10 July 2024 : Clinical Research
Assessing the Consequences of Smoking Tobacco Products with Consideration of the Forced Oscillation Technique
Aleksandra Grudzińska
1ABCDEF, Paulina Okrzymowska 1ABCDEF*, Agata Tomaszczyk 1EF, Dariusz Kalka 1DEF, Krystyna Rożek-Piechura 1ABCDEF
DOI: 10.12659/MSM.944406
Med Sci Monit 2024; 30:e944406
Table 4 Associations of forced oscillation technique (FOT) parameters with spirometric parameters in the groups assessed.
| Parameters compared | Control group | Cigarette smokers | Nicotine alternative users | |
|---|---|---|---|---|
| Rrs 5Hz Rtot% | VC | −0.03 | −0.23 | −0.65* |
| Rrs 5Hz Rtot% | FVC | 0.05 | −0.12 | −0.66* |
| Rrs 5Hz Rtot% | FEV1 | 0.04 | −0.23 | −0.73* |
| Rrs 5Hz Rtot% | PEF | −0.06 | −0.18 | −0.69* |
| Rrs 5Hz Rtot% | MEF 50 | −0.20 | −0.11 | −0.64* |
| Rrs 5Hz Rtot% | MEF 25 | −0.11 | −0.11 | −0.77* |
| Xrs 5 Hz Xtot% | VC% | −0.42 | −0.18 | −0.59* |
| Xrs 5 Hz Xtot% | FVC% | −0.43 | −0.21 | −0.71* |
| Xrs 5 Hz Xtot% | FEV1% | −0.29 | −0.29 | −0.78* |
| Xrs 5 Hz Xtot% | MEF 50 | −0.36 | −0.25 | −0.51* |
| Xrs 5 Hz Xtot% | MEF 25 | −0.09 | −0.26 | −0.54* |
| AX insp% | FEV1% | −0.32 | −0.20 | −0.73* |
| AX insp% | MEF 25 | −0.07 | −0.47* | −0.35 |
| Rrs 11 Hz Rtot% | VC | 0.01 | −0.19 | −0.73* |
| Rrs 11 Hz Rtot% | FVC | 0.09 | −0.09 | −0.74* |
| Rrs 11 Hz Rtot% | FEV1 | 0.07 | −0.20 | −0.80* |
| Rrs 11 Hz Rtot% | PEF | 0.00 | −0.16 | −0.74* |
| Rrs 11 Hz Rtot% | MEF 50 | −0.20 | −0.11 | −0.70* |
| Rrs 11 Hz Rtot% | MEF 25 | −0.12 | −0.12 | −0.79* |
| Starting day smoking/using from alternatives form of smoking | FVC% | N/A | −0.05 | 0.58* |
| Starting day smoking/using from alternatives form of smoking | FEV1% | N/A | −0.04 | 0.58* |
| Starting day smoking/using from alternatives form of smoking | Rrs 11 Hz Rtot | N/A | −0.48* | −0.44 |
| * Statistically significant. Rrs 5 Hz Rinsp – inspiratory resistance at 5 Hz; Rrs 5 Hz Rexp – expiratory resistance at 5 Hz; Rrs 5 Hz Rtot – total respiratory resistance at 5 Hz; Xrs 5 Hz Xinsp [%] – inspiratory reactance at 5 Hz; Xrs 5 Hz Xexp [%] – expiratory reactance at 5 Hz; Xrs 5 Hz; Xtot [%] – total reactance at 5 Hz; AX insp – the area under inspiratory reactance curve; Rrs 11 Hz Rinsp – inspiratory resistance at 11 Hz; Rrs 11 Hz Rexp – expiratory resistance at 11 Hz; Rrs 11 Hz Rtot – total respiratory resistance at 11 Hz; Xrs 5 Hz Xinsp [%] – inspiratory reactance at 11 Hz; Xrs 11 Hz Xexp [%] – expiratory reactance at 11 Hz; Xrs 11Hz; Xtot [%] – total reactance at 11 Hz; VC – vital capacity; FVC – forced vital capacity; FEV1 – forced expiratory volume in 1 s; PEF – peak expiratory flow; MEF50 – maximum expiratory flow in 50% of forced vital capacity; MEF25 – maximum expiratory flow in 25% of forced vital capacity; MIF50 – maximum inspiratory flow in 50% of forced vital capacity; PImax – maximum inspiratory pressure; PEmax – maximum expiratory pressure. | ||||