Table 3.
Comparison of physical parameters and lung functions between urban and rural residents according to height
| Parameters | Height (cm) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <120 | 121–130 | 131–140 | 141–150 | 151–160 | >160 | |||||||
| Urban (33) | Rural (45) | Urban (59) | Rural (43) | Urban (50) | Rural (50) | Urban (66) | Rural (53) | Urban (83) | Rural (60) | Urban (39) | Rural (19) | |
| Height (cm) | 6.48 | 6.38 | 7.39 | 7.63 | 9.821 | 9.26 | 11.38‡ | 12.32 | 12.83‡ | 13.58 | 13.87* | 14.32 |
| Mean (SD*) | (0.57) | (0.72 | (1.53) | (1.13) | (1.38) | (1.34) | (1.49) | (1.53) | (1.4) | (1.21) | (1.00) | (0.82) |
| weight (kg) | 19.3 | 19.6 | 23.54 | 23.42 | 30.66 | 29.06 | 41.38‡ | 36.43 | 44.47 | 43.75 | 55.26 | 53.05 |
| Mean (SD) | (2.78) | (2.56) | (2.9) | (2.86) | (5.92) | (5.45) | (10.35) | (6.68) | (7.10) | (6.94) | (7.80) | (7.54) |
| TV(1) | 0.22 | 0.24 | 0.30 | 0.30 | 0.37 | 0.37 | 0.431 | 0.40 | 0.49 | 0.47 | 0.54 | 0.55 |
| Mean (SD) | (0.06) | (0.07) | (0.08) | (0.08) | (0.08) | (0.08) | (0.08) | (0.07) | (1.00) | (0.08) | (0.09) | (0.06) |
| IRV (I) | 0.54 | 0.53 | 0.66 | 0.65 | 0.89* | 0.81 | 0.95 | 1.00 | 1.06** | 1.15 | 1.23† | 1.41 |
| Mean (SD) | (0.14) | (0.13) | (0.16) | (0.16) | (0.22) | (0.22) | (0.21) | (0.19) | (0.24) | (0.19) | (0.29) | (0.38) |
| FVC(l) | 1.04 | 1.04 | 1.31 | 1.31 | 1.79* | 1.65 | 2.18* | 2.08 | 2.57 | 2.56 | 3.38 | 3.34 |
| Mean (SD) | (0.19) | (0.20) | (0.25) | (0.22) | (0.31) | (0.44) | (0.28) | (0.34) | (0.40) | (0.36) | (0.46) | (0.38) |
| FEVi(l) | 0.99 | 1.02 | 1.24 | 1.26 | 1.62 | 1.55 | 1.95 | 1.88 | 2.27 | 2.29 | 3.06 | 3.00 |
| Mean (SD) | (0.18) | (0.21) | (0.22) | (0.21) | (0.25) | (0.42) | (0.29) | (0.28) | (0.34) | (0.36) | (0.47) | (0.43) |
| FEV 3 (1) | 1.04 | 1.05 | 1.30 | 1.32 | 1.77* | 1.64 | 2.15 | 2.06 | 2.54 | 2.54 | 3.35 | 3.33 |
| Mean (SD) | (0.19) | (0.2) | (0.24) | (0.22) | (0.29) | (0.43) | (0.28) | (0.34) | (0.38) | (0.36) | (0.46) | (0.35) |
| PEFR(l/min) | 119.94 | 108.6 | 153.51 | 154.63 | 195.841 | 172.92 | 230.09* | 205.11 | 245.94 | 238.03 | 323.18 | 325.84 |
| Mean (SD) | (32.73) | (32.24) | (36.25) | (41.34) | (51.81) | (46.12) | (50.95) | (49.4) | (63.59) | (70.27) | (79.02) | (90.76) |
| FEF 25% (I/s) | 1.96 | 1.79 | 2.49 | 2.55 | 3.151 | 2.77 | 3.611 | 3.24 | 3.925 | 3.79 | 5.16 | 5.27 |
| Mean (SD) | (0.54) | (0.59) | (0.66) | (0.69) | (0.87) | (0.79) | (0.83) | (0.85) | (1.12) | (1.17) | (1.43) | (1.43) |
| FEF 50% (1/s) | 1.6 | 1.57 | 1.96 | 2.06 | 2.34 | 2.25 | 2.63 | 2.44 | 3.03 | 2.96 | 4.17 | 3.97 |
| Mean (SD) | (0.37) | (0.47) | (0.59) | (0.54) | (0.72) | (0.63) | (0.81) | (0.66) | (0.79) | (0.96) | (0.93) | (0.95) |
| FEF 75% (1/s) | 1.00 | 0.98 | 1.12 | 1.18 | 1.27 | 1.32 | 1.39 | 1.39 | 1.67 | 1.81 | 2.33 | 2.02 |
| Mean (SD) | (0.27) | (0.36) | (0.38) | (0.23) | (0.44) | (0.35) | (0.68) | (0.51) | (0.53) | (0.71) | (0.78) | (0.61) |
| MW (1/min) | 37.66 | 38.75 | 46.49 | 47.84 | 61.81† | 56.17 | 73.49† | 69.46 | 85.48 | 84.52 | 114.41 | 112.74 |
| Mean (SD) | (6.44) | (7.29) | (8.19) | (6.89) | (9.48) | (8.63) | (10.95) | (10.55) | (12.64) | (13.25) | (17.3) | (13.95) |
‡
P <0.01;
†
P <0.05;
*
P <0.10;
**
P>0.10
SD: Standard Deviation; TV: Tidal Volume; IRV: Inspiratory reserve volume
FVC: Forced vital capacity; FEV1: Timed vital capacity 1 second;
FEV3: Timed vital capacity 3 second; FEF: Forced Expiratory Flow
MW: Maximum voluntary ventilation; PEFR: Peak expiratory flow rate