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Table 4 Forced expiratory volume in 1 second (FEV 1 and FEV 1 %) in active workers

From: Systemic inflammation in 222.841 healthy employed smokers and nonsmokers: white blood cell count and relationship to spirometry

 

Male

Female

Age (years)

Nonsmokers

Smokers

Nonsmokers

Smokers

 

(n=78 306)

(n=85 153)

(n=27 883)

(n=31 499)

16–24

FEV 1 (l)

4.245 (4.225–4.265)

4.219 (4.203–4.234)

3.075 (3.050–3.100)

3.083 (3.065–3.101)

FEV 1 %

98.5 (98.1–98.9)

98.3 (98.0–98.6)

94.3 (93.6–94.9)

94.6 (94.1–95.1)

25–34

FEV 1 (l)

4.170 (4.160–4.1807)

4.140 (4.132–4.148)

3.073 (3.063–3.084)

3.067 (3.060–3.075)

FEV 1 %

100.4 (100.2–100.6)*

99.3 (99.1–99.5)

98.6 (98.3–98.9)*

97.8 (97.5–97.9)

35–44

FEV 1 (l)

3.936 (3.928–3.945)

3.832 (3.824–3.839)

2.918 (2.908–2.929)

2.861 (2.851–2.870)

FEV 1 %

102.3 (102.1–102.5)*

99.4 (99.2–99.6)

102.6 (102.2–102.9)*

100.1 (99.8–100.4)

45–54

FEV 1 (l)

3.588 (3.580–3.596)

3.388 (3.379–3.397)

2.630 (2.620–2.639)

2.536 ( 2.525–2.548)

FEV 1 %

102.6 (102.3–102.8)*

97.0 (96.7–97.2)

103.9 (103.5–104.2)*

98.7 (98.3–99.1)

55–64

FEV 1 (l)

3.142 (3.131–3.153)*

2.917 (2.901–2.932)

2.305 (2.290–2.320)

2.219 (2.186–2.239)

FEV 1 %

100.8 (100.4–101.1)

93.5 (93.0–93.9)

103.6 (103.0–104.2)

98.6 (97.5–99.8)

>64

FEV 1 (l)

2.887 (2.825–2.949)

2.576 (2.475–2.677)

2.051 (1.955–2.14)

1.851 (1.538–2.163)

FEV 1 %

98.9 (97.7–100.8)*

90.3 (86.8–93.7)

104.5 (99.9–109)

86.5 (79.1–93.9)

  1. Values are means and 95% confidence intervals.
  2. * Statistically significant differences in FEV1% between smokers and nonsmokers for males and females (t test for independent groups, P < 0.001).
  3. FEV1(l): Forced expiratory volume in 1 second in liters.
  4. FEV1%: Forced expiratory volume in one second in percentage respect to normal values.
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Tobacco Induced Diseases

ISSN: 1617-9625

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