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Volume 63, Issue 12
Using the lower limit of normal for the FEV1/FVC ratio reduces the misclassification of airway obstruction
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Chronic obstructive pulmonary disease
Using the lower limit of normal for the FEV
1
/FVC ratio reduces the misclassification of airway obstruction
Online download statistics by month:
Online download statistics by month: September 2008 to August 2024
Abstract
Full
Pdf
Sep 2008
266
0
96
Oct 2008
124
0
66
Nov 2008
343
62
184
Dec 2008
276
115
211
Jan 2009
247
70
67
Feb 2009
268
55
76
Mar 2009
307
80
65
Apr 2009
175
64
70
May 2009
125
54
41
Jun 2009
98
52
44
Jul 2009
92
30
25
Aug 2009
80
34
34
Sep 2009
109
38
51
Oct 2009
108
46
56
Nov 2009
149
43
36
Dec 2009
75
21
28
Jan 2010
122
50
47
Feb 2010
103
35
35
Mar 2010
164
41
40
Apr 2010
135
63
34
May 2010
125
51
48
Jun 2010
87
25
25
Jul 2010
103
46
38
Aug 2010
97
26
24
Sep 2010
114
33
22
Oct 2010
182
58
52
Nov 2010
141
49
50
Dec 2010
101
39
41
Jan 2011
85
23
34
Feb 2011
112
41
35
Mar 2011
143
45
45
Apr 2011
131
35
25
May 2011
108
28
17
Jun 2011
86
26
28
Jul 2011
117
31
22
Aug 2011
96
28
30
Sep 2011
122
30
32
Oct 2011
109
28
46
Nov 2011
157
44
31
Dec 2011
119
16
19
Jan 2012
135
30
21
Feb 2012
121
42
40
Mar 2012
180
30
36
Apr 2012
143
25
30
May 2012
137
46
32
Jun 2012
122
21
29
Jul 2012
93
10
8
Aug 2012
62
14
14
Sep 2012
61
15
12
Oct 2012
125
36
29
Nov 2012
103
27
25
Dec 2012
83
61
38
Jan 2013
90
93
106
Feb 2013
115
86
90
Mar 2013
90
117
77
Apr 2013
110
149
143
May 2013
120
128
169
Jun 2013
64
84
154
Jul 2013
78
73
123
Aug 2013
78
72
106
Sep 2013
61
105
177
Oct 2013
79
107
340
Nov 2013
49
92
409
Dec 2013
62
83
423
Jan 2014
53
75
476
Feb 2014
74
118
490
Mar 2014
130
113
592
Apr 2014
91
121
414
May 2014
59
89
346
Jun 2014
72
87
232
Jul 2014
65
98
185
Aug 2014
42
97
161
Sep 2014
44
111
305
Oct 2014
100
117
106
Nov 2014
74
105
85
Dec 2014
30
72
85
Jan 2015
87
43
135
Feb 2015
96
55
112
Mar 2015
99
84
306
Apr 2015
67
62
231
May 2015
95
84
288
Jun 2015
94
76
275
Jul 2015
49
58
244
Aug 2015
61
66
216
Sep 2015
121
118
320
Oct 2015
47
52
149
Nov 2015
67
95
263
Dec 2015
82
79
249
Jan 2016
86
93
269
Feb 2016
69
106
255
Mar 2016
87
99
287
Apr 2016
97
109
381
May 2016
96
105
336
Jun 2016
47
106
263
Jul 2016
91
110
292
Aug 2016
58
102
308
Sep 2016
94
129
333
Oct 2016
109
186
457
Nov 2016
93
200
453
Dec 2016
75
115
414
Jan 2017
76
135
366
Feb 2017
130
74
416
Mar 2017
96
248
361
Apr 2017
32
300
99
May 2017
51
310
95
Jun 2017
89
275
88
Jul 2017
218
189
56
Aug 2017
256
196
59
Sep 2017
575
433
157
Oct 2017
555
449
159
Nov 2017
561
406
225
Dec 2017
422
350
189
Jan 2018
529
494
229
Feb 2018
781
644
198
Mar 2018
859
749
264
Apr 2018
642
576
531
May 2018
615
553
269
Jun 2018
616
565
166
Jul 2018
489
433
133
Aug 2018
402
346
122
Sep 2018
465
419
215
Oct 2018
574
498
168
Nov 2018
625
532
133
Dec 2018
420
380
108
Jan 2019
412
373
123
Feb 2019
503
446
162
Mar 2019
554
470
188
Apr 2019
790
679
240
May 2019
862
784
231
Jun 2019
474
436
159
Jul 2019
507
461
175
Aug 2019
555
521
134
Sep 2019
3743
3702
135
Oct 2019
764
679
133
Nov 2019
660
579
126
Dec 2019
419
381
76
Jan 2020
564
523
58
Feb 2020
616
571
94
Mar 2020
1051
943
154
Apr 2020
443
375
158
May 2020
492
403
171
Jun 2020
218
174
115
Jul 2020
278
247
95
Aug 2020
213
194
86
Sep 2020
382
341
136
Oct 2020
432
363
114
Nov 2020
380
319
145
Dec 2020
371
344
78
Jan 2021
442
420
88
Feb 2021
482
454
91
Mar 2021
690
621
108
Apr 2021
501
407
111
May 2021
473
442
94
Jun 2021
286
289
60
Jul 2021
328
333
82
Aug 2021
293
297
56
Sep 2021
363
364
96
Oct 2021
427
364
97
Nov 2021
239
202
74
Dec 2021
394
374
50
Jan 2022
377
338
75
Feb 2022
498
481
101
Mar 2022
655
604
99
Apr 2022
718
716
99
May 2022
816
763
162
Jun 2022
597
580
69
Jul 2022
521
490
66
Aug 2022
610
590
95
Sep 2022
722
688
69
Oct 2022
881
838
90
Nov 2022
850
828
77
Dec 2022
662
633
79
Jan 2023
799
767
103
Feb 2023
778
718
77
Mar 2023
936
799
139
Apr 2023
621
581
120
May 2023
821
735
128
Jun 2023
655
625
97
Jul 2023
659
647
72
Aug 2023
698
669
88
Sep 2023
480
425
57
Oct 2023
608
497
105
Nov 2023
589
537
75
Dec 2023
650
454
89
Jan 2024
230
231
106
Feb 2024
301
292
82
Mar 2024
580
458
227
Apr 2024
584
451
133
May 2024
883
475
54
Jun 2024
477
80
6
Jul 2024
644
99
7
Aug 2024
892
76
13
Total
62334
52330
26872
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