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Section

Device Data.Arterial stiffness

Data summary

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
pwv_result_type [factor]
  1. Insufficient pulse/signal
  1. False nails/varnish
  1. Other health reasons
  1. Test completed [Results a
449 ( 2.1% )
2 ( 0.0% )
3 ( 0.0% )
20914 ( 97.9% )
3884 (15.4%)
pwv_test_time [POSIXct, POSIXt]
min : 2002-01-14 03:18:05
med : 2014-03-16 03:50:17
max : 2021-03-14 04:05:53
range : 19y 2m 0d 0H 47M 48S
21354 distinct values 3884 (15.4%)
pwv_heart_rate [integer]
Mean (sd) : 76.3 (11.8)
min ≤ med ≤ max:
35 ≤ 75 ≤ 141
IQR (CV) : 15 (0.2)
98 distinct values 4338 (17.2%)
pwv_reflection_index [integer]
Mean (sd) : 71.5 (53.7)
min ≤ med ≤ max:
-479 ≤ 71 ≤ 1690
IQR (CV) : 16 (0.8)
322 distinct values 4338 (17.2%)
pwv_peak2peak_time [integer]
Mean (sd) : 178.3 (88.3)
min ≤ med ≤ max:
-367 ≤ 162 ≤ 2547
IQR (CV) : 64 (0.5)
604 distinct values 4338 (17.2%)
pwv_si_x100 [integer]
Mean (sd) : 986.9 (408.8)
min ≤ med ≤ max:
-14000 ≤ 974 ≤ 18536
IQR (CV) : 370 (0.4)
1610 distinct values 4338 (17.2%)
pwv_maxpos [integer]
Mean (sd) : 25 (4.8)
min ≤ med ≤ max:
6 ≤ 26 ≤ 66
IQR (CV) : 5 (0.2)
51 distinct values 4338 (17.2%)
pwv_notch_pos [integer]
Mean (sd) : 45.5 (5.6)
min ≤ med ≤ max:
20 ≤ 46 ≤ 88
IQR (CV) : 7 (0.1)
60 distinct values 4338 (17.2%)
pwv_shoulder_pos [integer]
Mean (sd) : 24.2 (5.2)
min ≤ med ≤ max:
6 ≤ 25 ≤ 66
IQR (CV) : 6 (0.2)
51 distinct values 4338 (17.2%)
pwv_no_notch [factor]
  1. Notch found
  1. No notch found
14853 ( 71.0% )
6061 ( 29.0% )
4338 (17.2%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
has_artery_results [factor]
  1. No
  1. Yes
3884 ( 15.4% )
21368 ( 84.6% )
0 (0.0%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27




International Coordinating Centre, China Kadoorie Biobank (CKB), CTSU, Nuffield Department of Population Health, University of Oxford Old Road Campus, Headington, Oxford, OX3 7LF

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Page generated: 27-02-2024