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相关概念视频

Observational Studies01:11

Observational Studies

8.8K
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
8.8K
Longitudinal Research02:20

Longitudinal Research

12.0K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
12.0K
Cross-Sectional Research01:50

Cross-Sectional Research

11.4K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
11.4K
Longitudinal Studies01:26

Longitudinal Studies

191
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
191
Archival Research01:40

Archival Research

16.0K
Some researchers gain access to large amounts of data without interacting with a single research participant. Instead, they use existing records to answer various research questions. This type of research approach is known as archival research. Archival research relies on looking at past records or data sets to look for interesting patterns or relationships. For example, a researcher might access the academic records of all individuals who enrolled in college within the past ten years and...
16.0K
Data Collection by Observations01:08

Data Collection by Observations

12.1K
Data collection refers to a systematic way of obtaining, observing, measuring, and analyzing accurate information. Observational studies are one of the most widely used methods of data collection. It involves collecting data by observing the behavior and physical characteristics of a sample without making any modifications to the sample.
An astronomer viewing the motion and brightness of stars in the sky and recording the data is an example of observational data collection. A botanist recording...
12.1K

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相关实验视频

Updated: Jul 27, 2025

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
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A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

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一个回顾性研究

Petros Ioannou1,2, Maria Zacharioudaki3, Despoina Spentzouri2

  • 1School of Medicine, University of Crete, 71003 Heraklion, Greece.

Diagnostics (Basel, Switzerland)
|June 10, 2023
PubMed
概括
此摘要是机器生成的。

黄金葡萄球菌 (SAB) 是一种严重的感染. 严重的败血症和败血性休克是与SAB患者死亡率独立相关的关键因素,强调需要改进治疗策略.

关键词:
黄金葡萄球菌黄金葡萄球菌抗微生物耐药性 抗微生物耐药性细菌病的细菌病是什么意思血流感染 感染 感染死亡率 死亡率

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科学领域:

  • 传染性疾病 传染性疾病
  • 临床微生物学 临床微生物学
  • 流行病学 流行病学

背景情况:

  • 黄金杆菌菌菌 (SAB) 仍然是致病率和死亡率的重要原因,尽管最近的病率下降.
  • 大约25%的SAB患者死亡,需要更有效和及时的治疗.
  • 确定与SAB死亡率相关的因素对于改善患者的治疗结果至关重要.

研究的目的:

  • 为了追溯评估一组SAB患者的队列.
  • 确定与SAB患者住院死亡率独立相关的因素.
  • 评估是否遵守治疗指南,并确定干预的领域.

主要方法:

  • 在2005年1月至2021年12月期间住院的256名SAB患者的回顾性分析.
  • 评估人口统计数据,临床特征,微生物学数据和治疗方案.
  • 多变量后勤回归用于确定住院死亡率的独立预测因素.

主要成果:

  • 住院死亡率为15.9%.
  • 与死亡率相关的因素包括女性性别,年龄较大,麦凯布得分较高,中央静脉导管,中性质衰竭,严重败血症,败血性休克和MRSA细菌性病.
  • 严重的败血症 (OR=12.294) 和败血性休克 (OR=57.18) 独立地与死亡率相关.
  • 观察到高比例的不适当的经验抗微生物治疗和缺乏重复血培养.

结论:

  • 严重的败血症和败血性休克是SAB中死亡率的独立预测因素.
  • 治疗指南的遵守率低于最佳水平,包括缺乏重复血液培养,是普遍存在的.
  • 迫切需要采取诸如抗菌药物管理,增加传染病医生的参与和指导方针的实施等干预措施.