Opisna statistika

1 Podatki

Opisna statistika je izvedena na celotnih podatkih.

Ponavadi je v člankih tako, da se opisno statistiko izvede na celotni zbirki podatkov in ne samo na učnem delu zbirke.

2 Demographics

Non-normal (p<0.05): ['Age', 'BMI']
Missing Overall 0 1 P-Value Test
n 5319 5133 186
Age, median [Q1,Q3] 0 69.0 [61.0,75.0] 69.0 [61.0,75.0] 70.0 [65.0,76.0] 0.021 Mann-Whitney U
Gender, n (%) 0 0 4281 (80.5) 4135 (80.6) 146 (78.5) 0.546 Chi-squared
1 1038 (19.5) 998 (19.4) 40 (21.5)
BMI, median [Q1,Q3] 0 27.7 [25.1,30.9] 27.7 [25.1,30.8] 30.2 [26.9,33.8] <0.001 Mann-Whitney U

3 Preoperative

Non-normal (p<0.05): ['EjectionFractionEF', 'CockcraftGaultIndexPreop', 'EUROscore', 'LeukocytesPreoperatively', 'HbPreoperativelyGDl', 'PlateletsPreoperatively']
Missing Overall 0 1 P-Value Test
n 5319 5133 186
HospitalizationBeforeSurgeryMo, n (%) 0 0 2015 (37.9) 1961 (38.2) 54 (29.0) 0.014 Chi-squared
1 3304 (62.1) 3172 (61.8) 132 (71.0)
CardiogenicSchockYN, n (%) 0.0 1 4798 (90.2) 4643 (90.5) 155 (83.3) 0.002 Chi-squared
1.0 520 (9.8) 489 (9.5) 31 (16.7)
FormerSmoker, n (%) 0.0 15 3472 (65.5) 3349 (65.4) 123 (66.1) 0.907 Chi-squared
1.0 1832 (34.5) 1769 (34.6) 63 (33.9)
CurrentSmoker, n (%) 0.0 15 4095 (77.2) 3950 (77.2) 145 (78.0) 0.873 Chi-squared
1.0 1209 (22.8) 1168 (22.8) 41 (22.0)
Diabetes, n (%) 0.0 30 3409 (64.5) 3320 (65.0) 89 (48.1) <0.001 Chi-squared
1.0 1880 (35.5) 1784 (35.0) 96 (51.9)
DiabetesPerOsTherapie, n (%) 0.0 30 4071 (77.0) 3941 (77.2) 130 (70.3) 0.034 Chi-squared
1.0 1218 (23.0) 1163 (22.8) 55 (29.7)
DiabetesOnInsuline, n (%) 0.0 30 4655 (88.0) 4518 (88.5) 137 (74.1) <0.001 Chi-squared
1.0 634 (12.0) 586 (11.5) 48 (25.9)
Hypertension, n (%) 0.0 5 276 (5.2) 269 (5.2) 7 (3.8) 0.477 Chi-squared
1.0 5038 (94.8) 4860 (94.8) 178 (96.2)
Hyperlipidemia, n (%) 0.0 9 516 (9.7) 499 (9.7) 17 (9.1) 0.885 Chi-squared
1.0 4794 (90.3) 4625 (90.3) 169 (90.9)
PerifernoArterijskoObolenje, n (%) 0.0 9 4578 (86.2) 4437 (86.6) 141 (75.8) <0.001 Chi-squared
1.0 732 (13.8) 687 (13.4) 45 (24.2)
ExtracardiacArteriopathy, n (%) 0.0 9 3983 (75.0) 3860 (75.3) 123 (66.1) 0.006 Chi-squared
1.0 1327 (25.0) 1264 (24.7) 63 (33.9)
PsychoSyndrome, n (%) 0.0 9 4886 (92.0) 4743 (92.6) 143 (76.9) <0.001 Chi-squared
