Variables

4291 variables.
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Module Label Name Description Type
Heart failure (CHRIS baseline) x0hf07c ECG: Conspicuous findings Where there conspicuous findings? Categorical
Heart failure (CHRIS baseline) x0hf08d Heart failure (treated last 12 months) Were you treated for this within the last 12 months? Categorical
Heart failure (CHRIS baseline) x0hf05b Myocardial disease (since) Since when? (age) Integer
Heart failure (CHRIS baseline) x0hf04b Myocarditis (since) Since when? (age) Integer
Heart failure (CHRIS baseline) x0hf03b Swollen legs/water in the legs (since) Since when? (age) Integer
Heart failure (CHRIS baseline) x0hf02b Pulmonary edema (since) Since when? (age) Integer
Heart failure (CHRIS baseline) x0hf01b Dyspnea/shortness of breath (since) Since when? (age) Integer
Heart failure (CHRIS baseline) x0hf08b Heart failure (age at diagnosis) In which year was it diagnosed for the first time? (age) Integer
Heart failure (CHRIS baseline) x0hfver Heart failure version Heart failure version Categorical
Heart failure (CHRIS baseline) x0hfn1b Heart failure notes elaborated (symptoms) Heart failure notes elaborated (symptoms) Character
Heart failure (CHRIS baseline) x0hfn4b Heart failure notes elaborated (heart failure) Heart failure notes elaborated (heart failure) Character
Heart failure (CHRIS baseline) x0hfn2b Heart failure notes elaborated (diseases) Heart failure notes elaborated (diseases) Character
Heart failure (CHRIS baseline) x0hfn3b Heart failure notes elaborated (ecg) Heart failure notes elaborated (ECG) Character
Heart failure (CHRIS baseline) x0hfnoteb Heart failure notes elaborated Heart failure notes elaborated Character
Heart failure (CHRIS baseline) x0hf08c Heart failure (last 12 months) Have you had a heart failure within the last 12 months? Categorical
Heart failure (CHRIS baseline) x0hf06 Heart defect Have you ever been told that you have a heart defect (as a child)? Categorical
Heart failure (CHRIS baseline) x0hf08 Heart failure (diagnosed) Has a doctor ever told you that you have a heart failure? Categorical
Heart failure (CHRIS baseline) x0hf07 ECG Has a doctor ever performed an ECG on you (except surgical preparation or sport competitions)? Categorical
Heart failure (CHRIS baseline) x0hf07b ECG (age) Do you remember in which year the ECG showed conspicuous findings for the first time? (age) Integer
Heart failure (CHRIS baseline) x0hf03 Swollen legs/water in the legs Do you often have swollen legs, because of 'water in the legs'? Categorical
Heart failure (CHRIS baseline) x0hf01 Dyspnea/shortness of breath Do you have shortness of breath during exercise e.g. when climbing stairs? Categorical
Heart failure (CHRIS baseline) x0hf04 Myocarditis Do you have myocarditis? Categorical
Heart failure (CHRIS baseline) x0hf05 Myocardial disease Do you have a myocardial disease? (e.g. hypertrophic cardiomyopathy) Categorical
Heart failure (CHRIS baseline) x0hf02 Pulmonary edema Do you have 'water in the lung' (pulmonary edema)? Categorical
Heart failure (CHRIS baseline) x0hf06a2 Heart defect elaborated (description/free text) Describe the problem as accurately as possible (elaborated) Character
Heart failure (CHRIS baseline) x0hf05c2 Myocardial disease elaborated (description/free text) Describe the disease as accurately as possible (elaborated) Character
Heart failure (CHRIS baseline) x0hf04c2 Myocarditis elaborated (description/free text) Describe the disease as accurately as possible (elaborated) Character
Heart rate variability (CHRIS baseline) x0ec219 pNN50 pNN50: NN50 divided by the total number of RR intervals 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) x0ec233 VLF peak (Welch) Very Low Frequency (VLF) 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) x0ec208 total number of beats Total number of beats Integer
Heart rate variability (CHRIS baseline) x0ec202 total length of the ECG Total length of the ECG recording, expressed in seconds 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) 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) 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) x0ec228 TINN TINN: baseline width of the RR histogram evaluated through triangular interpolation Integer
Heart rate variability (CHRIS baseline) x0ec205a segment start Start point of the data segment which is used for HRV analysis, expressed in seconds Integer
Heart rate variability (CHRIS baseline) x0ec223 std HR Standard deviation of heart rate 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) 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) x0ec273 Sample Entropy Sample Entropy: similar to ApEn, but it presents some differences in the calculation Float
Heart rate variability (CHRIS baseline) x0ec214 SNS index SNS index Float
Heart rate variability (CHRIS baseline) x0ec226 SI (Stress Index) SI: Baevsky stress index, computed according to the formula given in Baevsky 2009, is a geometric measure of HRV reflecting cardiovascular system stress 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) x0ec216 SDNN SDNN: Standard deviation of RR intervals, 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) 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) 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) x0ec263 HF power (%) (AR) Relative power of HF band, with PSD estimated using parametric autoregressive (AR) modeling method, expressed in ms^2 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) x0ec261 VLF power (%) (AR) Relative power of VLF band, with PSD estimated using parametric autoregressive (AR) modeling 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) 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) 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) x0ec277 RPA recurrence rate RPA recurrence rate: Recurrence Plot Analysis is another approach for analyzing the complexity of the RR series, which consists in creating a symmetrical matrix of zeros and ones. The recurrence rate (REC) is defined as the ratio of ones and zeros in this RP matrix Float
