TABLE 3.
TAI binary (0–49 versus 50) | TAI binary (0–45 versus 46–50) | |||||||
---|---|---|---|---|---|---|---|---|
Total study population (N = 396) | COPD (+/-asthma) | Asthma (N = 202) | Total study population (N = 396) | |||||
(N = 194) | ||||||||
OR (95% CI) | % Attenuation | OR (95% CI) | % Attenuation | OR (95% CI) | % Attenuation | OR (95% CI) | % Attenuation | |
Baseline model 1 | 1.005 (0.988–1.022) | NA | 1.010 (0.989–1.032) | NA | 0.994 (0.967–1.021) | NA | 1.001 (0.981–1.020) | NA |
Plus covariates a | 1.004 (0.987–1.021) | −0.1% c | 1.008 (0.985–1.031) | −0.2% c | 0.993 (0.966–1.021) | −0.1% c | 1.000 (9.979–1.021) | −0.1% c |
Plus autonomy | 1.004 (0.984–1.024) | 0.0% d | 1.009 (0.979–1.039) | 0.1% d | 0.995 (0.967–1.025) | 0.2% d | 0.998 (0.974–1.023) | −0.2% d |
Plus competence | 1.001 (0.983–1.019) | −0.3% e | 1.007 (0.983–1.031) | −0.2% e | 0.990 (0.962–1.018) | −0.5% e | 0.993 (0.971–1.016) | −0.5% e |
Plus relatedness | 1.003 (0.985–1.021) | −0.1% f | 1.003 (0.980–1.027) | −0.4% f | 1.011 (0.968–1.029) | 2.1% f | 0.998 (975–1.020) | 0.2% d |
Fully adjusted model b | 1.002 (0.982–1.023) | −0.2% g | 1.008 (0.978–1.038) | −0.5% g | 0.997 (0.966–1.029) | −1.4% g | 0.994 (0.969–1.020) | −0.6% g |
age, sex, illness perception, social support, socio-economic status.
bbaseline model with all covariates, autonomy, competence and relatedness.
Percent attenuation= (βmodel 1 + covariates–βmodel 1)/(βmodel 1) × 100.
Percent attenuation= (βmodel 1 + covariates + autonomy–βmodel 1+ covariates)/(βmodel 1+ covariates) × 100.
Percent attenuation= (βmodel 1 + covariates + competence–βmodel 1+ covariates)/(βmodel 1+ covariates) × 100.
Percent attenuation= (βmodel 1 + covariates + relatedness–βmodel 1+ covariates)/(βmodel 1+ covariates) × 100.
Percent attenuation= (βfully adjusted–βmodel 1+ covariates)/(βmodel 1+ covariates) × 100.