Jianfang Liu
Biographic Data
| ID | 5537830 |
|---|---|
| NAME | Jianfang Liu |
| GIVEN NAMES | Jianfang |
| FAMILY NAME | Liu |
| SIGNATURE | LIU J |
| AFFILIATIONS | Columbia University |
| ORCID | 0000-0002-9235-3166 |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 18 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Psychometric Evaluation of a Revised Instrument for Assessing HIV Knowledge Among SGM Men
Accurate assessment of general HIV and pre-exposure prophylaxis (PrEP) knowledge is essential for evaluating contemporary prevention efforts. This study examined the psychometric properties of a revised HIV and PrEP knowledge instrument for young sexual and gender minority (SGM) men. Data were collected from 1,519 participants (ages 17–29) via an online survey. Of the original 31 items, 7 were removed based on item analysis, and Exploratory Facto…
Pre-Exposure prophylaxis knowledge, use and adherence among a US national sample of women
Pre-exposure prophylaxis (PrEP) is a proven strategy for HIV prevention, yet uptake among women vulnerable to HIV remains low. This study draws on survey data and urine-based adherence testing from the American Women Assessing Risk Epidemiologically (AWARE) study to assess PrEP knowledge, use, and adherence in a behaviorally vulnerable sample. Despite high awareness of PrEP, actual use and willingness to consider PrEP were minimal. Objective adhe…
Feasibility and Acceptability of the Sense2Quit App for Improving Smoking Cessation in PWH
Incorporating the Present-on-Admission Indicator to Predict In-hospital Mortality Through Elixhauser Measures
BACKGROUND: In 2021, the Agency for Health Care Research and Quality (AHRQ) updated its guidelines for using the Present-on-Admission (POA) indicator in the Elixhauser comorbidity index. This update helps distinguish pre-existing comorbidities from complications that arise after hospital admission, improving the validity of hospital performance assessments and more accurately measuring patients' severity of illness upon admission. OBJECTIVE: To e…
Protocol
Innovative and culturally sensitive strategies to improve access to HIV prevention and treatment services for cisgender women are vital to curb the burden of the HIV epidemic for this key population. Findings from this study will inform future research, intervention strategies, and public policies
Racial Disparities in Chronic Conditions Outcomes in Primary Care Settings
Racial disparities in chronic condition management lead to adverse outcomes such as increased emergency department (ED) visits and hospitalizations among minority patients. These disparities may arise from differences within or between primary care practices, but limited research has explored these disparities. To examine racial/ethnic disparities in chronic condition outcomes in primary care and determine if they are due to between- versus withi…
A feasibility study of the use of HIV self-tests in young men who have sex with men
Studies on HIV self-testing (HIV-ST) have been limited to adults (age 18+). The study assessed use of HIV-ST among a diverse group of young men who have sex with men (YMSM) in the United States (US) and assessed differences in uptake by demographic characteristics and requirements for parental consent. This study demonstrated feasibility of HIV-ST for YMSM as young as 14 years of age, which suggests potential for increasing HIV testing in this yo…
Interpersonal- and Community-Level Risk Factors for Adolescent Obesity
The Impact of Primary Care Practice Structural Capabilities on Nurse Practitioner Burnout, Job Satisfaction, and Intent to Leave
BACKGROUND: Lack of structure for care delivery (ie, structural capabilities) has been linked to lower quality of care and negative patient outcomes. However, little research examines the relationship between practice structural capabilities and nurse practitioner (NP) job outcomes. OBJECTIVES: We investigated the association between structural capabilities and primary care NP job outcomes (ie, burnout, job dissatisfaction, and intent to leave). …
The prevalence and characteristics of metabolic syndrome according to different definitions in China
The prevalence and characteristics of the MetS vary with the definition used in the Chinese population. The three MetS definitions are more consistent in men but relatively poor in women. On the other hand, even if estimated according to the definition of the lowest prevalence, MetS is common in China
Clinician Use of HIV-Related Infographics During Clinic Visits in the Dominican Republic is Associated with Lower Viral Load and Other Improvements in Health Outcomes
The Clinical Characteristics and Prognosis Factors of Mild-Moderate Patients With Covid-19 in a Mobile Cabin Hospital
