Retrospective Study
Copyright ©The Author(s) 2023.
World J Gastrointest Surg. Oct 27, 2023; 15(10): 2154-2170
Published online Oct 27, 2023. doi: 10.4240/wjgs.v15.i10.2154
Table 1 Baseline and clinical parameters of patients with ≥ 30% vs < 30% heart rate variability, n (%)
Variable
HRV ≥ 30%
HRV < 30%
χ2
P value
Sex1.8280.18
Female9 (16.36)46 (83.64)
Male13 (9.49)124 (90.51)
Age (yr)0.0980.75
< 605 (14.29)30 (85.71)
≥ 6017 (10.83)140 (89.17)
Smoking status0.5920.44
No20 (12.58)139 (87.42)
Yes2 (6.06)31 (93.94)
Hypertension0.2130.64
No13 (10.66)109 (89.34)
Yes9 (12.86)61 (87.14)
Diabetes0.2990.58
No19 (10.80)157 (89.20)
Yes 3 (18.75)13 (81.25)
Blood type0.9640.81
A9 (12.33)64 (87.67)
AB1 (5.00)19 (95.00)
B5 (11.36)39 (88.64)
O7 (12.73)49 (87.27)
Thyroid function0.0050.95
Normal20 (11.70)151 (88.30)
Abnormal2 (9.52)19 (90.48)
Table 2 Baseline and clinical parameters of patients with ≥ 15% vs < 15% heart rate variability, n (%)
Variable
HRV ≥ 15%
HRV < 15%
χ2
P value
Sex0.0150.90
Female21 (38.18)34 (61.82)
Male51 (37.23)86 (62.77)
Age (yr)1.2320.27
< 6016 (45.71)19 (54.29)
≥ 6056 (35.67)101 (64.33)
Smoking status0.4120.52
No58 (36.48)101 (63.52)
Yes14 (42.42)19 (57.58)
Hypertension0.0060.94
No46 (37.70)76 (62.30)
Yes26 (37.14)44 (62.86)
Diabetes2.6180.11
No63 (35.80)113 (64.20)
Yes9 (56.25)7 (43.75)
Blood type1.8030.61
A27 (36.99)46 (63.01)
AB5 (25.00)15 (75.00)
B17 (38.64)27 (61.36)
O23 (41.82)32 (58.18)
Thyroid function0.2890.59
Normal63 (36.84)108 (63.16)
Abnormal9 (42.86)12 (57.14)
Table 3 Comparison of genotype and allele dissemination of single nucleotide polymorphisms in patients with ≥ 30% vs < 30% heart rate variability, n (%)
SNP
HRV ≥ 30%
HRV < 30%
χ2
P value
OR (95%CI)
TEP1 (rs938886)1.300.52
GG9 (10.00)81 (90.00)1.00 (Reference)
GC12 (14.12)73 (85.88)1.63 (0.63, 4.20)
CC1 (5.88)16 (94.12)0.72 (0.081, 6.39)
0.0160.90
G30 (11.32)235 (88.68)1.00 (Reference)
C14 (11.76)105 (88.24)1.16 (0.58, 2.31)
TEP1 (rs1713449)1.540.46
CC9 (10.11)80 (89.89)1.00 (Reference)
CT12 (14.29)72 (85.71)1.63 (0.63, 4.21)
TT1 (5.26)18 (94.74)0.62 (0.071, 5.43)
0.00010.99
C30 (11.45)232 (88.55)1.00 (Reference)
T14 (11.48)108 (88.52)1.11 (0.56, 2.22)
RECQL5 (rs820196)3.930.14
TT7 (8.05)80 (91.95)1.00 (Reference)
TC14 (16.47)71 (83.53)2.39 (0.90, 6.33)
CC1 (5.00)19 (95.00)0.65 (0.073, 5.72)
0.330.57
T28 (10.81)231 (89.19)1.00 (Reference)
C16 (12.80)109 (87.20)1.27 (0.66, 2.47)
Table 4 Comparison of genotype and allele frequencies of single nucleotide polymorphisms in patients with ≥ 15% vs < 15% heart rate variability, n (%)
SNP
HRV ≥ 15%
HRV < 15%
χ2
P value
OR (95%CI)
TEP1 (rs938886)1.560.46
GG30 (33.33)60 (66.67)1.00 (Reference)
GC34 (40.00)51 (60.00)1.34 (0.72, 2.52)
CC8 (47.06)9 (52.94)1.74 (0.59, 5.15)
1.500.22
G94 (35.47)171 (64.53)1.00 (Reference)
C50 (42.02)69 (57.98)1.30 (0.83, 2.04)
TEP1 (rs1713449)2.020.36
