Variables

4291 variables.
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Module Label Name Description Type
Heart rate variability (CHRIS baseline) x0ec268 Poincare SD1 Poincare SD1: in Poincare plot, SD1 represents the standard deviation perpendicular to the line-of-identity Float
Heart rate variability (CHRIS baseline) x0ec267 EDR (ECG Derived Respiration) EDR (ECG Derived Respiration), expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec266 LF/HF power (AR) Ratio between LF and HF band powers, with PSD estimated using parametric autoregressive (AR) modeling method Float
Heart rate variability (CHRIS baseline) x0ec265 HF power (n.u.) (AR) Power of HF band in normalised units, HF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in n.u. Float
Heart rate variability (CHRIS baseline) x0ec264 LF power (n.u.) (AR) Power of LF band in normalised units, LF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in n.u Float
Heart rate variability (CHRIS baseline) x0ec262 LF power (%) (AR) Relative power of LF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec260 logtot power (AR) Natural logarithm transformed values of total spectrum power, with PSD estimated using parametric autoregressive (AR) modeling method Float
Heart rate variability (CHRIS baseline) x0ec259 logHF power (AR) Natural logarithm transformed values of HF band, with PSD estimated using parametric autoregressive (AR) modeling method Float
Heart rate variability (CHRIS baseline) x0ec258 logLF power (AR) Natural logarithm transformed values of LF band, with PSD estimated using parametric autoregressive (AR) modeling method Float
Heart rate variability (CHRIS baseline) x0ec237 LF power (Welch) Absolute power of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec256 total power (AR) Absolute power of the total spectrum, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 Float
Migraine (CHRIS baseline) x0mg21 Migraine (since) How many years have you been suffering from headaches? Float
Heart rate variability (CHRIS baseline) x0ec255 HF power (AR) Absolute power of HF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec254 LF power (AR) Absolute power of LF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec253 VLF power (AR) Absolute power of VLF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec252 HF peak (AR) High Frequency (HF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec251 LF peak (AR) Low Frequency (LF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec250 VLF peak (AR) Very Low Frequency (VLF) band peak frequency, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec249 LF-HF power (Welch) Ratio between LF and HF band powers, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method Float
Heart rate variability (CHRIS baseline) x0ec248 HF power (n.u.) (Welch) Power of HF band in normalised units, HF [n.u.] = LF [ms2] / (total power [ms2] - VLF [ms2]) x 100%, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in n.u. Float
Heart rate variability (CHRIS baseline) x0ec246 HF power (%) (Welch) Relative power of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec245 LF power (%) (Welch) Relative power of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec244 VLF power (%) (Welch) Relative power of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec243 logtot power (Welch) Natural logarithm transformed values of total spectrum power, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method Float
Heart rate variability (CHRIS baseline) x0ec242 logHF power (Welch) Natural logarithm transformed values of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method Float
Blood pressure (CHRIS baseline) x0bp11 Systolic blood pressure, CNAP Systolic blood pressure (mean of 3 measurements) Float
Heart rate variability (CHRIS baseline) x0ec241 logLF power (Welch) Natural logarithm transformed values of LF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method Float
Heart rate variability (CHRIS baseline) x0ec239 total power (Welch) Absolute power of the total spectrum, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec238 HF power (Welch) Absolute power of HF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec236 VLF power (Welch) Absolute power of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in ms^2 Float
Heart rate variability (CHRIS baseline) x0ec235 HF peak (Welch) High Frequency (HF) band peak frequency, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec234 LF peak (Welch) Low Frequency (LF) band peak frequency, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram method, expressed in Hz Float
Heart rate variability (CHRIS baseline) x0ec232 DCmod DCmod: modified Deceleration Capacity, computed according to the formula given in Nasario-Junior et al. 2014, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec231 ACmod ACmod: modified Acceleration Capacity, computed according to the formula given in Nasario-Junior et al. 2014, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec229 AC AC: Acceleration Capacity captures the shortening of RR interval within 2-4 successive beats. It is computed as a four point difference from the acceleration PRSA signal (phase-rectified signal averaging), expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec227 HRV triangular index HRV triangular index: integral of the histogram (i.e. total number of RR intervals) divided by the height of the histogram computed with a bin width of 1/128 seconds Float
Heart rate variability (CHRIS baseline) x0ec225 max HR Maximum HR computed using N=5 beat moving average Float
Heart rate variability (CHRIS baseline) x0ec224 min HR Minimum HR computed using N=5 beat moving average Float
Heart rate variability (CHRIS baseline) x0ec223 std HR Standard deviation of heart rate Float
Heart rate variability (CHRIS baseline) x0ec222 mean HR Mean heart rate, expressed in beats per minute Float
Heart rate variability (CHRIS baseline) x0ec221 SDNNI SDNNI: Mean of the standard deviations of RR intervals in 5-min segments, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec220 SDANN SDANN: Standard deviation of the averages of RR intervals in 5-min segments, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec219 pNN50 pNN50: NN50 divided by the total number of RR intervals Float
Heart rate variability (CHRIS baseline) x0ec217 RMSSD RMSSD: Square root of the mean squared differences between successive RR intervals, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec216 SDNN SDNN: Standard deviation of RR intervals, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec215 mean RR Mean value of RR intervals, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec214c SNS param: nSD2 Third parameter used for SNS index calculation: SD2 normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec214b SNS param: nSI Second parameter used for SNS index calculation: SI normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec214a SNS param: nMeanHR First parameter used for SNS index calculation: MeanHR normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec214 SNS index SNS index Float
