Multivariable logistic regression model of factors associated with persistent LRS at exam 2 compared with resolved LRS (reference group)
| Characteristic | Model 1: R5 | Model 2: R5-20 | ||
| AOR* | 95% CI | AOR* | 95% CI | |
| Sex (F vs M) | 0.97 | (0.33 to 2.92) | 1.70 | (0.63 to 4.61) |
| Education (<college vs ≥college) | 4.92 | (1.90 to 12.73) | 4.87 | (1.93 to 12.31) |
| PTSD at questionnaire 2 | 2.79 | (1.08 to 7.15) | 2.60 | (1.03 to 6.55) |
| BMI at R1† | 0.97 | (0.89 to 1.06) | 0.98 | (0.90 to 1.08) |
| Exposure to 9/11 dust cloud | 1.27 | (0.47 to 3.47) | 1.26 | (0.48 to 3.38) |
| FEV1 % predicted at Exam1† | 1.00 | (0.97 to 1.04) | 1.00 | (0.97 to 1.03) |
| R5 at exam 1‡ | 1.79 | (1.19 to 2.70) | ||
| R5-20 at exam 1‡ | 2.53 | (1.15 to 5.57) | ||
N with complete data=127.
*Models are adjusted for all factors shown.
†Modelled as a continuous variable in 10-point increments.
‡Modelled as a continuous variable in cm H2O/L/s.
AOR, adjusted odds ratio; BMI, body mass index; FEV1, forced expiratory volume in 1 s; PTSD, post-traumatic stress disorder.