead (URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02243904), we recorded the 2-year responses of office blood pressure (average of 5 consecutive readings) and 24-hour ambulatory blood pressure to first occupational lead exposure in workers newly employed at lead recycling plants. Blood lead (BL) was measured by inductively coupled plasma mass spectrometry (detection limit 0.5 µg/dL). Hypertension was defined according to the 2017 American College of Cardiology/American Heart Association guideline. Statistical methods included multivariable-adjusted mixed models with participants modeled as a random effect and interval-censored Cox regression. Office blood pressure was measured in 267 participants (11.6% women, mean age at enrollment, 28.6 years) and ambulatory blood pressure in 137 at 2 follow-up visits. Geometric means were 4.09 µg/dL for baseline BL and 3.30 for the last-follow-up-to-baseline BL ratio. Fully adjusted changes in systolic/diastolic blood pressure associated with a doubling of the BL ratio were 0.36/0.28 mm Hg (95% CI, −0.55 to 1.27/−0.48 to 1.04 mm Hg) for office blood pressure and −0.18/0.11 mm Hg (−2.09 to 1.74/−1.05 to 1.27 mm Hg) for 24-hour ambulatory blood pressure. The adjusted hazard ratios of moving up across hypertension categories for a doubling in BL were 1.13 (0.93–1.38) and 0.84 (0.57–1.22) for office blood pressure and ambulatory blood pressure, respectively. In conclusion, the 2-year blood pressure responses and incident hypertension were not associated with the BL increase on first occupational exposure.
    Type of Medium: Online Resource
    ISSN: 0194-911X , 1524-4563
    URL: Article
    DOI: 10.1161/HYPERTENSIONAHA.120.15590
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 2094210-2
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Two-Year Responses of Heart Rate and Heart Rate Variability to First Occupational Lead Exposure
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Hypertension Vol. 77, No. 5 ( 2021-05), p. 1775-1786
    Details
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 77, No. 5 ( 2021-05), p. 1775-1786
    Abstract: Because of the falling lead exposure, the literature relating autonomous nervous function to blood lead (BL) has limited relevance. In the longitudinal Study for Promotion of Health in Recycling Lead (URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02243904), we recorded the 2-year responses of heart rate (HR), HR variability (HRV; Cardiax, International Medical Equipment Developing, Budapest, Hungary), and median nerve conduction velocity (Brevio, NeuMed, West Trenton, NJ), a routine test in occupational medicine, to first lead exposure in 195 newly hired workers (91.3% men; mean age, 27.8 years). High- and low-frequency HRV power and orthostatic HRV responses were derived from 5-minute ECGs in the supine and standing positions by Fourier transform and autoregression. BL was determined by inductively coupled plasma mass spectrometry. From baseline to follow-up, BL increased from 4.22 to 14.1 μg/dL and supine/standing HR from 63.6/75.5 to 67.1/78.8 beats per minute. In analyses stratified by fourths of BL changes, trends in HR and Fourier/autoregressive HRV did not reveal a dose-response curve (0.074≤ P ≤0.98). In multivariable-adjusted mixed models, HR, Fourier/autoregressive HRV, and nerve conduction velocity changes were unrelated to BL except for a weak inverse association between supine HR and BL changes (−0.55%; P =0.029). The expected associations between HRV and HR changes were preserved with no differences at baseline/follow-up. Analyses dichotomized by baseline median BL or cumulative BL index (4.30 μg/dL or 32.1 μg/dL×year) suggested an HRV increase versus decrease in the low versus high baseline exposure group. Thus, a 〉 3-fold BL increment did not affect autonomous neural function as captured by HRV.