CC29 (32.58)60 (67.42)1.00 (Reference)
CT34 (40.48)50 (59.52)1.42 (0.75, 2.67)
TT9 (47.37)10 (52.63)1.85 (0.66, 5.21)
2.000.16
C92 (35.11)170 (64.89)1.00 (Reference)
T52 (42.62)70 (57.38)1.36 (0.87, 2.13)
RECQL5 (rs820196)6.200.045
TT27 (31.03)60 (68.97)1.00 (Reference)
TC40 (47.06)45 (52.94)1.97 (1.05, 3.70)a
CC5 (25.00)15 (75.00)0.69 (0.22, 2.13)
0.490.48
T94 (36.29)165 (63.71)1.00 (Reference)
C50 (40.00)75 (60.00)1.15 (0.74, 1.78)
Table 5 Association of telomerase-associated protein 1 and RecQ like helicase 5 polymorphisms with heart rate variability ≥ 30% under different inheritance models
Inheritance modelTEP1 (rs938886)
TEP1 (rs1713449)
RECQL5 (rs820196)
OR (95%CI)
P value
OR (95%CI)
P value
OR (95%CI)
P value
Codominant
Aa vs AA1.67 (0.64, 4.31)0.2931.67 (0.65, 4.34)0.2892.35 (0.88, 6.24)0.087
aa vs AA0.62 (0.068, 5.70)0.6750.54 (0.060, 4.84)0.5820.58 (0.065, 5.21)0.628
Dominant (Aa + aa vs AA)1.49 (0.59, 3.76)0.4031.46 (0.58, 3.68)0.4292.02 (0.78, 5.25)0.151
Overdominant (Aa vs AA + aa)1.69 (0.68, 4.24)0.2611.74 (0.69, 4.35)0.2382.54 (0.99, 6.49)0.051
Recessive (aa vs Aa + AA)0.56 (0.067, 4.64)0.5900.48 (0.059, 3.92)0.4940.41 (0.050, 3.27)0.396
Additive (AA vs Aa vs aa)1.18 (0.57, 2.42)0.6571.12 (0.55, 2.27)0.7521.28 (0.65, 2.51)0.472
Table 6 Association of telomerase-associated protein 1 and RecQ like helicase 5 polymorphisms with heart rate variability ≥ 15% under different inheritance models
Inheritance modelTEP1 (rs938886)
TEP1 (rs1713449)
RECQL5 (rs820196)
OR (95%CI)
P value
OR (95%CI)
P value
OR (95%CI)
P value
Codominant
Aa vs AA1.36 (0.72, 2.55)0.3411.43 (0.76, 2.69)0.2712.00 (1.06, 3.76)0.031a
aa vs AA1.31 (0.75, 2.29)0.3451.34 (0.79, 2.28)0.2790.82 (0.46, 1.45)0.492
Dominant (Aa + aa vs AA)1.40 (0.77, 2.56)0.2731.49 (0.81, 2.72)0.1961.64 (0.90, 2.98)0.109
Overdominant (Aa vs AA + aa)1.23 (0.67, 2.23)0.5061.27 (0.70, 2.31)0.4412.10 (1.15, 3.84)0.016b
Recessive (aa vs Aa + AA)1.50 (0.53, 4.25)0.4421.56 (0.58, 4.16)0.3780.50 (0.17, 1.46)0.202
Additive (AA vs Aa vs aa)1.33 (0.83, 2.12)0.2331.38 (0.88, 2.18)0.1661.15 (0.74, 1.80)0.537
Table 7 Association of telomerase-associated protein 1 haplotypes with heart rate variability risk using a 30% heart rate variability cutoff
TEP1 (rs938886)
TEP1 (rs1713449)
Frequency
HRV ≥ 30% (n = 22)
HRV < 30% (n = 170)
OR (95%CI)
P value
GC0.68230 (11.45)232 (88.55)1.00 (Reference)-
CT0.31014 (11.76)105 (88.24)1.15 (0.58, 2.28)0.70
GT0.0080 (00.00)3 (100.00)--
Table 8 Association of telomerase-associated protein 1 haplotypes with heart rate variability risk using a 15% heart rate variability cutoff
TEP1 (rs938886)
TEP1 (rs1713449)
Frequency
HRV ≥ 15% (n = 72)
HRV < 15% (n = 120)
OR (95%CI)
P value
GC0.68292 (35.11)170 (64.89)1.00 (Reference)-
CT0.31050 (42.02)69 (57.98)1.33 (0.85-2.08)0.22
GT0.0082 (66.67)1 (33.33)4.13 (0.37, 46.59)0.25
