Mostrando 570,261 - 570,280 Resultados de 574,789 Para Buscar '"conducting"', tiempo de consulta: 3.17s Limitar resultados
  1. 570261
    “…Prior to the initiation of a large phase III clinical trial focused on clinical outcomes, studies are required to evaluate the feasibility of the study protocol, including whether the proposed dosing regimen can safely prevent post-operative vitamin D deficiency in this high-risk population. METHODS: We conducted a two-arm, double-blind dose evaluation randomized controlled trial in children requiring cardiopulmonary bypass for congenital heart disease. …”
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  2. 570262
  3. 570263
  4. 570264
    “…We compared baseline patient characteristics and outcomes among three frailty groups based on the Clinical Frailty Scale (CFS) score: fit (score, 1–3), vulnerable (score, 4), and frail (score, 5–9). We conducted subgroup analysis of patients with sepsis defined as per Sepsis-3 criteria. …”
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  5. 570265
    “…BACKGROUND: Several studies have been conducted to report diagnostic values of the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and lymphocyte-to-monocyte ratio (LMR) in the many diseases, such as oncological, inflammatory, and some infectious diseases. …”
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  6. 570266
  7. 570267
  8. 570268
    “…We evaluated the effect of lead on stunting and whether the effect of lead on cognitive scores is modified by stunting status in multivariable regression analyses. We then conducted a novel 4-way mediation analysis that allows for exposure-mediator interaction to assess how much of the effect of lead on cognitive scores is explained by the pathway through stunting (mediation) and how much is explained by the interaction between lead and stunt (effect modification). …”
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  9. 570269
  10. 570270
    “…METHODS: Between 18 February and 1 March 2020, we conducted an online cross-sectional survey of 2,313 CDC workers and 4,004 PHI workers in five provinces across China experiencing different scales of COVID-19 epidemic. …”
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  11. 570271
  12. 570272
    “…METHODS: A 12-month cluster-randomized trial was conducted in 14 public and private organisations. Office workers aged ≥18 years working ≥30 h per week (n = 740) received an individualised workstation ergonomic intervention, followed by 1:1 allocation to the EET group (neck-specific exercise training), or the EHP group (health promotion) for 12 weeks. …”
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  13. 570273
  14. 570274
  15. 570275
  16. 570276
  17. 570277
  18. 570278
    “…METHODS: A cross-sectional online survey was conducted between 24 February and 3 March 2020. A total of 15 428 pregnant women who were using maternal health care services in China completed a questionnaire which assessed their socio-demographic and pregnancy-related characteristics, contextual, cognitive and social factors related to COVID-19, frequency of washing hands and wearing face masks, and depression and anxiety. …”
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  19. 570279
    por Madhi, Shabir A., Baillie, Vicky, Cutland, Clare L., Voysey, Merryn, Koen, Anthonet L., Fairlie, Lee, Padayachee, Sherman D., Dheda, Keertan, Barnabas, Shaun L., Bhorat, Qasim E., Briner, Carmen, Kwatra, Gaurav, Ahmed, Khatija, Aley, Parvinder, Bhikha, Sutika, Bhiman, Jinal N., Bhorat, As’ad E., du Plessis, Jeanine, Esmail, Aliasgar, Groenewald, Marisa, Horne, Elizea, Hwa, Shi-Hsia, Jose, Aylin, Lambe, Teresa, Laubscher, Matt, Malahleha, Mookho, Masenya, Masebole, Masilela, Mduduzi, McKenzie, Shakeel, Molapo, Kgaogelo, Moultrie, Andrew, Oelofse, Suzette, Patel, Faeezah, Pillay, Sureshnee, Rhead, Sarah, Rodel, Hylton, Rossouw, Lindie, Taoushanis, Carol, Tegally, Houriiyah, Thombrayil, Asha, van Eck, Samuel, Wibmer, Constantinos K., Durham, Nicholas M., Kelly, Elizabeth J., Villafana, Tonya L., Gilbert, Sarah, Pollard, Andrew J., de Oliveira, Tulio, Moore, Penny L., Sigal, Alex, Izu, Alane
    Publicado 2021
    “…BACKGROUND: Assessment of the safety and efficacy of vaccines against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in different populations is essential, as is investigation of the efficacy of the vaccines against emerging SARS-CoV-2 variants of concern, including the B.1.351 (501Y.V2) variant first identified in South Africa. METHODS: We conducted a multicenter, double-blind, randomized, controlled trial to assess the safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) in people not infected with the human immunodeficiency virus (HIV) in South Africa. …”
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  20. 570280
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