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. 2026 Mar 17;26:192. doi: 10.1186/s12890-026-04240-z

Table 3.

Correlation analysis between pulmonary function tests. clinical scores. and thoracic ct measurements in female participants

Female RV
(cm3)		 LV
(cm3)		 LLV (cm3) RLV (cm3) Total Lung VCS (mm) VCI TRANSVERS (mm) VCIAP (mm) FEV1 FEV1LT FVC FVCLT FEV1FVC FEF2575 MMRC CAT
RV (cm3) r 1 ,824** -,066 ,085 -,377 ,421** ,240 ,127 -,101 -,111 -,136 -,105 -,116 -,071 ,441* ,307
p ,000 ,650 ,559 ,092 ,002 ,093 ,378 ,664 ,631 ,558 ,651 ,615 ,759 ,045 ,176
LV (cm3) r ,824** 1 -,089 ,078 -,308 ,338* ,165 ,023 -,049 -,108 -,057 -,113 -,031 -,055 ,369 ,206
p ,000 ,539 ,589 ,174 ,016 ,253 ,876 ,832 ,641 ,806 ,625 ,893 ,814 ,099 ,369
LLV (cm3) r -,066 -,089 1 ,947** ,966** -,337* ,020 ,212 -,137 -,144 -,179 -,203 -,026 -,118 -,210 ,012
p ,650 ,539 ,000 ,000 ,017 ,891 ,140 ,555 ,533 ,437 ,377 ,912 ,611 ,361 ,957
RLV (cm3) r ,085 ,078 ,947** 1 ,971** -,195 ,081 ,201 -,146 -,162 -,160 -,172 -,159 -,196 -,118 ,198
p ,559 ,589 ,000 ,000 ,176 ,578 ,161 ,528 ,482 ,490 ,456 ,491 ,394 ,612 ,389
Total Lung r -,377 -,308 ,966** ,971** 1 -,528* -,289 -,110 -,146 -,159 -,175 -,193 -,098 -,164 -,167 ,113
p ,092 ,174 ,000 ,000 ,014 ,204 ,634 ,528 ,492 ,449 ,402 ,672 ,478 ,469 ,627
VCS (mm) r ,421** ,338* -,337* -,195 -,528* 1 ,388** -,200 ,325 ,228 ,338 ,185 ,180 ,232 ,085 ,103
p ,002 ,016 ,017 ,176 ,014 ,005 ,163 ,151 ,320 ,134 ,422 ,434 ,311 ,715 ,656
VCI TRANSVERS (MM)mm r ,240 ,165 ,020 ,081 -,289 ,388** 1 ,507** ,381 ,147 ,309 ,007 ,279 ,238 -,166 -,370
p ,093 ,253 ,891 ,578 ,204 ,005 ,000 ,089 ,524 ,174 ,977 ,221 ,299 ,471 ,098
VCIAP (mm) r ,127 ,023 ,212 ,201 -,110 -,200 ,507** 1 ,017 -,081 -,037 -,079 ,009 -,103 ,184 -,053
p ,378 ,876 ,140 ,161 ,634 ,163 ,000 ,940 ,727 ,874 ,734 ,970 ,658 ,425 ,818
FEV1 r -,101 -,049 -,137 -,146 -,146 ,325 ,381 ,017 1 ,834** ,925** ,579** ,860** ,886** -,645** -,571**
p ,664 ,832 ,555 ,528 ,528 ,151 ,089 ,940 ,000 ,000 ,006 ,000 ,000 ,002 ,007
FEV1LT r -,111 -,108 -,144 -,162 -,159 ,228 ,147 -,081 ,834** 1 ,863** ,902** ,672** ,791** -,453* -,380
p ,631 ,641 ,533 ,482 ,492 ,320 ,524 ,727 ,000 ,000 ,000 ,001 ,000 ,039 ,090
FVC r -,136 -,057 -,179 -,160 -,175 ,338 ,309 -,037 ,925** ,863** 1 ,732** ,664** ,739** -,583** -,461*
p ,558 ,806 ,437 ,490 ,449 ,134 ,174 ,874 ,000 ,000 ,000 ,001 ,000 ,005 ,035
FVCLT r -,105 -,113 -,203 -,172 -,193 ,185 ,007 -,079 ,579** ,902** ,732** 1 ,340 ,502* -,247 -,121
p ,651 ,625 ,377 ,456 ,402 ,422 ,977 ,734 ,006 ,000 ,000 ,132 ,020 ,281 ,601
FEV1FVC r -,116 -,031 -,026 -,159 -,098 ,180 ,279 ,009 ,860** ,672** ,664** ,340 1 ,902** -,506* -,584**
p ,615 ,893 ,912 ,491 ,672 ,434 ,221 ,970 ,000 ,001 ,001 ,132 ,000 ,019 ,005
FEF2575 r -,071 -,055 -,118 -,196 -,164 ,232 ,238 -,103 ,886** ,791** ,739** ,502* ,902** 1 -,606** -,598**
p ,759 ,814 ,611 ,394 ,478 ,311 ,299 ,658 ,000 ,000 ,000 ,020 ,000 ,004 ,004
MMRC r ,441* ,369 -,210 -,118 -,167 ,085 -,166 ,184 -,645** -,453* -,583** -,247 -,506* -,606** 1 ,667**
p ,045 ,099 ,361 ,612 ,469 ,715 ,471 ,425 ,002 ,039 ,005 ,281 ,019 ,004 ,001
CAT r ,307 ,206 ,012 ,198 ,113 ,103 -,370 -,053 -,571** -,380 -,461* -,121 -,584** -,598** ,667** 1
p ,176 ,369 ,957 ,389 ,627 ,656 ,098 ,818 ,007 ,090 ,035 ,601 ,005 ,004 ,001

RLV Right lung volume, LLV- Left lung volume, RV Right heart ventricular volume, LV Left heart ventricular volume, VCS Vena cava superior, VCI Vena cava inferior, VCIAP the maximal anteroposterior diameter of vena cava inferior, VCITRANSVERS the transvers diameter of vena cava inferior, PA Pulmonary artery, TLC Total lung capacity, FEV1 Forced Expiratory volume in 1 s, FEV1LT Forced expiratory volume in 1 s (liters), FVC Forced vital capacity, FVCLT Forced vital capacity (liters), FEV1/FVC ratio of forced expiratory volume in 1 s to forced vital capacity, FEF25-75 Forced expiratory flow at 25–75% of FVC, CAT Copd assessment test

* Correlation is significant at the 0.05 level (2-tailed),  ** Correlation is significant at the 0.01 level (2-tailed)

*statistically significant p value (p < 0.05))