Table 1 Comparison of the basic demographics and laboratory parameters in the training and test sub-datasets of patients with gastrointestinal perforation
|  | Subjects (n = 367) | Training dataset (n = 256) | Test dataset (n = 111) | P-value |
|---|---|---|---|---|
Perforation site(%) | Â | Â | Â | 0.937 |
Upper-GIP | 254(69.21) | 178(69.53) | 76(68.47) | Â |
Lower-GIP | 113(30.79) | 78(30.47) | 35(31.53) | Â |
Gender n(%) | Â | Â | Â | 0.491 |
Male | 294(80.11) | 208(81.25) | 86(77.48) | Â |
Female | 73(19.89) | 48(18.75) | 25(22.52) | Â |
Age (year) | 56.00[40.00,70.00] | 56.00[40.00,69.25] | 56.00[39.50,71.00] | 0.971 |
Laboratory parameters | Â | Â | Â | Â |
TBIL(μmol/L) | 18.60[13.75,4.70] | 18.60[13.75,4.63] | 17.60[13.80,24.85] | 0.645 |
ALB(g/L) | 38.40[33.30, 2.30] | 38.70[33.95,42.63] | 37.70[31.50,1.60] | 0.201 |
DDI(mg/L) | 1.66[0.85,3.51] | 1.66[0.88,3.26] | 1.65[0.83,3.90] | 0.546 |
FIB(g/L) | 3.88[3.15,5.14] | 3.84[3.15,5.26] | 4.01[3.15,4.97] | 0.989 |
Neu(10^9/L) | 11.03[7.23,14.73] | 10.67[6.92,14.50] | 11.75[8.56,15.26] | 0.081 |
Lym(10^9/L) | 0.80[0.57,1.21] | 0.78[0.57,1.20] | 0.83[0.59,1.26] | 0.337 |
MC(10^9/L) | 0.61[0.40,0.87] | 0.59[0.39, 0.86] | 0.67[0.42,0.96] | 0.104 |
MPV(fL) | 9.90[9.10,10.80] | 9.90[9.10,10.70] | 9.80[9.20,10.95] | 0.571 |
Hb(g/L) | 140.00 [124.50,150.00] | 142.50 [127.75,151.00] | 136.00 [120.50, 149.00] | 0.032 |
Pain duration(%) | Â | Â | Â | 0.508 |
Yes | 288(78.47) | 198(77.34) | 90(81.08) | Â |
No | 79(21.53) | 58(22.66) | 21(18.92) | Â |
Tenderness(%) | Â | Â | Â | 0.778 |
None | 9(2.45) | 6(2.34) | 3(2.70) | Â |
complete abdomen | 240(65.40) | 163(63.67) | 77(69.37) | Â |
upper abdomen | 71(19.35) | 54(21.09) | 17(15.32) | Â |
lower abdomen | 30(8.17) | 21(8.20) | 9(8.11) | Â |
Others | 17(4.63) | 12(4.69) | 5(4.50) | Â |
Rebound tenderness (%) | Â | Â | Â | 0.477 |
None | 60(16.35) | 38(14.84) | 22(19.82) | Â |
complete abdomen | 186(50.68) | 129(50.39) | 57(51.35) | Â |
upper abdomen | 60(16.35) | 46(17.97) | 14(12.61) | Â |
lower abdomen | 28(7.63) | 18(7.03) | 10(9.01) | Â |
Others | 33(8.99) | 25(9.77) | 8(7.21) | Â |
Bowel sounds(%) | Â | Â | Â | 0.397 |
Absent | 13(3.54) | 10(3.91) | 3(2.70) | Â |
Hypoactive | 266(72.48) | 186(72.66) | 80(72.07) | Â |
Normal | 83(22.62) | 55(21.48) | 28(25.23) | Â |
Hyperactive | 5(1.36) | 5(1.95) | 0(0.00) | Â |
Tension of abdominal muscle (%) | Â | Â | Â | 0.785 |
Soft | 59(16.08) | 40(15.62) | 19(17.12) | Â |
slightly tense | 126(34.33) | 86(33.59) | 40(36.04) | Â |
Tense | 182(49.59) | 130(50.78) | 52(46.85) | Â |
Local seroperitoneum(%) | Â | Â | Â | 0.092 |
Yes | 198(53.95) | 146(57.03) | 52(46.85) | Â |
No | 169(46.05) | 110(42.97) | 59(53.15) | Â |
FA(%) | Â | Â | Â | 0.137 |
no/LFA | 48(13.08) | 30(11.72) | 18(16.21) | Â |
UFA | 207(56.40) | 143(55.86) | 64(57.66) | Â |
UFA + LFA | 112(30.52) | 83(32.42) | 29(26.13) |  |
Edema of bowel wall (%) | Â | Â | Â | 0.504 |
Yes | 187(50.95) | 127(49.61) | 60(54.05) | Â |
No | 180(49.05) | 129(50.39) | 51(45.95) | Â |