Knee Pain - Past 30 Days
Multicenter Osteoarthritis Study (MOST) Baseline Telephone Screening Interview, Screening visit, 2003, Grant cycles 1 & 2.
Lab-based Urine Drug Analysis
Substance Abuse and Mental Health Services Administration (SAMHSA), drug cut-off concentrations for workplace testing
Lactate Dehydrogenase Level
National Health and Nutrition Examination Survey Questionnaire (NHANES), Laboratory Procedures Manual, 2011
Left Ventricular Global Longitudinal Strain by Speckle Tracking Echocardiography
Voigt, et al. Definitions for a common standard for 2D speckle tracking echocardiography: Consensus document of the EACVI/ASE/Industry Task Force to standardize deformation imaging. European Heart Journal - Cardiovascular Imaging, 16 (1), 1-11.
Life Events - Adult
Traumatic Life Events Questionnaire (TLEQ)
Life Space
The Life Space Questionnaire
Lipid Profile
Coronary Artery Risk Development in Young Adults (CARDIA), Y20 CARDIA VII & Framingham Heart Study (FHS), Generation 3
Liver Function - Assay
National Health and Nutrition Examination Survey Questionnaire (NHANES), Laboratory procedures manual, 2007
Local Tobacco Control Public Policies
American Nonsmokers Rights Foundation (ANRF) U.S. Tobacco Control Laws Database, 2023
Long COVID - Daily Living
Sequelae in Adults at 6 Months After COVID-19 Infection
Long COVID - Multisystem Inflammatory Syndrome - Child
Global COVID-19 Clinical Platform: Case Report Form for Suspected Cases of Multisystem Inflammatory Syndrome (MIS) in Children and Adolescents Temporally Related to COVID-19
Lung Function - Diffusion Capacity
MacIntyre, N., et al. Standardization of the single-breath determination of carbon monoxide uptake in the lung. EUR RESPIR J, 2005
Lung Function - Lung Volume
Wanger, J. et al. Standardization of the measurement of lung volumes. EUR RESPIR J, 2005
Male Fertility Status
WHO Laboratory Manual for the Examination and Processing of Human Semen, Fifth Edition, 2010
Male Sexual Function
Study for Future Families & International Index of Erectile Function (IIEF)
Malocclusion
Baltimore Longitudinal Study on Aging (BLSA), Dental Examination
Marital Status of Primary Caregiver
Silent Cerebral Infarct Multi-Center Clinical Trial (SIT), Demographic/Phenotypic Information
Maximum Adult Height
National Health and Nutrition Examination Survey (NHANES), Weight History Questionnaire, 2019-2020
Maximum Adult Weight
National Health and Nutrition Examination Survey (NHANES), Weight History Questionnaire, 2019-2020
Media Use
Population Assessment of Tobacco and Health (PATH) Study [United States] Public-Use Files, Wave 6: Adult Questionnaire (English Version)
Medical History
My Personal Health Record (MyPHR), Adult PHR Form, 2006
Medication Inventory
Multi-Ethnic Study of Arthrosclerosis (MESA), Medications, 2000
Menstrual History
Nurses Health Study (NHS), Black Womens Health Study (BWHS), Study of Women Across the Nation (SWAN)
Mental Health Services Satisfaction
Mental Health Statics Improvement Program (MHSIP), Youth Services Survey (YSS)
Metabolomics
University of Michigan Metabolomics Biomedical Research Core Facility, Metabolomic studies protocol, v.130913
Methods of Quitting Smoking Cigarettes - Adults
Caraballo RS, et al. Quit Methods Used by US Adult Cigarette Smokers, 2014-2016. Prev Chronic Dis, 2017.
Mid-Upper Arm Circumference
National Health and Nutrition Examination Survey (NHANES), Anthropometry Procedures Manual, 2021-2023
Migraine - Adult
American Migraine Study II, Self-Administered Questionnaire for Migraine
Migraine - Children
The Pediatric Migraine Disability Assessment (PedMIDAS)
Minimum Wage
U.S. Department of Labor, State Minimum Wage Laws, 2022
Mode of Conception - Interview
Pregnancy Risk Assessment Monitoring System (PRAMS), Phase 7
Mode of Delivery - Interview
Pregnancy Risk Assessment Monitoring System (PRAMS), Phase 7
Mother and Baby Health
Pregnancy Risk Assessment Monitoring System (PRAMS), 2023 and the Population Assessment of Tobacco and Health Wave 7 Adult Survey
Motivation to Quit - Single Item
Turner, L.R., et al. Motivation and reasons to quit: Predictive validity among adolescent smokers. AM J HEALTH BEHAV, 2004
Myocardial Infarction
Cardiovascular Health Study (CHS), Baseline Medical History Questionnaire & Womens Health Initiative (WHI), Medical History Update
N-terminal Pro-brain Natriuretic Peptide (NT-proBNP)
National Health and Nutrition Examination Survey Questionnaire (NHANES), Laboratory Procedures Manual, 2011
Neighborhood Concentrated Disadvantage
U.S. Census Bureau, 1990 and 2000 Decennial Censuses (SF3); and American Community Survey (ACS), 5-year estimates, 2011-2015 to 2016-2020.
Neighborhood Safety
Mujahid, M. S., et al, Assessing the measurement properties of neighborhood scales: From psychometrics to ecometrics. AM J EPIDEMIOL, 2007
Nicotine Content
Tobacco Laboratory, Nicotine (Total and Unprotonated), Version 03
Nicotine Metabolite Ratio - Serum and Saliva
National Health and Nutrition Examination Survey (NHANES) Cotinine and Hydroxycotinine Analysis
Night Eating
Night Eating Questionnaire© (NEQ)
NIH Stroke Scale (NIHSS)
National Institutes of Health Stroke Scale (NIHSS)
NNAL in Urine
Xia Y, et al. Analysis of the tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol in urine by extraction on a molecularly imprinted polymer column and liquid chromatography/atmospheric pressure ionization tandem mass spectrometry. Anal Chem. , 2005
Non-suicidal Self Injury
The Self-Injurious Thoughts and Behaviors Interview (SITBI)
Number of Natural Teeth
Health Professionals Follow-Up Study (HPFS), Infant Feeding Practices Study II (IFPS-II), Postnatal Month 12
Occupation/Occupational History
National Health and Nutrition Examination Survey (NHANES), 2005-2006
Ocular Exposure to Ultraviolet Light
National Eye Institute (NEI), Age-Related Eye Disease Study (AREDS), Phase II, Sunlight Exposure Questionnaire, 2/9/1996
On-site Urine Drug Screen
Substance Abuse and Mental Health Services Administration (SAMHSA), drug cut-off concentrations, multidrug cup
Oral Glucose Tolerance Test
National Health and Nutrition Examination Survey (NHANES), Oral Glucose Tolerance Test (OGTT) Manual, 2007-2008
Oral Hygiene - Personal Care
Baltimore Longitudinal Study on Aging (BLSA), Dental Examination
Oral Mucosal Lesions
National Health Interview Survey (NHIS), Orofacial Pain, 1989
Ovulation History
University of Pennsylvania, Cancer Risk Evaluation Program, Health History Questionnaire, 9/2006