Lung Diffusing Capacity in Dutch Special Operations Forces Divers Exposed to Oxygen Rebreathers over 18 Years
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. Pulmonary Function Tests
3.2. Diffusing Capacity
4. Discussion
Strengths and Weaknesses
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Non-Smoking (n = 208) | Smoking (n = 49) | p | |
---|---|---|---|
Age (years) | 27.0 (IQR 24.0–32.0) | 28.0 (IQR 23.0–30.0) | 0.575 |
Height (cm) | 183 (SD 6.2) | 183 (SD 6.4) | 0.854 |
IVC (L) | 6.31 (SD 0.79) Z 0.64 | 6.29 (SD 0.73) Z 0.18 | 0.868 |
FEV1 (L) | 4.87 (SD 0.65) Z 0.09 | 4.92 (SD 0.58) Z 0.61 | 0.610 |
FEV1/IVC | 0.77 (SD 0.53) Z −0.87 | 0.78 (SD 0.50) Z −0.71 | 0.117 |
TLCO (mmol/min/kPa) | 12.88 (SD 2.19) Z 0.69 | 11.83 (SD 2.49) Z 0.05 | 0.004 * |
VA (L) | 7.32 (SD 1.33) Z 0.28 | 6.70 (SD 1.90) Z −0.50 | 0.007 * |
KCO (mmol/min/kPa/L) | 1.90 (SD 1.08) Z 1.11 | 2.21 (SD 1.74) Z 2.49 | 0.118 |
Hb (mmol/L) | 9.29 (SD 0.78) | 9.56 (SD 0.66) | 0.025 * |
IVC | p | FEV1 | p | FEV1/ IVC | p | TLCO | p | VA | p | KCO | p | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Intercept | 6.337 | 0.000 * | 5.621 | 0.000 * | 81.286 | 0.000 * | 13.185 | 0.000 * | 7.273 | 0.000 * | 1.817 | 0.000 * |
Dive years | 0.014 | 0.204 | 0.006 | 0.390 | −0.055 | 0.443 | −0.058 | 0.016 * | 0.002 | 0.890 | −0.008 | 0.010 * |
Age | −0.024 | 0.002 * | −0.026 | 0.000 * | −0.138 | 0.006 * | −0.048 | 0.001 * | 0.002 | 0.815 | −0.007 | 0.001 * |
Non-smoking | 0.070 | 0.446 | 0.027 | 0.708 | −0.388 | 0.539 | 1.019 | 0.000 * | 0.181 | 0.088 | 0.095 | 0.010 * |
Value | Z-Score | |
---|---|---|
IVC (L) | 6.35 (SD 0.82) | 1.308 (baseline 0.64) |
FEV1 (L) | 4.77 (SD 0.56) | 0.921 (baseline 0.09) |
FEV1/IVC | 75.7 (SD 5.4) | −0.68 (baseline −0.87) |
TLCO (mmol/min/kPa) | 11.57 (SD 0.72) | 0.610 (baseline 0.69) |
VA (L) | 7.66 (SD 1.14) | 0.671 (baseline 0.28) |
KCO (mmol/min/kPa/L) | 1.51 (SD 0.23) | −0.031 (baseline 1.11) |
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den Ouden, T.H.B.; Wingelaar, T.T.; Endert, E.L.; van Ooij, P.-J.A.M. Lung Diffusing Capacity in Dutch Special Operations Forces Divers Exposed to Oxygen Rebreathers over 18 Years. Oxygen 2022, 2, 40-47. https://doi.org/10.3390/oxygen2020005
den Ouden THB, Wingelaar TT, Endert EL, van Ooij P-JAM. Lung Diffusing Capacity in Dutch Special Operations Forces Divers Exposed to Oxygen Rebreathers over 18 Years. Oxygen. 2022; 2(2):40-47. https://doi.org/10.3390/oxygen2020005
Chicago/Turabian Styleden Ouden, Tom H.B., Thijs T. Wingelaar, Edwin L. Endert, and Pieter-Jan A.M. van Ooij. 2022. "Lung Diffusing Capacity in Dutch Special Operations Forces Divers Exposed to Oxygen Rebreathers over 18 Years" Oxygen 2, no. 2: 40-47. https://doi.org/10.3390/oxygen2020005
APA Styleden Ouden, T. H. B., Wingelaar, T. T., Endert, E. L., & van Ooij, P.-J. A. M. (2022). Lung Diffusing Capacity in Dutch Special Operations Forces Divers Exposed to Oxygen Rebreathers over 18 Years. Oxygen, 2(2), 40-47. https://doi.org/10.3390/oxygen2020005