1.0 424 (8.0) 381 (7.4) 43 (23.1)
TherapyRelevantPsychoSyndrome, n (%) 0.0 9 4943 (93.1) 4797 (93.6) 146 (78.5) <0.001 Chi-squared
1.0 367 (6.9) 327 (6.4) 40 (21.5)
NYHA3rdOr4thCategory, n (%) 0.0 1 2491 (46.8) 2405 (46.9) 86 (46.2) 0.926 Chi-squared
1.0 2827 (53.2) 2727 (53.1) 100 (53.8)
UnstableAnginaPectoris, n (%) 0.0 1 4765 (89.6) 4599 (89.6) 166 (89.2) 0.969 Chi-squared
1.0 553 (10.4) 533 (10.4) 20 (10.8)
StrokeBeforeOp, n (%) 0.0 6 4882 (91.9) 4712 (91.9) 170 (91.4) 0.910 Chi-squared
1.0 431 (8.1) 415 (8.1) 16 (8.6)
PreoperativeInfectionYN, n (%) 0.0 2 5215 (98.1) 5037 (98.1) 178 (96.2) 0.090 Fisher's exact
1.0 102 (1.9) 95 (1.9) 7 (3.8)
KongestiveHeartFailure, n (%) 0.0 5 3749 (70.5) 3637 (70.9) 112 (60.2) 0.002 Chi-squared
1.0 1565 (29.5) 1491 (29.1) 74 (39.8)
EjectionFractionEF, median [Q1,Q3] 5 60.0 [50.0,64.0] 60.0 [50.0,64.0] 55.0 [45.0,61.0] 0.003 Mann-Whitney U
EF50, n (%) 0.0 5 4136 (77.8) 4006 (78.1) 130 (69.9) 0.010 Chi-squared
1.0 1178 (22.2) 1122 (21.9) 56 (30.1)
AtrialFibrillationYN, n (%) 0.0 4 4910 (92.4) 4747 (92.6) 163 (87.6) 0.019 Chi-squared
1.0 405 (7.6) 382 (7.4) 23 (12.4)
PCI, n (%) 0.0 1 4066 (76.5) 3927 (76.5) 139 (74.7) 0.633 Chi-squared
1.0 1252 (23.5) 1205 (23.5) 47 (25.3)
PreviousOperationCABG, n (%) 0 0 5267 (99.0) 5081 (99.0) 186 (100.0) 0.263 Fisher's exact
1 52 (1.0) 52 (1.0) 0 (0.0)
PreviousCardiacOperation, n (%) 0 0 5259 (98.9) 5073 (98.8) 186 (100.0) 0.274 Fisher's exact
1 60 (1.1) 60 (1.2) 0 (0.0)
LiverDiseaseYN, n (%) 0.0 17 5227 (98.6) 5042 (98.5) 185 (100.0) 0.114 Fisher's exact
1.0 75 (1.4) 75 (1.5) 0 (0.0)
ChronicLungDiseaseYN, n (%) 0.0 3 4668 (87.8) 4514 (88.0) 154 (82.8) 0.044 Chi-squared
1.0 648 (12.2) 616 (12.0) 32 (17.2)
VentilationBeforeOperation, n (%) 0.0 2 5266 (99.0) 5082 (99.0) 184 (98.9) 0.699 Fisher's exact
1.0 51 (1.0) 49 (1.0) 2 (1.1)
CockcraftGaultIndexPreop, median [Q1,Q3] 2 76.7 [60.0,97.3] 76.9 [60.2,97.5] 73.1 [55.8,91.6] 0.022 Mann-Whitney U
CC50, n (%) 0.0 2 4633 (87.1) 4478 (87.3) 155 (83.3) 0.143 Chi-squared
1.0 684 (12.9) 653 (12.7) 31 (16.7)
CC5085, n (%) 0.0 2 2749 (51.7) 2659 (51.8) 90 (48.4) 0.397 Chi-squared
1.0 2568 (48.3) 2472 (48.2) 96 (51.6)
ChronicDialysis, n (%) 0.0 29 5175 (97.8) 4998 (97.9) 177 (96.7) 0.294 Fisher's exact
