General Practice
Statistics notes: Calculating correlation coefficients with repeated observations: Part 1—correlation within subjects
BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6977.446 (Published 18 February 1995) Cite this as: BMJ 1995;310:446
Related articles
- Research Published: 20 September 2011; BMJ 343 doi:10.1136/bmj.d5531
- Analysis Published: 10 February 2016; BMJ 352 doi:10.1136/bmj.i563
See more
- Population attributable fractionBMJ February 22, 2018, 360 k757; DOI: https://doi.org/10.1136/bmj.k757
- Statistics Notes: Percentage differences, symmetry, and natural logarithmsBMJ August 16, 2017, 358 j3683; DOI: https://doi.org/10.1136/bmj.j3683
- Statistics Notes: What is a percentage difference?BMJ August 16, 2017, 358 j3663; DOI: https://doi.org/10.1136/bmj.j3663
- Inverse probability weightingBMJ January 15, 2016, 352 i189; DOI: https://doi.org/10.1136/bmj.i189
- Statistics Notes: Bootstrap resampling methodsBMJ June 02, 2015, 350 h2622; DOI: https://doi.org/10.1136/bmj.h2622
Cited by...
- The influence of stimulus and behavioral histories on predictive control of smooth pursuit eye movements
- Polar Vantage and Oura physical activity and sleep trackers: A validation and comparison study
- An Age-Specific Atlas for Delineation of White Matter Pathways in Children Aged 6-8 Years
- Boosting Brain Signal Variability Underlies Liberal Shifts in Decision Bias
- The acute-to-chronic workload ratio: an inaccurate scaling index for an unnecessary normalisation process?
- Unconscious learning and automatic inhibition are accompanied by frontal theta and sensorimotor interactions
- Neural mechanisms underlying the precision of visual working memory
- Effect of stimulus polarity on detection thresholds in cochlear implant users: relationships with average threshold, gap detection, and rate discrimination
- The separation of auditory experience and the temporal structure of MEG recorded brain activity
- Prolonged Prothrombotic Effects of Antecedent Hypoglycemia in Individuals With Type 2 Diabetes
- Renin-Angiotensin-Aldosterone Profiles in Pregnant Women With Chronic Hypertension
- Parietal-Occipital Interactions Underlying Control- and Representation-Related Processes in Working Memory for Nonspatial Visual Features
- Gut bacteria selectively promoted by dietary fibers alleviate type 2 diabetes
- Appetite, food intake and gut hormone responses to intense aerobic exercise of different duration
- Whole-body heat stress and exercise stimulate the appearance of platelet microvesicles in plasma with limited influence of vascular shear stress
- Effects of randomized whey-protein loads on energy intake, appetite, gastric emptying, and plasma gut-hormone concentrations in older men and women
- Diurnal variations in luminal and stromal areas of choroid in normal eyes
- Relationship Between Ktrans and K1 with Simultaneous Versus Separate MR/PET in Rabbits with VX2 Tumors
- Choroidal thickness maps from spectral domain and swept source optical coherence tomography: algorithmic versus ground truth annotation
- Contributions of upper gut hormones and motility to the energy intake-suppressant effects of intraduodenal nutrients in healthy, lean men - a pooled-data analysis
- Superior Intraparietal Sulcus Controls the Variability of Visual Working Memory Precision
- Circadian misalignment increases cardiovascular disease risk factors in humans
- An open letter to The BMJ editors on qualitative research
- The Glucagon-Like Peptide 1 Receptor Agonist Exenatide Inhibits Small Intestinal Motility, Flow, Transit, and Absorption of Glucose in Healthy Subjects and Patients With Type 2 Diabetes: A Randomized Controlled Trial
- Comparative effects of intraduodenal whey protein hydrolysate on antropyloroduodenal motility, gut hormones, glycemia, appetite, and energy intake in lean and obese men
- Acute load-dependent effects of oral whey protein on gastric emptying, gut hormone release, glycemia, appetite, and energy intake in healthy men
- Dopamine effects on evidence gathering and integration
- Monitoring Dead Space in Mechanically Ventilated Children: Volumetric Capnography Versus Time-Based Capnography
- Effects of intraduodenal infusion of the branched-chain amino acid leucine on ad libitum eating, gut motor and hormone functions, and glycemia in healthy men
- Effects of intraduodenal protein on appetite, energy intake, and antropyloroduodenal motility in healthy older compared with young men in a randomized trial
- Safety and Immunogenicity of a Vero Cell Culture-Derived Whole-Virus H5N1 Influenza Vaccine in Chronically Ill and Immunocompromised Patients
- Glucagon-Like Peptide 1 Attenuates the Acceleration of Gastric Emptying Induced by Hypoglycemia in Healthy Subjects
- Comparative Effects of Prolonged and Intermittent Stimulation of the Glucagon-Like Peptide 1 Receptor on Gastric Emptying and Glycemia
- Hygrometric Properties of Inspired Gas and Oral Dryness in Patients With Acute Respiratory Failure During Noninvasive Ventilation
- Low-Fat Milk Ingestion Prevents Postprandial Hyperglycemia-Mediated Impairments in Vascular Endothelial Function in Obese Individuals with Metabolic Syndrome
