Cardiology Research and Practice

Research Article

A Classification System to Detect Congestive Heart Failure Using Second-Order Difference Plot of RR Intervals

Table 1

𝑇 test results for C T M ( 𝑟 ) , 𝐷 ( 𝑟 ) , C C T M 1 ( 𝑟 ) , C C T M 2 ( 𝑟 ) , C C T M 3 ( 𝑟 ) , C C T M 4 ( 𝑟 ) , and SDRR. The 𝑟 value corresponds to the lowest value of 𝑝 for each of these measures.
Measure usedr 𝑝 (30000) 𝑝 (70000) c i (30000) c i (70000)
C T M ( 𝑟 ) 0.0156.637.5688 [ − 0 . 3 6 6 6 − 0 . 2 0 6 7 ] [ − 0 . 3 9 6 5 − 0 . 2 4 1 5 ]
( − 1 0 ) ( − 1 2 )
𝐷 ( 𝑟 ) 0.0353.43143.1584 [ 0 . 0 0 3 9 0 . 0 0 6 3 ] [ 0 . 0 0 4 3 0 . 0 0 6 6 ]
( − 1 2 ) ( − 1 4 )
C C T M 1 ( 𝑟 ) 0.0153.58342.3475 [ − 0 . 0 7 4 1 − 0 . 0 3 8 0 ] [ − 0 . 0 8 0 8 − 0 . 0 4 6 5 ]
( − 8 ) ( − 1 0 )
C C T M 2 ( 𝑟 ) 0.0154.50381.1636 [ − 0 . 1 0 0 4 − 0 . 0 5 4 3 ] [ − 0 . 1 1 0 2 − 0 . 0 6 4 2 ]
( − 9 ) ( − 1 0 )
C C T M 3 ( 𝑟 ) 0.0151.90552.5181 [ − 0 . 0 9 7 2 − 0 . 0 5 3 6 ] [ − 0 . 1 0 1 5 − 0 . 0 6 0 7 ]
( − 9 ) ( − 1 1 )
C C T M 4 ( 𝑟 ) 0.0153.59531.1240 [ − 0 . 1 0 0 2 − 0 . 0 5 4 5 ] [ − 0 . 1 0 9 4 − 0 . 0 6 3 8 ]
( − 9 ) ( − 1 0 )
S D R R 3.74326.0420 [ 0 . 0 0 9 2 0 . 0 3 0 3 ] [ 0 . 0 1 2 3 0 . 0 3 3 9 ]
( − 4 ) ( − 5 )