1.0 115 (2.2) 109 (2.1) 6 (3.3)
RenalReplacementTherapy, n (%) 0.0 2 5139 (96.7) 4961 (96.7) 178 (95.7) 0.597 Chi-squared
1.0 178 (3.3) 170 (3.3) 8 (4.3)
ACEInhibitors, n (%) 0.0 11 2352 (44.3) 2286 (44.6) 66 (35.5) 0.017 Chi-squared
1.0 2956 (55.7) 2836 (55.4) 120 (64.5)
ATIIAntagonists, n (%) 0.0 13 4419 (83.3) 4259 (83.2) 160 (86.0) 0.358 Chi-squared
1.0 887 (16.7) 861 (16.8) 26 (14.0)
Betablocker, n (%) 0.0 11 1575 (29.7) 1523 (29.7) 52 (28.0) 0.660 Chi-squared
1.0 3733 (70.3) 3599 (70.3) 134 (72.0)
CaAntagonists, n (%) 0.0 11 4145 (78.1) 4003 (78.2) 142 (76.3) 0.620 Chi-squared
1.0 1163 (21.9) 1119 (21.8) 44 (23.7)
EUROscore, median [Q1,Q3] 1 3.3 [1.8,6.3] 3.2 [1.8,6.2] 4.5 [2.5,8.1] <0.001 Mann-Whitney U
EUROscore10, n (%) 0.0 1 4616 (86.8) 4458 (86.9) 158 (84.9) 0.516 Chi-squared
1.0 702 (13.2) 674 (13.1) 28 (15.1)
IABPPreoperatively, n (%) 0.0 3 5161 (97.1) 4976 (97.0) 185 (99.5) 0.082 Chi-squared
1.0 155 (2.9) 154 (3.0) 1 (0.5)
LMMainStenosisOfLeftMainCorona, n (%) 0.0 1 3402 (64.0) 3280 (63.9) 122 (65.6) 0.696 Chi-squared
1.0 1916 (36.0) 1852 (36.1) 64 (34.4)
AorticCalcificatio, n (%) 0.0 53 3914 (74.3) 3788 (74.6) 126 (68.1) 0.059 Chi-squared
1.0 1352 (25.7) 1293 (25.4) 59 (31.9)
RecentMIWithin90Days, n (%) 0.0 2 3267 (61.4) 3162 (61.6) 105 (56.5) 0.178 Chi-squared
1.0 2050 (38.6) 1969 (38.4) 81 (43.5)
LeukocytesPreoperatively, median [Q1,Q3] 18 7.3 [6.1,8.7] 7.2 [6.1,8.7] 7.8 [6.5,9.0] 0.003 Mann-Whitney U
HbPreoperativelyGDl, median [Q1,Q3] 18 14.0 [12.9,14.9] 14.0 [12.9,14.9] 13.7 [12.2,14.9] 0.017 Mann-Whitney U
HbPreop12GDl, n (%) 0.0 18 4596 (86.7) 4452 (87.0) 144 (78.3) <0.001 Chi-squared
1.0 705 (13.3) 665 (13.0) 40 (21.7)
PlateletsPreoperatively, median [Q1,Q3] 22 223.0 [188.0,265.0] 223.0 [188.0,265.0] 232.0 [191.5,274.0] 0.217 Mann-Whitney U
PoorGlycemicControlPrediabetes, n (%) 0.0 50 4628 (87.8) 4478 (88.0) 150 (82.4) 0.031 Chi-squared
1.0 641 (12.2) 609 (12.0) 32 (17.6)
GFRLaurisProdop60NotNormal, n (%) 0.0 28 4027 (76.1) 3912 (76.6) 115 (62.8) <0.001 Chi-squared
1.0 1264 (23.9) 1196 (23.4) 68 (37.2)
CRPLaurisPreop3NotNormal, n (%) 0.0 97 4862 (93.1) 4700 (93.2) 162 (91.0) 0.331 Chi-squared
1.0 360 (6.9) 344 (6.8) 16 (9.0)