Heart rate variability (CHRIS baseline) x0ec213c PNS param: nSD1 Third parameter used for PNS index calculation: SD1 normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec213b PNS param: nRMSSD Second parameter used for PNS index calculation: RMSSD normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec213a PNS param: nMeanRR First parameter used for PNS index calculation: MeanRR normalized by scaling with the standard deviations of normal population Float
Heart rate variability (CHRIS baseline) x0ec213 PNS index PNS index Float
Heart rate variability (CHRIS baseline) x0ec210 number of corrected beats (%) Number of corrected beats, expressed as percentage of the total number of beats Float
Heart rate variability (CHRIS baseline) x0ec207b t_RR end Time point of the last beat in the RR series, expressed in seconds Float
Heart rate variability (CHRIS baseline) x0ec207a t_RR start Time point of the first beat in the RR series, expressed in seconds Float
Heart rate variability (CHRIS baseline) x0ec204 effective length (%) Effective data length, expressed as percentage of the total length Float
Heart rate variability (CHRIS baseline) x0ec203 effective length Effective length of the ECG which is used for HRV analysis, expressed in seconds Float
Heart rate variability (CHRIS baseline) x0ec202 total length of the ECG Total length of the ECG recording, expressed in seconds Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0re02 Respiratory Sinus Arrhythmia (RSA) (open) Respiratory Sinus Arrhythmia (RSA) (open) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0re01 Respiratory Sinus Arrhythmia (RSA) (filtered) Respiratory Sinus Arrhythmia (RSA) (filtered) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec11 Low Frequency (LF) power Low Frequency (LF) power Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec42 Maximum Heart Rate maximum HR Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec41 Minimum Heart Rate minimum HR Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec25 Correlation coefficient of HRTS (KS) Correlation coefficient of HRTS (KS) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec24 HRTS regression coefficient / coefficient of determination HRTS regression coefficient / coefficient of determination Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec23 Heart Rate Turbulence Slope (HRTS) Heart Rate Turbulence Slope (HRTS) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec21 Heart Rate Turbulence Onset (HRTO) Heart Rate Turbulence Onset (HRTO) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec20 DFA alpha1 offset DFA alpha1 offset Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec19 Short term scaling exponent of detrended fluctuation analysis (DFA alpha1) Short term scaling exponent of detrended fluctuation analysis (DFA alpha1) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec18 Standard deviation (diagonally or longitudinal of the angle bisector) in Poincaré plot Standard deviation (diagonally or longitudinal of the angle bisector) in Poincaré plot Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec16 Power-law relationship of Heart Rate Variability Power-law relationship of Heart Rate Variability Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec13 High Frequency (HF) power High Frequency (HF) power Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec43 Mean Heart Rate mean HR Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec06 Square Root of the Mean Squared Differences of successive NN intervals (RMSSD) Square Root of the Mean Squared Differences of successive NN intervals (RMSSD) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec05 Standard Deviation of the average NN intervals in each 5 min segment of the record (SDANN) Standard Deviation of the average NN intervals in each 5 min segment of the record (SDANN) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec04 Integral of the density distribution (HRVI) Integral of the density distribution (HRVI) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec02 Acceleration Capacity (AC) Acceleration Capacity (AC) Float
Heart rate variability, cardiologist curated (CHRIS baseline) x0ec01 Deceleration Capacity (DC) Deceleration Capacity (DC) Float
Iron metabolism (CHRIS baseline) x0he02 Hepcidin-24 Hepcidin-24 Float
Nutrient intake (CHRIS baseline) x0nu146 Total daily trans poly /100g food Total daily trans poly /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu145 Total daily unknown C22 poly /100g food Total daily unknown C22 poly /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu142 Total daily cis n-3 C22:5 /100g food Total daily cis n-3 C22:5 /100g food (g) Float
Anthropometry (CHRIS baseline) x0an04 Body Fat Body Fat Float
Nutrient intake (CHRIS baseline) x0nu141 Total daily C22:5 /100g food Total daily C22:5 /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu140 Total daily cis n-6 C22:4 /100g food Total daily cis n-6 C22:4 /100g food (g) Float
Anthropometry (CHRIS baseline) x0an03a Body Mass Index Body Mass Index Float
Nutrient intake (CHRIS baseline) x0nu139 Total daily C22:4 /100g food Total daily C22:4 /100g food (g) Float
Anthropometry (CHRIS baseline) x0an01 Height Height Float
Pain pressure threshold (CHRIS baseline) x0am01 Pressure pain measurement Pressure pain measurement Float
Nutrient intake (CHRIS baseline) x0nu137 Total daily cis n-6 C22:2 /100g food Total daily cis n-6 C22:2 /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu136 Total daily C22:2 /100g food Total daily C22:2 /100g food (g) Float
Blood measurements (CHRIS baseline) x0lp86b estimated Glomerular filtration rate (eGFR) MDRD4 estimated Glomerular filtration rate (eGFR) MDRD4 Float
Blood measurements (CHRIS baseline) x0lp86a estimated Glomerular filtration rate (eGFR) CKDEPI crea estimated Glomerular filtration rate (eGFR) CKDEPI crea Float
Nutrient intake (CHRIS baseline) x0nu135 Total daily cis n-3 C21:5 /100g food Total daily cis n-3 C21:5 /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu134 Total daily C21:5 /100g food Total daily C21:5 /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu133 Total daily unknown C20 poly /100g food Total daily unknown C20 poly /100g food (g) Float
Nutrient intake (CHRIS baseline) x0nu132 Total daily cis n-3 C20:5 /100g food Total daily cis n-3 C20:5 /100g food (g) Float
Urine measurements (CHRIS baseline) x0lp64 Albumin, urine Albumin, urine Float
4291 variables.