Table听1 Basic characteristics of study subjects (N鈥=鈥1828)
From: Joint effects of temperature and humidity with PM2.5 on COPD
Factors | COPD group (n鈥=鈥995) | Control group (n鈥=鈥833) | P-value |
|---|---|---|---|
Gender, n (%) | |||
鈥僊补濒别蝉 | 833 (83.7) | 243 (22.6) | 0.000 |
鈥僃别尘补濒别蝉 | 162 (16.3) | 590 (78.4) | 听 |
Age, Mean鈥壜扁塖D (Years) | 70.5鈥壜扁赌10.7 | 63.0鈥壜扁赌8.2 | 0.000 |
BMI, Mean鈥壜扁塖D (kg/m2) | 23.5鈥壜扁赌4.0 | 24.6鈥壜扁赌3.6 | 0.000 |
Smoking, n (%) | |||
鈥僀耻谤谤别苍迟 | 350 (35.2) | 57 (6.8) | 0.000 |
鈥僂虫-蝉尘辞办别谤蝉 | 465 (46.7) | 75 (9.0) | 听 |
鈥僋辞苍-蝉尘辞办别谤蝉 | 180 (18.1) | 701 (84.2) | 听 |
FEV鈧, Mean鈥壜扁塖D (%pred) | 63.7鈥壜扁赌21.6 | 88.0鈥壜扁赌15.9 | 0.000 |
FVC, Mean鈥壜扁塖D (%pred) | 83.4鈥壜扁赌23.0 | 84.8鈥壜扁赌15.4 | 0.132 |
FEV鈧/FVC, Mean鈥壜扁塖D (%) | 58.5鈥壜扁赌12.0 | 83.2鈥壜扁赌6.2 | 0.000 |
PM2.5, 碌g/m3 (尘颈苍鈥搈补虫) | |||
鈥1-Day mean | 15.96鈥壜扁9.3 (3.6鈥47.5) | 15.74鈥壜扁8.3 (1.7鈥60.4) | 0.594 |
鈥7-Day mean | 13.9鈥壜扁4.7 (5.3鈥35.4) | 15.2鈥壜扁5.8 (4.5鈥43.8) | 0.000 |
鈥1-Month mean | 14.0鈥壜扁3.7 (8.1鈥30.7) | 15.2鈥壜扁4.7 (6.7鈥36.1) | 0.000 |
鈥1-Day difference | 0.9鈥壜扁7.3 (鈭11.4鈥23.7) | 0.3鈥壜扁7.5 (鈭41.7鈥38.1) | 0.131 |
鈥7-Day difference | 鈭0.2鈥壜扁4.7 (鈭13.4鈥12.3) | 0.3鈥壜扁5.5 (鈭21.8鈥18.3) | 0.037 |
鈥1-Month difference | 0.4鈥壜扁3.1 (鈭8.4鈥7.6) | 鈭0.1鈥壜扁3.6 (鈭9.9鈥12.3) | 0.001 |
Temperature, 掳C (尘颈苍鈥搈补虫) | |||
鈥1-Day mean | 23.7鈥壜扁4.6 (16.7鈥31.8) | 23.4鈥壜扁5.3 (8.1鈥32.4) | 0.354 |
鈥7-Day mean | 23.2鈥壜扁4.8 (14.6鈥31.1) | 23.4鈥壜扁5.0 (11.2鈥32.1) | 0.414 |
鈥1-Month mean | 23.4鈥壜扁4.8 (15.0鈥30.9) | 23.5鈥壜扁4.7 (13.7鈥31.1) | 0.906 |
鈥1-Day difference | 0.2鈥壜扁1.5 (鈭3.0鈥4.0) | 鈭0.1鈥壜扁1.9 (鈭9.5鈥4.4) | 0.006 |
鈥7-Day difference | 鈭0.2鈥壜扁2.1 (鈭4.7鈥5.3) | 鈭0.1鈥壜扁2.2 (鈭6.9鈥5.9) | 0.182 |
鈥1-Month difference | 鈭0.4鈥壜扁2.3 (鈭4.3鈥4.0) | 鈭0.2鈥壜扁2.8 (鈭7.0鈥5.9) | 0.022 |
RH, % (尘颈苍鈥搈补虫) | |||
鈥1-Day mean | 75.7鈥壜扁7.8 (49.7鈥93.1) | 74.5鈥壜扁8.9 (47.8鈥98.2) | 0.002 |
鈥7-Day mean | 75.3鈥壜扁5.3 (62.8鈥91.2) | 74.6鈥壜扁6.7 (57.2鈥93.9) | 0.020 |
鈥1-Month mean | 75.6鈥壜扁3.4 (67.7鈥86.9) | 74.5鈥壜扁4.9 (64.8鈥91.4) | 0.000 |
鈥1-Day difference | 0.9鈥壜扁7.2 (鈭16.5鈥21.9) | 0.2鈥壜扁7.1 (鈭27.3鈥29.2) | 0.043 |
鈥7-Day difference | 鈭0.3鈥壜扁7.0 (鈭19.8鈥12.9) | 鈭0.1鈥壜扁6.9 (鈭20.0鈥18.3) | 0.552 |
鈥1-Month difference | 鈭0.2鈥壜扁4.3 (鈭11.8鈥7.6) | 0.2鈥壜扁5.1 (鈭14.5鈥13.8) | 0.079 |