Research Article
Establishment of Reference Norms for Lung Function Parameters of Healthy Sri Lankan Tamils
Table 4
Correlation co-efficient between lung function parameters & anthropometric characters in 14–20 years.
| | Age | Height (cm) | Weight (kg) | BMI (kg/m2) | SH (cm) | AS (cm) | MAC (cm) | SHHR | CE (cm) |
| Females | VC | 0.107 | 0.529 | 0.408 | 0.223 | 0.525 | 0.521 | 0.284 | 0.054 | 0.153 | FVC | 0.130 | 0.558 | 0.437 | 0.240 | 0.546 | 0.553 | 0.312 | 0.046 | 0.153 | FEV1 | 0.114 | 0.549 | 0.393 | 0.197 | 0.539 | 0.526 | 0.278 | 0.048 | 0.157 | FEV1% | −0.048 | −0.057 | −0.161 | −0.147 | −0.053 | −0.110 | −0.126 | 0.000 | 0.009 | FEF25–75 | 0.074 | 0.241 | 0.178 | 0.094 | 0.240 | 0.224 | 0.144 | 0.027 | 0.077 | MEF75 | 0.095 | 0.222 | 0.245 | 0.170 | 0.236 | 0.246 | 0.240 | 0.046 | 0.109 | MEF50 | 0.058 | 0.229 | 0.232 | 0.157 | 0.253 | 0.223 | 0.202 | 0.060 | 0.090 | MEF25 | 0.014 | 0.206 | 0.033 | −0.045 | 0.181 | 0.152 | −0.003 | −0.011 | 0.050 | PEFR | 0.072 | 0.305 | 0.282 | 0.174 | 0.311 | 0.307 | 0.239 | 0.043 | 0.143 |
| Males | VC | 0.527 | 0.725 | 0.632 | 0.426 | 0.694 | 0.708 | 0.549 | 0.142 | 0.109 | FVC | 0.564 | 0.747 | 0.635 | 0.420 | 0.710 | 0.728 | 0.544 | 0.138 | 0.104 | FEV1 | 0.560 | 0.692 | 0.573 | 0.369 | 0.689 | 0.675 | 0.487 | 0.180 | 0.096 | FEV1% | −0.029 | −0.143 | −0.251 | −0.236 | −0.107 | −0.159 | −0.227 | 0.018 | −0.052 | FEF25–75 | 0.425 | 0.439 | 0.302 | 0.163 | 0.456 | 0.430 | 0.256 | 0.141 | 0.047 | MEF75 | 0.511 | 0.510 | 0.414 | 0.267 | 0.534 | 0.502 | 0.389 | 0.171 | 0.050 | MEF50 | 0.423 | 0.414 | 0.303 | 0.178 | 0.431 | 0.410 | 0.270 | 0.135 | 0.042 | MEF25 | 0.355 | 0.383 | 0.206 | 0.071 | 0.395 | 0.361 | 0.156 | 0.117 | 0.020 | PEFR | 0.570 | 0.575 | 0.465 | 0.299 | 0.609 | 0.565 | 0.454 | 0.203 | 0.025 |
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≤ 0.05, SH-sitting height, AS-arm span, MAC-mid arm circumference, SHHR-sitting height to height ratio, CE-chest expansion. |