Table 9 Best single nucleotide polymorphism-single nucleotide polymorphism interaction models identified by generalized multifactor dimensionality reduction with covariable adjustment (heart rate variability cutoff value = 30%)
Best model
Training balanced accuracy
Testing balanced accuracy
Cross-validation consistency
P value
rs8201960.61160.612710/100.032a
rs938886, rs8201960.64950.578210/100.151
rs938886, rs820196, rs17134490.64950.575310/100.168
Table 10 Association analysis of the interaction between different genotypes of single nucleotide polymorphism loci and a risk of heart rate variability cutoff value ≥ 30%
SNP genotypes
HRV ≥ 30% (n = 22)
HRV < 30% (n = 170)
OR (95%CI)
P value
rs938886 rs820196
GGTT3 (6.67)42 (93.33)1.00 (Reference)-
GGTC5 (14.29)30 (85.71)2.91 (0.63, 13.55)0.17
GGCC1 (10.00)9 (90.00)2.19 (0.19, 25.37)0.53
GCTT3 (8.11)34 (91.89)1.65 (0.31, 8.74)0.56
GCTC9 (22.50)31 (77.50)6.16 (1.53, 24.83)0.01a
CCTT1 (20.00)4 (80.00)5.84 (0.46, 74.57)0.17
Others0 (0.00)20 (100.00)--
rs938886 rs820196 rs1713449
GGTTCC 3 (6.82)41 (93.18)1.00 (Reference)-
GGTCCC5 (14.29)30 (85.71)2.97 (0.64, 13.79)0.17
GGCCCC1 (10.00)9 (90.00)2.23 (0.19, 25.87)0.52
GCTTCT 3 (8.33)33 (91.67)1.73 (0.33, 9.18)0.52
GCTCCT9 (22.50)31 (77.50)6.27 (1.56, 25.28)0.01b
CCTTTT1 (20.00)4 (80.00)5.94 (0.47, 75.98)0.17
Others0 (0.00)22 (100.00)--
Table 11 Single nucleotide polymorphism-smoking, single nucleotide polymorphism -hypertension, and single nucleotide polymorphism-thyroid function interaction models in patients with heart rate variability ≥ 30% evaluated with the generalized multifactor dimensionality reduction approach
Best model
Training balanced accuracy
Testing balanced accuracy
CVC
P value
SNP-smoking interaction1
Smoking0.52650.513510/100.263
rs820196-smoking0.62810.602110/100.045a
rs938886-rs820196-smoking0.67030.59478/100.099
SNP-hypertension interaction2
Hypertension0.52920.330810/100.800
rs820196-hypertension0.61170.564810/100.190
rs820196-rs1713449-hypertension0.69960.50638/100.426
SNP-thyroid function interaction3
Thyroid function0.51230.498010/100.194
rs820196-thyroid function 0.62630.589510/100.104
rs938886-rs820196-thyroid function0.66650.57278/100.153
Table 12 Analysis of interaction between rs820196 genotype and smoking in patients with heart rate variability ≥ 30% and < 30%
Smoking
rs820196 genotype
HRV ≥ 30% (n = 22)
HRV < 30% (n = 170)
OR (95%CI)
P value
NoTT6 (7.89)70 (92.11)1.00 (Reference)-
YesTT1 (9.09)10 (90.91)1.47 (0.15, 14.27)0.74
NoTC13 (19.70)53 (80.30)2.91 (1.03, 8.20)0.04a
YesTC1 (5.26)18 (94.74)0.80 (0.088, 7.36)0.85
NoCC1 (5.88)16 (94.12)0.81 (0.089, 7.35)0.85
Other0 (0.00)3 (100.00)--
Table 13 Best single nucleotide polymorphism-single nucleotide polymorphism interaction models identified by generalized multifactor dimensionality reduction with covariable adjustment (heart rate variability cutoff value = 15%)
Best model
Training balanced accuracy