Background: Novel mobile cabin hospitals have been built to provide more makeshift beds for patients with COVID-19 in Wuhan. However, the value of the temporary hospital and characteristics of these patients needed be further described. Methods: This was a retrospective, single-center study. A total of 869 patients with confirmed COVID-19 were admitted to Wuchang Mobile Cabin Hospital in Wuhan, between February 6th, 2020 and February 20th, 2020. …
Factors Related to Biological Sex Differences in Engagement with Healthcare Providers in Persons Living with HIV
The impact of HIV diagnosis on length of hospital stay in New York City, NY, USA
While hospitalizations among people living with human immunodeficiency virus (PLWH) have been elevated in the past compared to their uninfected counterparts, the introduction of antiretroviral therapy (ART) has resulted in great strides in controlling symptomatic infection. However, research largely overlooks important differences among HIV-infected individuals, primarily PLWH who are symptomatic versus those who are asymptomatic. We conducted a …
Nurse Practitioner Practice Environments in Primary Care and Quality of Care for Chronic Diseases
BACKGROUND: The chronic disease burden in the United States represents a significant challenge for the primary care system. The nurse practitioner (NP) workforce can help meet the demand for care; however, organizational barriers such as poor practice environments prevent NPs from delivering high quality care. OBJECTIVES: We investigated the relationship between NP practice environments and quality of care for chronic diseases. RESEARCH DESIGN: W…
Acceptability of Rapid HIV Testing Among Latinos in Washington Heights, New York City, New York, USA
Identifying the Complexity of Multiple Risk Factors for Obesity Among Urban Latinas
The prevalence of obesity is rising rapidly among Hispanics/Latinas. We evaluated the prevalence of being obese or overweight and associated risk factors among 630 low-income, Latina women from ambulatory care clinics in Upper Manhattan. Overall, 37 % of the sample was overweight and 41 % of the sample was obese, and yet, almost half of women who are overweight considered their weight "just about right." After adjusting for socio-demographic, beh…
Reconstructing the palaeoflood events from slackwater deposits in the upper reaches of Hanjiang River, China
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Reconstructing the palaeoflood events from slackwater deposits in the upper reaches of Hanjiang River, China
Acceptability of Rapid HIV Testing Among Latinos in Washington Heights, New York City, New York, USA
Identifying the Complexity of Multiple Risk Factors for Obesity Among Urban Latinas
The prevalence of obesity is rising rapidly among Hispanics/Latinas. We evaluated the prevalence of being obese or overweight and associated risk factors among 630 low-income, Latina women from ambulatory care clinics in Upper Manhattan. Overall, 37 % of the sample was overweight and 41 % of the sample was obese, and yet, almost half of women who are overweight considered their weight "just about right." After adjusting for socio-demographic, beh…
The impact of HIV diagnosis on length of hospital stay in New York City, NY, USA
While hospitalizations among people living with human immunodeficiency virus (PLWH) have been elevated in the past compared to their uninfected counterparts, the introduction of antiretroviral therapy (ART) has resulted in great strides in controlling symptomatic infection. However, research largely overlooks important differences among HIV-infected individuals, primarily PLWH who are symptomatic versus those who are asymptomatic. We conducted a …
Nurse Practitioner Practice Environments in Primary Care and Quality of Care for Chronic Diseases
BACKGROUND: The chronic disease burden in the United States represents a significant challenge for the primary care system. The nurse practitioner (NP) workforce can help meet the demand for care; however, organizational barriers such as poor practice environments prevent NPs from delivering high quality care. OBJECTIVES: We investigated the relationship between NP practice environments and quality of care for chronic diseases. RESEARCH DESIGN: W…
The Clinical Characteristics and Prognosis Factors of Mild-Moderate Patients With Covid-19 in a Mobile Cabin Hospital
Background: Novel mobile cabin hospitals have been built to provide more makeshift beds for patients with COVID-19 in Wuhan. However, the value of the temporary hospital and characteristics of these patients needed be further described. Methods: This was a retrospective, single-center study. A total of 869 patients with confirmed COVID-19 were admitted to Wuchang Mobile Cabin Hospital in Wuhan, between February 6th, 2020 and February 20th, 2020. …
