Background
Methods
Study type and data source
Patient population
Definition concomitant usage of LABA and ICS
At least one prescription in at least one quarter within a particular calendar year | |||
---|---|---|---|
Category | LABA & ICS (fixed or non-fixed in the same quarter) | LABA (no ICS) | ICS (no LABA) |
Concomitant LABA/ICS users | X | - | Possible* |
Switchers | X | X | Possible** |
Non-concomitant LABA/ICS users | - | X | X** |
LABA users without ICS | - | X | - |
ICS users without LABA | - | - | X* |
Statistical analysis
Results
Period prevalence rates
Analysis of concomitant LABA and ICS usage
Concomitant LABA and ICS users | Switchers | Non-concomitant LABA and ICS users | LABA users without ICS | ICS users without LABA | |
---|---|---|---|---|---|
N (%)
| 177,159 (57.6%) | 14,899 (4.8%) | 1,936 (0.6%) | 16,749 (5.4%) | 96,615 (31.4%) |
Age in years (mean ± SD)
| 49.1 ± 21.9 | 59.1 ± 17.8 | 55.4 ± 20.2 | 58.0 ± 19.3 | 37.5 ± 24.9 |
Females (n [%])
| 98,071 (55.4%) | 8,258 (55.4%) | 1,184 (61.2%) | 8,705 (52.0%) | 52,907 (54.8%) |
Year | |||||
---|---|---|---|---|---|
2004 | 2005 | 2006 | 2007 | 2008 | |
Concomitant LABA and ICS users
| 123,873 (52.0%) | 152,857 (54.6%) | 152,418 (53.3%) | 172,225 (55.3%) | 177,159 (57.6%) |
Switchers
| 12,785 (5.4%) | 13,266 (4.7%) | 14,207 (5.0%) | 14,446 (4.6%) | 14,899 (4.8%) |
Non-concomitant LABA and ICS users
| 1,314 (0.6%) | 1,686 (0.6%) | 1,992 (0.7%) | 1,896 (0.6%) | 1,936 (0.6%) |
LABA users without ICS
| 15,612 (6.5%) | 19,200 (6.9%) | 18,193 (6.4%) | 17,810 (5.7%) | 16,749 (5.4%) |
ICS users without LABA
| 84,818 (35.6%) | 92,970 (33.2%) | 99,334 (34.7%) | 105,252 (33.8%) | 96,615 (31.4%) |
Age group | Concomitant LABA and ICS users | Switchers | Non-concomitant LABA and ICS users | LABA users without ICS | ICS users without LABA | All LABA/ICS treatment categories | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | |
0-9
| 4,242 (25.2%) | 2,288 (24.2%) | 103 (0.6%) | 53 (0.6%) | 36 (0.2%) | 20 (0.2%) | 95 (0.6%) | 32 (0.3%) | 12,376 (73.4%) | 7,053 (74.7%) | 16,852 (100%) | 9,446 (100%) |
10-19
| 10,347 (56.9%) | 7,060 (56.1%) | 247 (1.4%) | 151 (1.2%) | 60 (0.3%) | 47 (0.4%) | 434 (2.4%) | 294 (2.3%) | 7,095 (39.0%) | 5,035 (40.0%) | 18,183 (100%) | 12,587 (100%) |
20-29
| 6,660 (63.6%) | 8,014 (60.8%) | 214 (2.0%) | 329 (2.5%) | 23 (0.2%) | 48 (0.4%) | 448 (4.3%) | 401 (3.0%) | 3,123 (29.8%) | 4,385 (33.3%) | 10,468 (100%) | 13,177 (100%) |
30-39
| 7,972 (62.5%) | 10,363 (58.7%) | 386 (3.0%) | 585 (3.3%) | 54 (0.4%) | 101 (0.6%) | 579 (4.5%) | 698 (4.0%) | 3,758 (29.5%) | 5,914 (33.5%) | 12,749 (100%) | 17,661 (100%) |
40-49
| 11,503 (63.2%) | 16,413 (60.4%) | 790 (4.3%) | 1,129 (4.2%) | 95 (0.5%) | 179 (0.7%) | 904 (5.0%) | 1,224 (4.5%) | 4,916 (27.0%) | 8,222 (30.3%) | 18,208 (100%) | 27,167 (100%) |
50-59
| 10,310 (62.4%) | 15,611 (60.0%) | 1,000 (6.1%) | 1,494 (5.7%) | 112 (0.7%) | 209 (0.8%) | 1,126 (6.8%) | 1,436 (5.5%) | 3,962 (24.0%) | 7,261 (27.9%) | 16,510 (100%) | 26,011 (100%) |
60-69
