Table 2 Demographic and clinical characteristics associated with a prolonged LOS as assessed in the training set
Variables | Normal LOS (N = 38,026) | Prolonged LOS (N = 12,359) | P values |
|---|---|---|---|
Age (IQR, year) | 61.00(48.00,71.00) | 68.00(58.00,76.00) | < 0.001 |
Sex (n, %) | < 0.001 | ||
Female | 21,566(56.71) | 5866(47.46) | |
Male | 16,460(43.29) | 6493(52.54) | |
Insurance type (n, %) | < 0.001 | ||
Full self-pay | 3931(10.34) | 866(7.01) | |
UEMI | 9527(25.05) | 2332(18.87) | |
URMI | 22,871(60.15) | 8800(71.20) | |
Other insurance | 1697(4.46) | 361(2.92) | |
ACCI score (n, %) | < 0.001 | ||
0–4 | 16,936(44.54) | 3175(25.69) | |
5–7 | 15,420(40.55) | 5915(47.86) | |
> 7 | 5670(14.91) | 3269(26.45) | |
Hypertension (n, %) | < 0.001 | ||
Yes | 16,736(44.01) | 7662(62.00) | |
No | 21,290(55.99) | 4697(38.00) | |
CHD (n, %) | < 0.001 | ||
Yes | 6768(17.8) | 3604(29.16) | |
No | 31,258(82.2) | 8755(70.84) | |
CI (n, %) | < 0.001 | ||
Yes | 3226(8.48) | 2704(21.88) | |
No | 34,800(91.52) | 9655(78.12) | |
Hyperlipidemia (n, %) | 0.123 | ||
Yes | 5285(13.9) | 1649(13.34) | |
No | 32,741(86.1) | 10,710(86.66) | |
Antihypertensive drug use (n, %) | < 0.001 | ||
Yes | 13,379(35.18) | 8571(69.35) | |
No | 24,647(64.82) | 3788(30.65) | |
Statins use (n, %) | < 0.001 | ||
Yes | 12,485(32.83) | 5797(46.91) | |
No | 25,541(67.17) | 6562(53.09) | |
Antiplatelet and anticoagulant use (n, %) | < 0.001 | ||
Yes | 12,319(32.4) | 7807(63.17) | |
No | 25,707(67.6) | 4552(36.83) | |
PSH (n, %) | < 0.001 | ||
Yes | 17,730(46.63) | 8387(67.86) | |
No | 20,296(53.37) | 3972(32.14) | |
PMH (n, %) | < 0.001 | ||
Yes | 28,342(74.53) | 11,852(95.90) | |
No | 9684(25.47) | 507(4.10) | |
Smoking history (n, %) | < 0.001 | ||
Yes | 9672(25.44) | 5309(42.96) | |
No | 28,354(74.56) | 7050(57.04) | |
Drinking history (n, %) | < 0.001 | ||
Yes | 8047(21.16) | 4665(37.75) | |
No | 29,979(78.84) | 7694(62.25) | |
SBP (IQR, mmHg) | 130.00(120.00,145.00) | 135.00(122.00,150.00) | < 0.001 |
DBP (IQR, mmHg) | 79.00(71.00,86.00) | 78.00(70.00,86.00) | 0.003 |
Pulse (IQR, bpm) | 80.00(75.00,90.00) | 80.00(74.00,91.00) | 0.442 |
AST (IQR, IU/L) | 19.80(16.00,26.00) | 20.00(16.00,28.00) | < 0.001 |
ALT (IQR, IU/L) | 19.00(13.00,29.00) | 19.00(13.00,30.00) | 0.585 |
TGs (IQR, mmol/l) | 1.61(1.13,2.42) | 1.45(1.04,2.12) | < 0.001 |
NLR (IQR) | 2.80(1.93,4.35) | 3.48(2.26,5.94) | < 0.001 |
PLR (IQR) | 117.93(88.79,158.78) | 132.82(96.04,190.11) | < 0.001 |
LMR (IQR) | 3.97(2.73,5.59) | 3.31(2.17,4.86) | < 0.001 |
NPAR (IQR, ml/g) | 16.30(14.01,19.47) | 18.07(15.33,21.53) | < 0.001 |
CREA (IQR, umol/l) | 62.80(50.90,78.50) | 71.00(56.80,93.90) | < 0.001 |
UA (IQR, umol/l) | 324.28(264.45,394.19) | 327.62(259.00,404.57) | 0.132 |
LDL-C (IQR, mmol/l) | 2.48(1.90,3.10) | 2.32(1.75,2.96) | < 0.001 |
HDL-C (IQR, mmol/l) | 1.12(0.93,1.34) | 1.06(0.88,1.29) | < 0.001 |
FG (IQR, mmol/l) | 7.32(5.64,10.27) | 8.09(6.14,11.54) | < 0.001 |
GFR (IQR, ml/min) | 100.90(80.66,123.40) | 89.01(63.55,109.29) | < 0.001 |