Associations between current asthma and pre-frailty/frailty
| Asthma definition | N | OR of pre-frailty (95% CI) | N | OR of frailty (95% CI) | |
| Current asthma in 2015 | Crude | 11 639 | 1.36 (1.09 to 1.70) | 8 087 | 2.81 (2.02 to 3.90) |
| M2 | 9 406 | 1.33 (1.03 to 1.72) | 6 561 | 2.47 (1.66 to 3.68) | |
| M3 | 9 303 | 1.26 (0.97 to 1.64) | 6 493 | 2.19 (1.44 to 3.34) | |
| Current asthma in 2002 | Crude | 7 552 | 1.74 (1.54 to 1.96) | 5 262 | 3.21 (2.61 to 3.95) |
| M2 | 6 204 | 1.62 (1.41 to 1.86) | 4 335 | 2.81 (2.20 to 3.59) | |
| M3 | 6 139 | 1.46 (1.26 to 1.68) | 4 293 | 2.24 (1.73 to 2.90) | |
| Constant report of current asthma between 1990 and 2015 | Crude | 6 018 | 1.56 (1.02 to 2.39) | 4 239 | 4.73 (2.65 to 8.43) |
| M2 | 4 971 | 1.55 (0.94 to 2.55) | 3 511 | 3.98 (1.92 to 8.25) | |
| M3 | 4 924 | 1.47 (0.89 to 2.44) | 3 481 | 3.67 (1.70 to 7.93) | |
| At least one report between 1990 and 2005 | Crude | 11 639 | 1.26 (1.10 to 1.43) | 8 087 | 2.19 (1.77 to 2.72) |
| M2 | 9 406 | 1.17 (1.01 to 1.36) | 6 561 | 1.78 (1.37 to 2.31) | |
| M3 | 9 303 | 1.09 (0.93 to 1.27) | 6 493 | 1.50 (1.15 to 1.98) | |
| Confirmed by drugs database | Crude | 11 558 | 1.32 (1.02 to 1.71) | 8 033 | 2.91 (2.01 to 4.22) |
| M2 | 9 343 | 1.26 (0.94 to 1.70) | 6 520 | 2.45 (1.56 to 3.85) | |
| M3 | 9 240 | 1.15 (0.85 to 1.55) | 6 452 | 2.00 (1.24 to 3.22) | |
| Sensibility | Crude | 11 639 | 1.30 (0.92 to 1.84) | 8 087 | 2.95 (1.81 to 4.81) |
| M2 | 9 406 | 1.37 (0.92 to 2.04) | 6 561 | 2.54 (1.38 to 4.67) | |
| M3 | 9 303 | 1.31 (0.87 to 1.97) | 6 493 | 2.37 (1.24 to 4.51) |
Results are expressed as OR (95% CI).
Model 2 (M2): adjusted for sex, age (continuous), body mass index (continuous), education, marital status, tobacco consumption.
Model 3 (M3): further adjustment on diabetes, joint pain, cancer, cardiac diseases and mental status.
Sensibility: participants who constantly reported current asthma, or only once, in 2015, were considered as having current asthma; otherwise they were considered as not having current asthma.