Table 4 Stratified analysis of pulmonary function test in female subjects according to general characteristics
N (%) | FEV1p - Mean (Standard error) | FVCp - Mean (Standard error) | FEV1/FVC - (Standard error) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Seoul | Jeju | Seoul | Jeju | p-value | Seoul | Jeju | p-value | Seoul | Jeju | p-value | |
Education level | |||||||||||
Low | 175 (38.6) | 12 (26.0) | 93.28 (1.47) | 87.17 (4.03) | 0.159 | 92.20 (1.02) | 84.81 (3.53) | 0.047 | 0.79 (0.006) | 0.81 (0.019) | 0.270 |
High | 234 (61.4) | 30 (74.0) | 92.37 (0.93) | 94.44 (3.46) | 0.564 | 93.43 (0.99) | 98.60 (1.93) | 0.019 | 0.83 (0.005) | 0.81 (0.018) | 0.419 |
Household income | |||||||||||
Low | 162 (37.8) | 12 (27.5) | 91.15 (1.53) | 85.24 (2.81) | 0.068 | 90.87 (1.17) | 83.97 (2.17) | 0.006 | 0.80 (0.006) | 0.83 (0.021) | 0.172 |
High | 247 (62.2) | 30 (72.5) | 93.64 (0.97) | 95.91 (4.11) | 0.593 | 94.24 (0.91) | 100.02 (2.06) | 0.012 | 0.82 (0.006) | 0.80 (0.017) | 0.346 |
Occupational class | |||||||||||
Blue collar | 123 (28.2) | 8 (20.1) | 91.60 (1.65) | 85.70 (3.89) | 0.448 | 91.86 (1.43) | 84.44 (2.54) | 0.308 | 0.80 (0.006) | 0.80 (0.017) | 0.773 |
White collar | 286 (71.8) | 34 (79.9) | 93.14 (0.95) | 94.20 (3.56) | 0.774 | 93.41 (0.81) | 97.51 (1.84) | 0.044 | 0.82 (0.005) | 0.82 (0.014) | 0.740 |
Smoking status | |||||||||||
Smoker | 29 (7.8) | 1 (1.7) | 90.31 (2.39) | 97.45 (0) | 0.800 | 90.98 (2.18) | 114.60 (0) | 0.133 | 0.83 (0.010) | 0.73 (0) | 0.133 |
Non-smoker | 380 (92.2) | 41 (98.3) | 92.97 (0.88) | 92.33 (2.72) | 0.822 | 93.19 (0.77) | 94.35 (1.59) | 0.515 | 0.81 (0.005) | 0.81 (0.012) | 0.806 |
Drinking status | |||||||||||
Heavy | 43 (11.8) | 11 (28.2) | 91.38 (1.93) | 93.34 (0.99) | 0.368 | 92.85 (1.55) | 98.28 (0.84) | 0.003 | 0.83 (0.018) | 0.80 (0.011) | 0.231 |
Social | 366 (88.2) | 31 (71.8) | 92.88 (0.87) | 92.02 (3.49) | 0.812 | 92.99 (0.70) | 93.17 (2.27) | 0.940 | 0.81 (0.004) | 0.82 (0.015) | 0.654 |
Age (years) | |||||||||||
Young (19–38) | 64 (19.4) | 13 (35.0) | 91.77 (1.28) | 93.61 (2.54) | 0.521 | 93.12 (1.30) | 98.40 (3.01) | 0.111 | 0.85 (0.008) | 0.82 (0.020) | 0.127 |
Middle (39–58) | 232 (58.8) | 22 (48.2) | 92.06 (1.01) | 91.10 (5.24) | 0.858 | 93.72 (1.04) | 92.44 (4.85) | 0.797 | 0.81 (0.005) | 0.81 (0.012) | 0.728 |
Old (> 58) | 113 (21.7) | 7 (16.8) | 95.32 (1.86) | 91.95 (5.65) | 0.436 | 91.13 (1.26) | 86.36 (7.57) | 0.430 | 0.78 (0.008) | 0.78 (0.009) | 0.906 |