Heart rate variability (CHRIS baseline) x0ec279 RPA divergence RPA divergence: Recurrence Plot Analysis is another approach for analyzing the complexity of the RR series, which consists in creating a symmetrical matrix of zeros and ones. The divergence (DIV) is defined as the inverse of Lmax Float
Heart rate variability (CHRIS baseline) x0ec278 RPA determinism RPA determinism: Recurrence Plot Analysis is another approach for analyzing the complexity of the RR series, which consists in creating a symmetrical matrix of zeros and ones. The determinism (DET) is defined as the percentage of recurrence points which form diagonal lines Float
Heart rate variability (CHRIS baseline) x0ec282 RPA Shannon Entropy RPA Shannon Entropy: it is the entropy of the probability distribution of the diagonal line lengths Float
Heart rate variability (CHRIS baseline) x0ec281 RPA Lmean RPA Lmean: Recurrence Plot Analysis is another approach for analyzing the complexity of the RR series, which consists in creating a symmetrical matrix of zeros and ones. Lmean is the average diagonal line length Float
Heart rate variability (CHRIS baseline) x0ec280 RPA Lmax RPA Lmax: Recurrence Plot Analysis is another approach for analyzing the complexity of the RR series, which consists in creating a symmetrical matrix of zeros and ones. Lmax is maximum line length of the diagonal lines Integer
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) 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) x0ec247 LF power (n.u.) (Welch) Power of LF band in normalised units, LF [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) 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) 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) x0ec269 Poincare SD2 Poincare SD2: in Poincare plot, SD2 represents the standard deviation along the line-of-identity Float
Heart rate variability (CHRIS baseline) x0ec270 Poincare SD2/SD1 Poincare SD2/SD1: ratio between SD2 and SD1 Float
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) x0ec213 PNS index PNS index Float
Heart rate variability (CHRIS baseline) x0ec211 number of noise segments Number of noise segments Integer
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) x0ec209 number of corrected beats Number of corrected beats Integer
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) 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) x0ec257 logVLF power (AR) Natural logarithm transformed values of VLF band, with PSD estimated using parametric autoregressive (AR) modeling method Float
Heart rate variability (CHRIS baseline) x0ec240 logVLF power (Welch) Natural logarithm transformed values of VLF band, with PSD estimated using Fast Fourier transformation (FFT) based Welch's periodogram 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) 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) 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) 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
Heart rate variability (CHRIS baseline) x0ec218 NN50 NN50: Number of successive RR interval pairs that differ more than 50 ms Integer
Heart rate variability (CHRIS baseline) x0ec224 min HR Minimum HR computed using N=5 beat moving average Float
Heart rate variability (CHRIS baseline) x0ec215 mean RR Mean value of RR intervals, expressed in milliseconds Float
Heart rate variability (CHRIS baseline) x0ec222 mean HR Mean heart rate, expressed in beats per minute Float
Heart rate variability (CHRIS baseline) x0ec225 max HR Maximum HR computed using N=5 beat moving average Float
Heart rate variability (CHRIS baseline) x0ec283i MSE (t=9) MSE (t=9): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 9 Float
Heart rate variability (CHRIS baseline) x0ec283h MSE (t=8) MSE (t=8): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 8 Float
Heart rate variability (CHRIS baseline) x0ec283g MSE (t=7) MSE (t=7): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 7 Float
Heart rate variability (CHRIS baseline) x0ec283f MSE (t=6) MSE (t=6): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 6 Float
Heart rate variability (CHRIS baseline) x0ec283e MSE (t=5) MSE (t=5): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 5 Float
Heart rate variability (CHRIS baseline) x0ec283d MSE (t=4) MSE (t=4): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 4 Float
Heart rate variability (CHRIS baseline) x0ec283c MSE (t=3) MSE (t=3): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 3 Float
Heart rate variability (CHRIS baseline) x0ec283t MSE (t=20) MSE (t=20): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 20 Float
Heart rate variability (CHRIS baseline) x0ec283b MSE (t=2) MSE (t=2): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 2 Float
Heart rate variability (CHRIS baseline) x0ec283s MSE (t=19) MSE (t=19): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 19 Float
Heart rate variability (CHRIS baseline) x0ec283r MSE (t=18) MSE (t=18): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 18 Float
Heart rate variability (CHRIS baseline) x0ec283q MSE (t=17) MSE (t=17): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 17 Float
Heart rate variability (CHRIS baseline) x0ec283p MSE (t=16) MSE (t=16): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 16 Float
Heart rate variability (CHRIS baseline) x0ec283o MSE (t=15) MSE (t=15): Multi Scale Entropy, extension of SampEn to multiple time scales, here calculated for time scale factor equal to 15 Float
4291 variables.