Research Article
Establishment of Reference Norms for Lung Function Parameters of Healthy Sri Lankan Tamils
Table 2
Mean ± SD of lung function parameters of males in each age group.
| Age group | VC (L) | FVC (L) | FEV1 (L) | FEV1% | FEF 25–75 (L/S) | MEF75 (L/S) | MEF50 (L/S) | MEF25 (L/S) | PEFR (L/min) |
| 14 | 2.61 ± 0.51 | 2.68 ± 0.53 | 2.35 ± 0.46 | 88.56 ± 4.15 | 2.85 ± 0.59 | 4.79 ± 0.98 | 3.26 ± 0.69 | 1.52 ± 0.36 | 327.01 ± 62.15 | 15 | 3.17 ± 0.57 | 3.28 ± 0.59 | 2.92 ± 0.5 | 87.78 ± 4.19 | 3.35 ± 0.91 | 5.85 ± 1.22 | 3.80 ± 1.05 | 1.83 ± 0.63 | 377.5 ± 68.63 | 16 | 3.48 ± 0.62 | 3.60 ± 0.6 | 3.18 ± 0.51 | 88.97 ± 5.76 | 3.85 ± 0.94 | 6.49 ± 1.25 | 4.26 ± 1.07 | 2.13 ± 0.68 | 419.56 ± 62.13 | 17 | 3.59 ± 0.49 | 3.72 ± 0.50 | 3.29 ± 0.41 | 88.77 ± 5.56 | 4.00 ± 0.84 | 6.77 ± 1.32 | 4.58 ± 0.96 | 2.13 ± 0.5 | 429.64 ± 64.69 | 18 | 3.64 ± 0.52 | 3.80 ± 0.56 | 3.23 ± 0.48 | 86.17 ± 6.17 | 3.69 ± 0.86 | 6.54 ± 1.56 | 4.23 ± 1.03 | 1.92 ± 0.49 | 445.6 ± 65.57 | 19 | 3.91 ± 0.66 | 4.10 ± 0.65 | 3.54 ± 0.54 | 87.17 ± 5.2 | 4.02 ± 0.85 | 6.84 ± 1.23 | 4.59 ± 1.05 | 2.16 ± 0.54 | 454.26 ± 65.89 | 20 | 3.65 ± 0.52 | 3.86 ± 0.58 | 3.45 ± 0.52 | 89.47 ± 5.20 | 4.27 ± 0.97 | 7.40 ± 1.29 | 4.82 ± 1.07 | 2.34 ± 0.67 | 469.58 ± 60.24 | 21–25 | 3.72 ± 0.58 | 3.88 ± 0.55 | 3.30 ± 0.48 | 85.03 ± 5.6 | 3.57 ± 0.89 | 6.57 ± 1.45 | 4.09 ± 1.08 | 1.83 ± 0.48 | 446.84 ± 73.92 | 26–30 | 3.69 ± 0.51 | 3.82 ± 0.49 | 3.26 ± 0.40 | 85.20 ± 4.07 | 3.61 ± 0.70 | 7.14 ± 1.41 | 4.24 ± 0.88 | 1.71 ± 0.37 | 480.81 ± 76.03 | 31–35 | 3.57 ± 0.55 | 3.70 ± 0.56 | 3.15 ± 0.48 | 85.09 ± 4.36 | 3.59 ± 0.88 | 7.18 ± 1.48 | 4.26 ± 1.14 | 1.66 ± 0.42 | 476.33 ± 60.19 | 36–40 | 3.43 ± 0.53 | 3.5 ± 0.54 | 3.02 ± 0.44 | 86.354 ± 4.48 | 3.66 ± 0.81 | 7.16 ± 1.47 | 4.39 ± 1.07 | 1.67 ± 0.38 | 467.1 ± 66.0 | 41–45 | 3.47 ± 0.55 | 3.54 ± 0.55 | 2.99 ± 0.43 | 84.56 ± 5.26 | 3.47 ± 0.94 | 7.09 ± 1.58 | 4.15 ± 1.12 | 1.58 ± 0.50 | 481.04 ± 67.32 | 46–50 | 3.19 ± 0.52 | 3.24 ± 0.52 | 2.75 ± 0.46 | 84.8 ± 4.59 | 3.2 ± 0.83 | 6.39 ± 1.39 | 3.90 ± 1.05 | 1.46 ± 0.42 | 449.33 ± 79.44 | 51–55 | 3.11 ± 0.59 | 3.17 ± 0.58 | 2.67 ± 0.50 | 84.22 ± 5.29 | 3.05 ± 0.86 | 6.32 ± 1.64 | 3.68 ± 1.23 | 1.38 ± 0.44 | 448.57 ± 78.44 | 56–60 | 3.05 ± 0.69 | 3.08 ± 0.68 | 2.56 ± 0.57 | 83.46 ± 5.76 | 2.86 ± 0.99 | 5.96 ± 1.76 | 3.52 ± 1.23 | 1.29 ± 0.47 | 438.18 ± 106.69 | >60 | 2.62 ± 0.71 | 2.63 ± 0.73 | 2.15 ± 0.56 | 82.65 ± 5.95 | 2.30 ± 0.72 | 5.07 ± 1.42 | 2.91 ± 0.90 | 0.99 ± 0.38 | 367.14 ± 75.10 |
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