4 Intraoperative

Non-normal (p<0.05): ['DurationOfTheOperation', 'NumberOfGrafts', 'AorticClampingTime', 'BypassOperationTime', 'MinimumTemperature']
Missing Overall 0 1 P-Value Test
n 5319 5133 186
DurationOfTheOperation, median [Q1,Q3] 2 177.0 [152.0,205.0] 177.0 [151.0,205.0] 182.5 [161.2,215.8] 0.007 Mann-Whitney U
Urgent, n (%) 0.0 2 3319 (62.4) 3197 (62.3) 122 (65.6) 0.406 Chi-squared
1.0 1998 (37.6) 1934 (37.7) 64 (34.4)
Emergency, n (%) 0.0 1 5084 (95.6) 4906 (95.6) 178 (95.7) 1.000 Chi-squared
1.0 234 (4.4) 226 (4.4) 8 (4.3)
NumberOfGrafts, median [Q1,Q3] 0 3.0 [2.0,3.0] 3.0 [2.0,3.0] 3.0 [2.0,3.0] 0.069 Mann-Whitney U
TotalRevascularization, n (%) 0.0 56 713 (13.5) 685 (13.5) 28 (15.1) 0.594 Chi-squared
1.0 4550 (86.5) 4393 (86.5) 157 (84.9)
NewOperationOnPump, n (%) 0.0 26 5268 (99.5) 5084 (99.5) 184 (98.9) 0.219 Fisher's exact
1.0 25 (0.5) 23 (0.5) 2 (1.1)
AorticClampingTime, median [Q1,Q3] 0 43.0 [34.0,53.0] 43.0 [34.0,53.0] 45.5 [36.0,55.0] 0.050 Mann-Whitney U
BypassOperationTime, median [Q1,Q3] 1 75.0 [60.0,92.0] 75.0 [59.0,92.0] 78.0 [63.2,90.8] 0.047 Mann-Whitney U
MinimumTemperature, median [Q1,Q3] 0 34.7 [34.1,35.0] 34.7 [34.1,35.0] 34.8 [34.3,35.2] 0.040 Mann-Whitney U
CPBTime100Min, n (%) 0 0 4485 (84.3) 4332 (84.4) 153 (82.3) 0.493 Chi-squared
1 834 (15.7) 801 (15.6) 33 (17.7)
ITA, n (%) 0.0 1 384 (7.2) 360 (7.0) 24 (12.9) 0.004 Chi-squared
1.0 4934 (92.8) 4772 (93.0) 162 (87.1)
BIMA, n (%) 0.0 1 5045 (94.9) 4880 (95.1) 165 (88.7) <0.001 Chi-squared
1.0 273 (5.1) 252 (4.9) 21 (11.3)
AtrialAppendageClosure, n (%) 0.0 23 5155 (97.3) 4978 (97.4) 177 (95.7) 0.158 Fisher's exact
1.0 141 (2.7) 133 (2.6) 8 (4.3)
BoneWaxFolG, n (%) 0.0 1 4862 (91.4) 4692 (91.4) 170 (91.4) 1.000 Chi-squared
1.0 456 (8.6) 440 (8.6) 16 (8.6)
BoneWaxOsteneG, n (%) 0 0 4451 (83.7) 4289 (83.6) 162 (87.1) 0.237 Chi-squared
1 868 (16.3) 844 (16.4) 24 (12.9)
VancomycinG, n (%) 0 0 5143 (96.7) 4963 (96.7) 180 (96.8) 1.000 Chi-squared
1 176 (3.3) 170 (3.3) 6 (3.2)
TiesselFibrinGlueMl, n (%) 0 0 5125 (96.4) 4953 (96.5) 172 (92.5) 0.007 Chi-squared
1 194 (3.6) 180 (3.5) 14 (7.5)