Factors Related to Biological Sex Differences in Engagement with Healthcare Providers in Persons Living with HIV
Clinician Use of HIV-Related Infographics During Clinic Visits in the Dominican Republic is Associated with Lower Viral Load and Other Improvements in Health Outcomes
The prevalence and characteristics of metabolic syndrome according to different definitions in China
The prevalence and characteristics of the MetS vary with the definition used in the Chinese population. The three MetS definitions are more consistent in men but relatively poor in women. On the other hand, even if estimated according to the definition of the lowest prevalence, MetS is common in China
A feasibility study of the use of HIV self-tests in young men who have sex with men
Studies on HIV self-testing (HIV-ST) have been limited to adults (age 18+). The study assessed use of HIV-ST among a diverse group of young men who have sex with men (YMSM) in the United States (US) and assessed differences in uptake by demographic characteristics and requirements for parental consent. This study demonstrated feasibility of HIV-ST for YMSM as young as 14 years of age, which suggests potential for increasing HIV testing in this yo…
Interpersonal- and Community-Level Risk Factors for Adolescent Obesity
The Impact of Primary Care Practice Structural Capabilities on Nurse Practitioner Burnout, Job Satisfaction, and Intent to Leave
BACKGROUND: Lack of structure for care delivery (ie, structural capabilities) has been linked to lower quality of care and negative patient outcomes. However, little research examines the relationship between practice structural capabilities and nurse practitioner (NP) job outcomes. OBJECTIVES: We investigated the association between structural capabilities and primary care NP job outcomes (ie, burnout, job dissatisfaction, and intent to leave). …
Protocol
Innovative and culturally sensitive strategies to improve access to HIV prevention and treatment services for cisgender women are vital to curb the burden of the HIV epidemic for this key population. Findings from this study will inform future research, intervention strategies, and public policies
Racial Disparities in Chronic Conditions Outcomes in Primary Care Settings
Racial disparities in chronic condition management lead to adverse outcomes such as increased emergency department (ED) visits and hospitalizations among minority patients. These disparities may arise from differences within or between primary care practices, but limited research has explored these disparities. To examine racial/ethnic disparities in chronic condition outcomes in primary care and determine if they are due to between- versus withi…
Feasibility and Acceptability of the Sense2Quit App for Improving Smoking Cessation in PWH
Incorporating the Present-on-Admission Indicator to Predict In-hospital Mortality Through Elixhauser Measures
BACKGROUND: In 2021, the Agency for Health Care Research and Quality (AHRQ) updated its guidelines for using the Present-on-Admission (POA) indicator in the Elixhauser comorbidity index. This update helps distinguish pre-existing comorbidities from complications that arise after hospital admission, improving the validity of hospital performance assessments and more accurately measuring patients' severity of illness upon admission. OBJECTIVE: To e…
Psychometric Evaluation of a Revised Instrument for Assessing HIV Knowledge Among SGM Men
Accurate assessment of general HIV and pre-exposure prophylaxis (PrEP) knowledge is essential for evaluating contemporary prevention efforts. This study examined the psychometric properties of a revised HIV and PrEP knowledge instrument for young sexual and gender minority (SGM) men. Data were collected from 1,519 participants (ages 17–29) via an online survey. Of the original 31 items, 7 were removed based on item analysis, and Exploratory Facto…
Pre-Exposure prophylaxis knowledge, use and adherence among a US national sample of women
Pre-exposure prophylaxis (PrEP) is a proven strategy for HIV prevention, yet uptake among women vulnerable to HIV remains low. This study draws on survey data and urine-based adherence testing from the American Women Assessing Risk Epidemiologically (AWARE) study to assess PrEP knowledge, use, and adherence in a behaviorally vulnerable sample. Despite high awareness of PrEP, actual use and willingness to consider PrEP were minimal. Objective adhe…
Medicine (15 works) · Family medicine (8 works) · HIV/AIDS Research and Interventions (8 works) · Nursing (7 works) · Public health (7 works) · Demography (6 works) · Gerontology (6 works) · Internal Medicine (6 works) · Psychology (6 works) · Adolescent Sexual and Reproductive Health (4 works)