- Effects of intraduodenal lipid and protein on gut motility and hormone release, glycemia, appetite, and energy intake in lean men
- Comprehensive Validation of Cardiovascular Magnetic Resonance Techniques for the Assessment of Myocardial Extracellular Volume
- Distributed Patterns of Activity in Sensory Cortex Reflect the Precision of Multiple Items Maintained in Visual Short-Term Memory
- Parkinson's Disease: Increased Motor Network Activity in the Absence of Movement
- Progression-Free Survival as a Surrogate Endpoint for Median Overall Survival in Metastatic Colorectal Cancer: Literature-Based Analysis from 50 Randomized First-Line Trials
- Slowly and rapidly digestible starchy foods can elicit a similar glycemic response because of differential tissue glucose uptake in healthy men
- Intraduodenal protein modulates antropyloroduodenal motility, hormone release, glycemia, appetite, and energy intake in lean men
- Worldwide impact of economic cycles on suicide trends over 3 decades: differences according to level of development. A mixed effect model study
- Slow updating of the achromatic point after a change in illumination
- Postprandial Hyperglycemia Impairs Vascular Endothelial Function in Healthy Men by Inducing Lipid Peroxidation and Increasing Asymmetric Dimethylarginine:Arginine
- The effects of hourly differences in air pollution on the risk of myocardial infarction: case crossover analysis of the MINAP database
- Manipulating the content of dynamic natural scenes to characterize response in human MT/MST
- Preferential Hyperacuity Perimeter as a Functional Tool for Monitoring Exudative Age-Related Macular Degeneration in Patients Treated by Intravitreal Ranibizumab
- Diurnal Variations in Axial Length, Choroidal Thickness, Intraocular Pressure, and Ocular Biometrics
- Preferential hyperacuity perimeter in assessing responsiveness to ranibizumab therapy for exudative age-related macular degeneration
- Noninvasive Estimation of the Rate of Relaxation by the Analysis of Intraventricular Pressure Gradients
- Fasting reduces plasma proprotein convertase, subtilisin/kexin type 9 and cholesterol biosynthesis in humans
- Pooled-data analysis identifies pyloric pressures and plasma cholecystokinin concentrations as major determinants of acute energy intake in healthy, lean men
- Constipation Is Relieved More by Rye Bread Than Wheat Bread or Laxatives without Increased Adverse Gastrointestinal Effects
- Influence of Changes in Blood Pressure on Cerebral Perfusion and Oxygenation
- Dopamine Cell Implantation in Parkinson's Disease: Long-Term Clinical and 18F-FDOPA PET Outcomes
- Diurnal Variation of Axial Length, Intraocular Pressure, and Anterior Eye Biometrics
- Serum TSH and serum thyroid peroxidase antibody fluctuate in parallel and high urinary iodine excretion predicts subsequent thyroid failure in a 1-year study of patients with untreated subclinical hypothyroidism
- Modulation of metabolic brain networks after subthalamic gene therapy for Parkinson's disease
- Coronary artery overexpansion increases neointimal hyperplasia after stent placement in a porcine model
- Longitudinal Changes of Brain-Type Natriuretic Peptide in Preterm Neonates
- The Rate of Intestinal Glucose Absorption Is Correlated with Plasma Glucose-Dependent Insulinotropic Polypeptide Concentrations in Healthy Men
- Variable benefit in neuropsychological function in HIV-infected HAART-treated patients
- How Many Patients? How Many Limbs? Analysis of Patients or Limbs in the Orthopaedic Literature: A Systematic Review
- Doppler-Derived Ejection Intraventricular Pressure Gradients Provide a Reliable Assessment of Left Ventricular Systolic Chamber Function
- Measurement of Ventricular Torsion by Two-Dimensional Ultrasound Speckle Tracking Imaging
- Interstitial Glucose Level Is a Significant Predictor of Energy Intake in Free-Living Women with Healthy Body Weight
- Assessment of Left Ventricular Torsional Deformation by Doppler Tissue Imaging: Validation Study With Tagged Magnetic Resonance Imaging
- Energy intake and appetite are related to antral area in healthy young and older subjects
- Dietary Fat Type Affects Vitamins C and E and Biomarkers of Oxidative Status in Peripheral and Brain Tissues of Golden Syrian Hamsters
- Effect of orange juice intake on vitamin C concentrations and biomarkers of antioxidant status in humans
- Effect of nebulised L- and D-arginine on exhaled nitric oxide in steroid naive asthma
- Blood Pressure Does Not Rise Before the Onset of Microalbuminuria in Children Followed From Diagnosis of Type 1 Diabetes
- Changes in pulmonary arterial pressure in preterm infants with chronic lung disease
- Response of vitamin K status to different intakes and sources of phylloquinone-rich foods: comparison of younger and older adults
- Giardia intestinalis Is Unlikely To Be a Major Cause of the Poor Growth of Rural Gambian Infants
- High Glycemic Index Foods, Overeating, and Obesity
- Changes in oxygenation and pulmonary haemodynamics in preterm infants treated with inhaled nitric oxide
- Statistics Notes: Units of analysis
- Statistics notes: Calculating correlation coefficients with repeated observations: Part 2--correlation between subjects