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. 2025 Mar 6;15:7887. doi: 10.1038/s41598-025-90947-8

Table 2.

Univariate and multivariate regression analysis of various inflammatory indicators and COPD.

Inflammation index Crude model Minimally adjusted Fully adjusted
SIRI
 Continuous 1.516 (1.380, 1.665) < 0.001 1.259 (1.131, 1.401) < 0.001

1.350 (1.220, 1.493)

< 0.001

 Q1 Ref Ref Ref
 Q2 1.279 (0.994, 1.647) 0.062 1.143 (0.873, 1.497) 0.329 1.180 (0.908, 1.532) 0.216
 Q3 1.534 (1.201, 1.960) < 0.001 1.209 (0.926, 1.579) 0.162 1.344 (1.042, 1.732) 0.023
 Q4 2.352 (1.865, 2.965) < 0.001 1.494 (1.154, 1.935) 0.002 1.836 (1.438, 2.343) < 0.001
SII
 Continuous 1.001 (1.000, 1.001) < 0.001 1.000 (1.000, 1.001) 0.008 1.000 (1.000, 1.001) 0.003
 Q1 Ref Ref Ref
 Q2 1.094 (0.862, 1.388) 0.461 1.118 (0.865, 1.444) 0.394 1.169 (0.912, 1.499) 0.216
 Q3 1.261 (0.999, 1.592) 0.051 1.254 (0.976, 1.611) 0.077 1.288 (1.010, 1.642) 0.042
 Q4 1.571 (1.255, 1.968) < 0.001 1.436 (1.123, 1.835) 0.004 1.486 (1.173, 1.883) 0.001
NLR
 Continuous 1.212 (1.132, 1.296) < 0.001 1.057 (0.985, 1.134) 0.121 1.130 (1.052, 1.213) < 0.001
 Q1 Ref Ref Ref
 Q2 1.253 (0.978, 1.605) 0.075 1.134 (0.870, 1.477) 0.353 1.313 (1.016, 1.698) 0.038
 Q3 1.576 (1.241, 2.001) < 0.001 1.368 (1.057, 1.771) 0.017 1.611 (1.256, 2.067) < 0.001
 Q4 1.988 (1.577, 2.506) < 0.001 1.350 (1.047, 1.741) 0.021 1.745 (1.370, 2.222) < 0.001
LLR
 Continuous 1.003 (1.006, 1.007) 0.017 0.997 (0.994,1.000) 0.071 1.005 (1.003, 1.008) < 0.001
 Q1 Ref Ref Ref
 Q2 0.845 (0.670, 1.065) 0.153 0.862 (0.642, 1.061) 0.135 0.915 (0.717, 1.167) 0.473
 Q3 1.008 (0.805, 1.261) 0.948 0.849 (0.665, 1.082) 0.186 1.202 (0.948, 1.524) 0.129
 Q4 1.110 (0.891, 1.383) 0.353 0.735 (0.577, 0.935) 0.012 1.342 (1.060, 1.699) 0.014
LMR
 Continuous 1.098 (1.051, 1.147) < 0.001 1.082 (1.030, 1.138) 0.002 1.047 (0.996, 1.100) 0.071
 Q1 Ref Ref Ref
 Q2 0.649 (0.522, 0.806) < 0.001 0.897 (0.709, 1.134) 0.363 0.714 (0.568, 0.896) 0.004
 Q3 0.531 (0.426, 0.661) < 0.001 0.908 (0.713, 1.156) 0.433 0.6377 (0.506, 0.802) < 0.001
 Q4 0.451 (0.361, 0.561) < 0.001 0.904 (0.705, 1.160) 0.428 0.525 (0.417, 0.663) < 0.001

Significant values are in bold.

Crude model: No covariates were adjusted.

Minimally adjusted: Adjusted for age, sex, race, and education level.

Fully adjusted: Adjusted for age, sex, race, education level, PIR, BMI, hypertension, diabetes, coronary heart disease, heart attack, angina, stroke, smoke status, and drinking status.