    Type of Medium: Online Resource
    ISSN: 0194-911X , 1524-4563
    URL: Article
    DOI: 10.1161/HYPERTENSIONAHA.120.16545
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2094210-2
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  • 4
    Online Resource
    Online Resource
    Chinese Expert Consensus on Clinical Application of Female Contraceptive Methods
    Ovid Technologies (Wolters Kluwer Health) ; 2018
    In:  Reproductive and Developmental Medicine Vol. 2, No. 4 ( 2018-10), p. 208-223
    Details
    In: Reproductive and Developmental Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 2, No. 4 ( 2018-10), p. 208-223
    Type of Medium: Online Resource
    ISSN: 2589-8728
    URL: Article
    DOI: 10.4103/2096-2924.249891
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
    detail.hit.zdb_id: 3046168-6
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  • 5
    Online Resource
    Online Resource
    Outcome-Driven Thresholds for Ambulatory Blood Pressure Based on the New American College of Cardiology/American Heart Association Classification of Hypertension
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Hypertension Vol. 74, No. 4 ( 2019-10), p. 776-783
    Details
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 74, No. 4 ( 2019-10), p. 776-783
    Abstract: The new American College of Cardiology/American Heart Association guideline reclassified office blood pressure and proposed thresholds for ambulatory blood pressure (ABP). We derived outcome-driven ABP thresholds corresponding with the new office blood pressure categories. We performed 24-hour ABP monitoring in 11 152 participants (48.9% women; mean age, 53.0 years) representative of 13 populations. We determined ABP thresholds resulting in multivariable-adjusted 10-year risks similar to those associated with elevated office blood pressure (120/80 mm Hg) and stages 1 and 2 of office hypertension (130/80 and 140/90 mm Hg). Over 13.9 years (median), 2728 (rate per 1000 person-years, 17.9) people died, 1033 (6.8) from cardiovascular disease; furthermore, 1988 (13.8), 893 (6.0), and 795 (5.4) cardiovascular and coronary events and strokes occurred. Using a composite cardiovascular end point, systolic/diastolic outcome-driven thresholds indicating elevated 24-hour, daytime, and nighttime ABP were 117.9/75.2, 121.4/79.6, and 105.3/66.2 mm Hg. For stages 1 and 2 ambulatory hypertension, thresholds were 123.3/75.2 and 128.7/80.7 mm Hg for 24-hour ABP, 128.5/79.6 and 135.6/87.1 mm Hg for daytime ABP, and 111.7/66.2 and 118.1/72.5 mm Hg for nighttime ABP. ABP thresholds derived from other end points were similar. After rounding, approximate thresholds for elevated 24-hour, daytime, and nighttime ABP were 120/75, 120/80, and 105/65 mm Hg, and for stages 1 and 2, ambulatory hypertension 125/75 and 130/80 mm Hg, 130/80 and 135/85 mm Hg, and 110/65 and 120/70 mm Hg. Outcome-driven ABP thresholds corresponding to elevated blood pressure and stages 1 and 2 of hypertension are similar to those proposed by the current American College of Cardiology/American Heart Association guideline.
    Type of Medium: Online Resource
    ISSN: 0194-911X , 1524-4563
    URL: Article
    DOI: 10.1161/HYPERTENSIONAHA.119.13512
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 2094210-2
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  • 6
    Online Resource
    Online Resource
    Interpretation of Population Health Metrics : Environmental Lead Exposure as Exemplary Case
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Hypertension Vol. 75, No. 3 ( 2020-03), p. 603-614
    Details
    In: Hypertension, Ovid Technologies (Wolters Kluwer Health), Vol. 75, No. 3 ( 2020-03), p. 603-614
    Abstract: Our objective was to gain insight in the calculation and interpretation of population health metrics that inform disease prevention. Using as model environmental exposure to lead (ELE), a global pollutant, we assessed population health metrics derived from the Third National Health and Nutrition Examination Survey (1988 to 1994), the GBD (Global Burden of Disease Study 2010), and the Organization for Economic Co-operation and Development. In the National Health and Nutrition Examination Survey, the hazard ratio relating mortality over 19.3 years of follow-up to a blood lead increase at baseline from 1.0 to 6.7 µg/dL (10th–90th percentile interval) was 1.37 (95% CI, 1.17–1.60). The population-attributable fraction of blood lead was 18.0% (10.9%–26.1%). The number of preventable ELE-related deaths in the United States would be 412 000 per year (250 000–598 000). In GBD 2010, deaths and disability-adjusted life-years globally lost due to ELE were 0.67 million (0.58–0.78 million) and 0.56% (0.47%–0.66%), respectively. According to the 2017 Organization for Economic Co-operation and Development statistics, ELE-related welfare costs were $1 676 224 million worldwide. Extrapolations from the foregoing metrics assumed causality and reversibility of the association between mortality and blood lead, which at present-day ELE levels in developed nations is not established. Other issues limiting the interpretation of ELE-related population health metrics are the inflation of relative risk based on outdated blood lead levels, not differentiating relative from absolute risk, clustering of risk factors and exposures within individuals, residual confounding, and disregarding noncardiovascular disease and immigration in national ELE-associated welfare estimates. In conclusion, this review highlights the importance of critical thinking in translating population health metrics into cost-effective preventive strategies.
    Type of Medium: Online Resource
    ISSN: 0194-911X , 1524-4563
    URL: Article
    DOI: 10.1161/HYPERTENSIONAHA.119.14217
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 2094210-2
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