Testing balanced accuracy
CVC
P value
rs8201960.58850.592010/100.039a
rs820196, rs17134490.63010.57989/100.052
rs938886, rs820196, rs17134490.63350.588510/100.066
Table 14 Association analysis of interactions between different genotypes of single nucleotide polymorphism loci and risk of heart rate variability ≥ 15%
SNPs genotypes
HRV ≥ 15% (n = 72)
HRV < 15% (n = 120)
OR (95%CI)
P value
rs820196 rs1713449
TTCC12 (27.27)32 (72.73)1.00 (Reference)-
TTCT10 (27.78)26 (72.22)1.03 (0.38, 2.79)0.95
TTTT5 (71.43)2 (28.57)6.87(1.15, 41.09)0.04a
TCCC15 (42.86)20 (57.14)2.07 (0.79, 5.45)0.14
TCCT22 (55.00)18 (45.00)3.26 (1.30, 8.20)0.01b
TCTT3 (30.00)7 (70.00)1.06 (0.22, 5.06)0.94
CCCC2 (20.00)8 (80.00)0.56 (0.098, 3.21)0.52
CCCT2 (25.00)6 (75.00)0.87 (0.15, 5.11)0.88
CCTT1 (50.00)1 (50.00)2.90 (0.17, 50.84)0.47
rs938886 rs1713449 rs820196
GGCC TT12 (27.27)32 (72.73)1.00 (Reference)
GGCC TC15 (42.86)20 (57.14)1.87 (0.74, 4.77)0.19
GGCC CC2 (20.00)8 (80.00)0.51 (0.09, 2.87)0.45
GCCTTT10 (27.78)26 (72.22)0.93 (0.36, 2.44)0.89
GCCTTC22 (55.00)18 (45.00)2.96 (1.21, 7.22)0.02c
GCCTCC2 (25.00)6 (75.00)0.79 (0.14, 4.57)0.79
CCTTTT4 (80.00)1 (20.00)9.71 (0.97, 96.94)0.05
CCTTTC3 (30.00)7 (70.00)0.98 (0.21, 4.63)0.98
Others2 (50.0)2 (50.0)--
Table 15 Single nucleotide polymorphism-smoking, single nucleotide polymorphism-hypertension and SNP-thyroid function interaction models in patients with heart rate variability ≥ 15% evaluated with the generalized multifactor dimensionality reduction approach
Best model
Training balanced accuracy
Testing balanced accuracy
CVC
P value
SNP-smoking interaction1
Smoking0.51910.517110/100.349
rs820196-smoking0.61480.595410/100.022a
rs820196-rs1713449-smoking 0.65100.57649/100.065
SNP-hypertension interaction2
Hypertension0.51560.356410/100.995
rs820196-hypertension0.58850.592010/100.043b
rs820196-rs1713449-hypertension0.64340.53439/100.219
SNP-thyroid function interaction3
Thyroid function0.51260.511310/100.381
rs820196-thyroid function0.58880.581410/100.065
rs820196-rs1713449-thyroid function0.64110.57069/100.075
Table 16 Analysis of interaction between rs820196 genotype and smoking and hypertension in patients with heart rate variability ≥ 15% and < 15%
Environment
rs820196 genotype
HRV ≥ 15% (n = 72)
HRV < 15% (n = 120)
OR (95%CI)
P value
Smoking
NoTT22 (28.95)54 (71.05)1.00 (Reference)-
YesTT5 (45.45)6 (54.55)2.12 (0.57, 7.95)0.26
NoTC33 (50.00)33 (50.00)2.53 (1.26, 5.08)0.01a
YesTC7 (36.84)12 (63.16)1.43 (0.48, 4.22)0.52
NoCC3 (17.65)14 (82.35)0.48 (0.12, 1.89)0.30
YesCC2 (66.67)1 (33.33)4.68 (0.39, 56.33)0.22
Hypertension
NoTT18 (32.73)37 (67.27)1.00 (Reference)-
YesTT9 (28.13)23 (71.88)0.77 (0.28, 2.11)0.62
NoTC25 (46.30)29 (53.70)1.75 (0.80, 3.82)0.16
YesTC15 (48.39)16 (51.61)1.90 (0.75, 4.78)0.18
NoCC3 (23.08)10 (76.92)0.58 (0.14, 2.42)0.45
YesCC2 (28.57)5 (71.43)0.72 (0.12, 4.26)0.72