5 Postoperative

Non-normal (p<0.05): ['PericardialEffusion', 'TotalDrainage', 'Drainage24h', 'Drainage24hMlKg', 'NumberOfPlasmaUnits', 'PlateletUnitNumber', 'NumberOfReintubations', 'LeukocytesFirstPostoperativeDa', 'LeukocytesSecondPostoperativeD', 'HbFirstPostoperativeDayGDl', 'HbSecondPostoperativeDayGDl', 'PlateletsFirstPostoperativeDay', 'PlateletsSecondPostoperativeDa', 'INRFirstPostoperativeDay', 'INRSecondPostoperativeDay']
Missing Overall 0 1 P-Value Test
n 5319 5133 186
PericardialEffusion, median [Q1,Q3] 0 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.075 Mann-Whitney U
PericardDrainage, n (%) 0.0 43 3759 (71.2) 3641 (71.5) 118 (63.4) 0.021 Chi-squared
1.0 1517 (28.8) 1449 (28.5) 68 (36.6)
RethoracotomyYN, n (%) 0.0 39 5071 (96.0) 4912 (96.4) 159 (86.4) <0.001 Chi-squared
1.0 209 (4.0) 184 (3.6) 25 (13.6)
LowOutputYN, n (%) 0.0 21 5105 (96.4) 4929 (96.4) 176 (94.6) 0.278 Chi-squared
1.0 193 (3.6) 183 (3.6) 10 (5.4)
InfarctionPerioperativelyYN, n (%) 0.0 15 5248 (98.9) 5065 (98.9) 183 (99.5) 1.000 Fisher's exact
1.0 56 (1.1) 55 (1.1) 1 (0.5)
CoagulationDisorder, n (%) 0.0 20 5166 (97.5) 4990 (97.6) 176 (94.6) 0.026 Fisher's exact
1.0 133 (2.5) 123 (2.4) 10 (5.4)
Rebleeding, n (%) 0.0 22 5099 (96.3) 4924 (96.3) 175 (94.6) 0.308 Chi-squared
1.0 198 (3.7) 188 (3.7) 10 (5.4)
AtrialFibrillationPostopNewOns, n (%) 0.0 1 4716 (88.7) 4555 (88.8) 161 (86.6) 0.417 Chi-squared
1.0 602 (11.3) 577 (11.2) 25 (13.4)
Cardioversion, n (%) 0.0 34 5082 (96.2) 4914 (96.4) 168 (90.3) <0.001 Chi-squared
1.0 203 (3.8) 185 (3.6) 18 (9.7)
StrokeJN, n (%) 0.0 24 5255 (99.2) 5070 (99.2) 185 (99.5) 1.000 Fisher's exact
1.0 40 (0.8) 39 (0.8) 1 (0.5)
SumOtherInfectYN, n (%) 0 0 4619 (86.8) 4473 (87.1) 146 (78.5) <0.001 Chi-squared
1 700 (13.2) 660 (12.9) 40 (21.5)
AcuteKidneyFailure, n (%) 0.0 32 4677 (88.5) 4549 (89.2) 128 (69.2) <0.001 Chi-squared
1.0 610 (11.5) 553 (10.8) 57 (30.8)
SaEtAlCreatinine226MgDdlOrPost, n (%) 0.0 21 5014 (94.6) 4855 (95.0) 159 (85.5) <0.001 Chi-squared
1.0 284 (5.4) 257 (5.0) 27 (14.5)
TotalDrainage, median [Q1,Q3] 0 500.0 [350.0,750.0] 500.0 [350.0,750.0] 600.0 [400.0,830.0] 0.002 Mann-Whitney U
Drainage24h, median [Q1,Q3] 0 0.0 [0.0,450.0] 0.0 [0.0,450.0] 0.0 [0.0,442.5] 0.755 Mann-Whitney U
Drainage24hMlKg, median [Q1,Q3] 0 0.0 [0.0,5.2] 0.0 [0.0,5.2] 0.0 [0.0,5.3] 0.859 Mann-Whitney U
NumberOfPlasmaUnits, median [Q1,Q3] 0 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.001 Mann-Whitney U
PlateletUnitNumber, median [Q1,Q3] 0 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.013 Mann-Whitney U