| 12,488 (61.6%) | 16,885 (59.7%) | 1,659 (8.2%) | 1,921 (6.8%) | 148 (0.7%) | 242 (0.9%) | 1,779 (8.8%) | 1,794 (6.3%) | 4,208 (20.7%) | 7,464 (26.4%) | 20,282 (100%) | 28,306 (100%) |
70-79
| 11,291 (61.7%) | 14,340 (60.9%) | 1,673 (9.1%) | 1,780 (7.6%) | 180 (1.0%) | 229 (1.0%) | 1,868 (10.2%) | 1,770 (7.5%) | 3,294 (18.0%) | 5,445 (23.1%) | 18,306 (100%) | 23,564 (100%) |
80-89
| 4,071 (64.0%) | 6,632 (63.3%) | 547 (8.6%) | 777 (7.4%) | 44 (0.7%) | 102 (1.0%) | 766 (12.0%) | 972 (9.3%) | 934 (14.7%) | 1,986 (19.0%) | 6,362 (100%) | 10,469 (100%) |
90+
| 204 (65.2%) | 465 (63.1%) | 22 (7.0%) | 39 (5.3%) | 0 | 7 (0.9%) | 45 (14.4%) | 84 (11.4%) | 42 (13.4%) | 142 (19.3%) | 313 (100%) | 737 (100%) |
Total
| 79,088 (57.2%) | 98,071 (58.0%) | 6,641 (4.8%) | 8,258 (4.9%) | 752 (0.5%) | 1,184 (0.7%) | 8,044 (5.8%) | 8,705 (5.1%) | 43,708 (31.6%) | 52,907 (31.3%) | 138,233 (100%) | 169,125 (100%) |
Concomitant LABA and ICS users – fixed combination versus separate inhalers
Year | |||||
---|---|---|---|---|---|
2004 | 2005 | 2006 | 2007 | 2008 | |
Combined inhalers [fixed LABA/ICS]
| 101,814 (82.2%) | 126,347 (82.7%) | 126,301 (82.9%) | 145,464 (84.5%) | 151,784 (85.7%) |
Separate inhalers [non-fixed LABA/ICS]
| 15,044 (12.1%) | 18,490 (12.1%) | 17,767 (11.7%) | 17,930 (10.4%) | 16,750 (9.5%) |
Combinations
| 7,015 (5.7%) | 8,020 (5.2%) | 8,350 (5.5%) | 8,831 (5.1%) | 8,625 (4.9%) |
Combined Inhalers [fixed LABA/ICS) | Separate Inhalers [non-fixed LABA/ICS] | Combinations | All concomitant LABA/ICS categories | |||||
---|---|---|---|---|---|---|---|---|
Age group | Male | Female | Male | Female | Male | Female | Male | Female |
0-9
| 3,262 (76.9%) | 1,735 (75.8%) | 219 (5.2%) | 135 (5.9%) | 761 (17.9%) | 418 (18.3%) | 4,242 (100%) | 2,288 (100%) |
10-19
| 9,121 (88.2%) | 6,208 (87.9%) | 550 (5.3%) | 422 (6.0%) | 676 (6.5%) | 430 (6.1%) | 10,347 (100%) | 7,060 (100%) |
20-29
| 6,052 (90.9%) | 7,208 (89.9%) | 436 (6.5%) | 525 (6.6%) | 172 (2.6%) | 281 (3.5%) | 6,660 (100%) | 8,014 (100%) |
30-39
| 7,053 (88.5%) | 9,034 (87.2%) | 669 (8.4%) | 885 (8.5%) | 250 (3.1%) | 444 (4.3%) | 7,972 (100%) | 10,363 (100%) |
40-49
| 10,015 (87.1%) | 14,110 (86.0%) | 1,102 (9.6%) | 1,515 (9.2%) | 386 (3.4%) | 788 (4.8%) | 11,503 (100%) | 16,413 (100%) |
50-59
| 8,777 (85.1%) | 13,239 (84.8%) | 1,120 (10.9%) | 1,624 (10.4%) | 413 (4.0%) | 748 (4.8%) | 10,310 (100%) | 15,611 (100%) |
60-69
| 10,454 (83.7%) | 14,200 (84.1%) | 1,545 (12.4%) | 1,906 (11.3%) | 489 (3.9%) | 779 (4.6%) | 12,488 (100%) | 16,885 (100%) |
70-79
| 9,428 (83.5%) | 12,121 (84.5%) | 1,368 (12.1%) | 1,594 (11.1%) | 495 (4.4%) | 625 (4.4%) | 11,291 (100%) | 14,340 (100%) |
80-89
| 3,469 (85.2%) | 5,712 (86.1%) | 433 (10.6%) | 650 (9.8%) | 169 (4.2%) | 270 (4.1%) | 4,071 (100%) | 6,632 (100%) |
90+
| 178 (87.3%) | 408 (87.7%) | 17 (8.3%) | 35 (7.5%) | 9 (4.4%) | 22 (4.7%) | 204 (100%) | 465 (100%) |
Total
| 67,809 (85.7%) | 83,975 (85.6%) | 7,459 (9.4%) | 9,291 (9.5%) | 3,820 (4.8%) | 4,805 (4.9%) | 79,088 (100%) | 98,071 (100%) |