24 August 2020 : Original article
Reference Ranges and Determinant Factors for Fractional Exhaled Nitric Oxide in a Healthy Saudi Adult Population
Syed Shahid Habib1ABCDEFG*, Mohammad A. Alzoghaibi1ABDFG, Syed Hamid Habib2ACDEF, Khalid A. Al-Regaiey1ACDFGDOI: 10.12659/MSMBR.926382
Med Sci Monit Basic Res 2020; 26:e926382
Table 2 Differences by sex in demographic characteristics, and FENO levels in all participants.
| Variables | Women (n=105) | Men (n=307) | P value | ||
|---|---|---|---|---|---|
| Mean±SD | Min–Max | Mean±SD | Min–Max | ||
| Age (years) | 30.7±9.9 | 14.0–53.0 | 39.1±16.1 | 13.0–72.0 | 0.001 |
| Height (cm) | 159.4±5.5 | 148.0–173.0 | 170.8±7.3 | 147.0–187.0 | 0.001 |
| BSA | 2.5±0.2 | 2.2–3.0 | 2.9±0.3 | 2.3–3.5 | 0.001 |
| Weight (kg) | 66.2±15.1 | 36.1–140.0 | 80.3±16.8 | 18.3–135.7 | 0.025 |
| Obesity Degree (%) | 126.8±30.6 | 78.0–268.0 | 127.9±25.5 | 74.0–211.0 | 0.001 |
| BMI | 26.1±6.2 | 15.6–55.4 | 27.6±5.4 | 15.6–45.9 | 0.036 |
| FENO (ppb) | 18.6±9.3 | 5.7–42.0 | 21.3±8.9 | 5.0–55.0 | 0.009 |
| FENO/BSA | 7.3±4.4 | 2.2–17.7 | 7.4±3.4 | 1.6–31.9 | 0.784 |
| BSA – body surface area; BMI – body mass index; FENO – fractional exhaled nitric oxide; ppb, parts per billion. | |||||