Transfusion, n (%) 0 0 3219 (60.5) 3153 (61.4) 66 (35.5) <0.001 Chi-squared
1 2100 (39.5) 1980 (38.6) 120 (64.5)
MoreThan2UnitsOfErythrocytes, n (%) 0 0 4594 (86.4) 4465 (87.0) 129 (69.4) <0.001 Chi-squared
1 725 (13.6) 668 (13.0) 57 (30.6)
RespiratoryFailureYN, n (%) 0.0 24 4738 (89.5) 4594 (89.9) 144 (77.8) <0.001 Chi-squared
1.0 557 (10.5) 516 (10.1) 41 (22.2)
ProlongedMechanicalVentilation, n (%) 0.0 76 4982 (95.0) 4829 (95.4) 153 (84.1) <0.001 Chi-squared
1.0 261 (5.0) 232 (4.6) 29 (15.9)
Reintubation, n (%) 0.0 54 5099 (96.8) 4934 (97.1) 165 (88.7) <0.001 Chi-squared
1.0 166 (3.2) 145 (2.9) 21 (11.3)
NumberOfReintubations, median [Q1,Q3] 0 0.0 [0.0,0.0] 0.0 [0.0,0.0] 0.0 [0.0,0.0] <0.001 Mann-Whitney U
Tracheotomy, n (%) 0.0 110 5021 (96.4) 4861 (96.8) 160 (86.5) <0.001 Chi-squared
1.0 188 (3.6) 163 (3.2) 25 (13.5)
LeukocytesFirstPostoperativeDa, median [Q1,Q3] 20 10.0 [8.1,12.3] 9.9 [8.1,12.2] 10.2 [8.4,13.3] 0.075 Mann-Whitney U
LeukocytesSecondPostoperativeD, median [Q1,Q3] 126 9.8 [8.1,11.8] 9.8 [8.1,11.8] 10.7 [8.6,12.9] <0.001 Mann-Whitney U
HbFirstPostoperativeDayGDl, median [Q1,Q3] 20 10.4 [9.5,11.2] 10.4 [9.5,11.2] 10.2 [9.6,11.0] 0.329 Mann-Whitney U
HbSecondPostoperativeDayGDl, median [Q1,Q3] 126 9.6 [8.8,10.5] 9.6 [8.8,10.5] 9.5 [8.9,10.4] 0.438 Mann-Whitney U
PlateletsFirstPostoperativeDay, median [Q1,Q3] 21 175.0 [144.0,212.0] 175.0 [144.0,212.0] 176.0 [145.8,219.8] 0.426 Mann-Whitney U
PlateletsSecondPostoperativeDa, median [Q1,Q3] 131 155.0 [127.0,189.0] 155.0 [127.0,189.0] 157.0 [127.0,191.0] 0.560 Mann-Whitney U
INRFirstPostoperativeDay, median [Q1,Q3] 26 1.2 [1.2,1.3] 1.2 [1.2,1.3] 1.2 [1.2,1.3] 0.415 Mann-Whitney U
INRSecondPostoperativeDay, median [Q1,Q3] 158 1.2 [1.1,1.3] 1.2 [1.1,1.3] 1.2 [1.2,1.3] 0.029 Mann-Whitney U
GFRLaurisPostop1stDay60NotNorm, n (%) 0.0 22 4015 (75.8) 3899 (76.2) 116 (63.4) <0.001 Chi-squared
1.0 1282 (24.2) 1215 (23.8) 67 (36.6)
GFRLaurisPostop2ndDay60NotNorm, n (%) 0.0 126 4000 (77.0) 3889 (77.5) 111 (62.4) <0.001 Chi-squared
1.0 1193 (23.0) 1126 (22.5) 67 (37.6)
CRPLaurisPostop1stDay3NotNorma, n (%) 0.0 121 465 (8.9) 449 (8.9) 16 (8.9) 1.000 Chi-squared
1.0 4733 (91.1) 4569 (91.1) 164 (91.1)
CRPLaurisPostop2ndDay3NotNorma, n (%) 0.0 157 15 (0.3) 14 (0.3) 1 (0.6) 0.411 Fisher's exact
1.0 5147 (99.7) 4969 (99.7) 178 (99.4)
PneumothoraxJN, n (%) 0.0 35 5094 (96.4) 4911 (96.3) 183 (98.4) 0.201 Chi-squared
1.0 190 (3.6) 187 (3.7) 3 (1.6)
PleuralEffusion, n (%) 0.0 29 4569 (86.4) 4441 (87.0) 128 (68.8) <0.001 Chi-squared
1.0 721 (13.6) 663 (13.0) 58 (31.2)