Table 2.
Rheological parameters of the sputum using a sputum: additive ratio of 10:1
| Untreated | Water | Bicarbonate | NaCl | ||||
|---|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | p value | Mean (SD) | p value | Mean (SD) | p value | |
| For all samples | |||||||
| G′ (at 1 rad/s) | 67,359 (± 88,421) | 67,175 (± 66,877) | > 0.9999 | 57,423 (± 73,261) | 0.9789 | 126,093 (± 218,382) | 0.9996 |
| G″ (at 1 rad/s) | 16,900 (± 20,838) | 16,808 (± 17,012) | > 0.9999 | 14,590 (± 17,772) | 0.9822 | 32,291 (± 55,925) | > 0.9999 |
| tanδ (at 1 rad/s) | 0.2654 (± 0.0400) | 0.2483 (± 0.0359) | 0.7877 | 0.2700 (± 0.0399) | 0.9936 | 0.3623 (± 0.2026) | 0.1841 |
| G′ (at 10 rad/s) | 85,329 (± 114,754) | 83,220 (± 86,399) | > 0.9999 | 71,183 (± 87,859) | 0.9697 | 82,689 (± 128,089) | 0.9999 |
| G″ (at 10 rad/s) | 20,040 (± 26,749) | 18,140 (± 18,996) | 0.9932 | 16,429 (± 19,110) | 0.9576 | 19,947 (± 29,187) | > 0.9999 |
| tanδ (at 10 rad/s) | 0.2444 (± 0.0497) | 0.2325 (± 0.0447) | 0.8464 | 0.2565 (± 0.0465) | 0.8355 | 0.2669 (± 0.0481) | 0.5015 |
| n = 4 | n = 4 | n = 4 | n = 3 | ||||
|---|---|---|---|---|---|---|---|
| For highly elastic sample (G′ > 100 000 Pa) | |||||||
| G′ (at 1 rad/s) | 183,109 (± 94,456) | 111,662 (± 75,718) | 0.3810 | 74,551 (± 50,395) | 0.1225 | 45,154 (± 34,271) | 0.0641 |
| G″ (at 1 rad/s) | 43,568 (± 21,332) | 27,415 (± 21,453) | 0.4412 | 18,263 (± 11,377) | 0.1459 | 10,924 (± 7285) | 0.0745 |
| tanδ (at 1 rad/s) | 0.2432 (± 0.0299) | 0.2272 (± 0.0362) | 0.8908 | 0.2502 (± 0.0315) | 0.9886 | 0.2526 (± 0.0595) | 0.9786 |
| G′ (at 10 rad/s) | 236,912 (± 122,817) | 145,972 (± 103,271) | 0.3999 | 93,302 (± 60,342) | 0.1168 | 58,010 (± 43,427) | 0.0659 |
| G″ (at 10 rad/s) | 54,340 (± 29,671) | 32,120 (± 24,897) | 0.3797 | 20,330 (± 13,121) | 0.1185 | 13,729 (± 9456) | 0.0803 |
| tanδ (at 10 rad/s) | 0.2283 (± 0.0243) | 0.2075 (± 0.0246) | 0.6740 | 0.2178 (± 0.0061) | 0.9320 | 0.2420 (± 0.0578) | 0.8889 |
| n = 7 | n = 7 | n = 7 | n = 6 | ||||
|---|---|---|---|---|---|---|---|
| For elastic sample (100 000 Pa > G′ > 1000 Pa) | |||||||
| G′ (at 1 rad/s) | 33,999 (± 23,742) | 18,133 (± 21,186) | 0.5433 | 17,151 (± 23,067) | 0.9883 | 27,299 (± 38,056) | 0.7230 |
| G″ (at 1 rad/s) | 8435 (± 5620) | 4919 (± 5606) | 0.6247 | 4664 (± 6284) | 0.9900 | 7122 (± 10,032) | 0.5802 |
| tanδ (at 1 rad/s) | 0.2549 (± 0.0355) | 0.2936 (± 0.0535) | > 0.9999 | 0.3427 (± 0.2224) | 0.3416 | 0.2949 (± 0.0671) | 0.7706 |
| G′ (at 10 rad/s) | 40,702 (± 28,571) | 21,513 (± 25,010) | 0.5474 | 20,935 (± 27,391) | 0.9925 | 35,549 (± 50,749) | 0.8276 |
| G″ (at 10 rad/s) | 9585 (± 6505) | 5303 (± 5905) | 0.6678 | 5298 (± 6824) | 0.9989 | 8913 (± 12,723) | 0.7473 |
| tanδ (at 10 rad/s) | 0.2421 (± 0.0379) | 0.2683 (± 0.0631) | 0.7958 | 0.3427 (± 0.2224) | 0.3426 | 0.2962 (± 0.0835) | 0.2537 |
| n = 5 | n = 5 | n = 4 | n = 4 | ||||
|---|---|---|---|---|---|---|---|
| For viscoelastic sample (1000 Pa > G′) | |||||||
| G′ (at 1 rad/s) | 1453.5 (± 2831.3) | 1104.9 (± 1875.1) | 0.9921 | 1306.7 (± 1502.5) | 0.9994 | 10.3 (± 13.3) | 0.7975 |
| G″ (at 1 rad/s) | 438.8 (± 854.2) | 360.2 (± 614.7) | 0.9968 | 393.6 (± 456.2) | 0.9994 | 2.6 (± 2.9) | 0.8069 |
| tanδ (at 1 rad/s) | 0.2880 (± 0.0269) | 0.2623 (± 0.0582) | 0.9696 | 0.2783 (± 0.0368) | 0.5187 | 0.4155 (± 0.2553) | 0.9982 |
| G′ (at 10 rad/s) | 2309.5 (± 4540.5) | 682.8 (± 1132.2) | 0.8451 | 2011.5 (± 2365.9) | 0.9986 | 528.1 (± 709.9) | 0.8572 |
| G″ (at 10 rad/s) | 698.7 (± 1374.1) | 238.0 (± 400.1) | 0.8670 | 557.7 (± 675.9) | 0.9948 | 166.2 (± 226.0) | 0.8607 |
| tanδ (at 10 rad/s) | 0.2923 (± 0.0142) | 0.2743 (± 0.0677) | 0.9020 | 0.2797 (± 0.0222) | 0.9614 | 0.2790 (± 0.0523) | 0.9686 |