| Individual Triggers, n (%) | FFNS 110 mcg QD | Placebo | Total |
|---|---|---|---|
| (N=53) | (N=49) | (N=102) | |
| Air Pollution | |||
| Any | 53 (100) | 49 (100) | 102 (100) |
| Outside dust | 45 (85) | 42 (86) | 87 (85) |
| Exhaust (cars, trucks, buses) | 43 (81) | 40 (82) | 83 (87) |
| Smog | 29 (55) | 28 (57) | 57 (56) |
| Fumes and open burning | 33 (62) | 29 (59) | 62 (61) |
| Industrial gases/fumes | 22 (42) | 16 (33) | 38 (37) |
| Weather/Temperature Triggers | |||
| Any | 49 (92) | 46 (94) | 95 (93) |
| Windy days | 9 (17) | 15 (31) | 24 (24) |
| Cold days | 36 (68) | 29 (59) | 65 (64) |
| Damp/rainy days | 29 (55) | 29 (59) | 58 (57) |
| Temperature changes | 29 (55) | 30 (61) | 59 (58) |
| Change in barometric pressure | 11 (21) | 8 (16) | 19 (19) |
| Hot summer days | 12 (23) | 9 (18) | 21 (21) |
| Strong Odor Triggers | |||
| Any | 51 (96) | 44 (90) | 95 (93) |
| Smoke (tobacco/burning items) | 47 (89) | 35 (71) | 82 (80) |
| Perfumes | 16 (30) | 9 (18) | 25 (25) |
| Cosmetics | 9 (17) | 4 (8) | 13 (13) |
| Cleaning products/detergents/soaps | 7 (13) | 13 (27) | 20 (20) |
| Paint fumes or paint products | 30 (57) | 23 (47) | 53 (52) |
| Hairspray | 16 (30) | 17 (35) | 33 (32) |
| Fumes from domestic space heating | 18 (34) | 13 (27) | 31 (30) |