Multinomial logistic regression of factors associated with LRS course at W1, W2 and W3, N=17 316
| LRS course | |||
|---|---|---|---|
| LRS at W1 only vs no LRS | LRS at W1, W2 only vs no LRS Adjusted ORs and 95% CIs* | LRS at W1, W2, W3 vs no LRS Adjusted ORs and 95% CIs* | |
| Factor | Adjusted ORs and 95% CIs* | ||
| Exposure scale | |||
| Low | Ref | Ref | Ref |
| Medium | 1.5 (1.4 to 1.6) | 1.8 (1.6 to 2.1) | 1.7 (1.5 to 2.0) |
| High | 2.3 (2.0 to 2.5) | 2.8 (2.3 to 3.3) | 2.9 (2.5 to 3.4) |
| Very high | 3.7 (3.1 to 4.3) | 5.2 (4.2 to 6.4) | 5.3 (4.3 to 6.5) |
| Probable PTSD at W2 | |||
| No | Ref | Ref | Ref |
| Yes | 1.9 (1.7 to 2.2) | 4.2 (3.6 to 4.9) | 7.6 (6.7 to 8.7) |
| Lacking health insurance | |||
| No | Ref | Ref | Ref |
| Some time since 9/11 but not in past 12 months | 1.1 (0.91 to 1.2) | 0.99 (0.80 to 1.2) | 1.4 (1.1 to 1.6) |
| Lacking in past 12 months | 1.2 (1.0 to 1.5) | 1.3 (1.0 to 1.7) | 1.7 (1.4 to 2.1) |
| Smoking at W3 | |||
| Not at all | Ref | Ref | Ref |
| Some days | 1.2 (1.0 to 1.5) | 1.4 (1.1 to 1.8) | 1.2 (0.96 to 1.6) |
| Every day | 1.2 (0.99 to 1.4) | 1.9 (1.5 to 2.3) | 2.3 (1.9 to 2.8) |
| BMI reported at W3 | |||
| Normal (<25) | Ref | Ref | Ref |
| Overweight (25–29) | 1.2 (1.1 to 1.3) | 1.3 (1.1 to 1.5) | 1.5 (1.3 to 1.7) |
| Obese (≥30) | 1.3 (1.2 to 1.5) | 1.9 (1.6 to 2.2) | 2.4 (2.1 to 2.8) |
*Model: LRS course=age at 9/11, gender, race/ethnicity, BMI, educational level, smoking at W3, method of recruitment at W1, social integration, survey mode at W3, exposure scale, lacking health insurance, probable PTSD at W2. Statistically significant values are bolded.
BMI, body mass index; LRS, lower respiratory symptoms; PTSD, post-traumatic stress disorder; Ref, referent group; W1, Wave 1; W2, Wave 2; W3, Wave 3.