Table 4.
Longitudinal analysis for FEV1 (%pred) and C1orf100 expression levels in CAMP
Model 1 | Model 2 | |
---|---|---|
| ||
Intercept† | 96.1% (2.9) | 96.2% (2.9) |
C1orf100‡ | −0.36% (0.08)** | −0.44% (0.09)** |
Budesonide§ | 3.63% (1.6)* | 3.23% (1.6)* |
C1orf100*budesonide|| | – – | 0.32% (0.16)* |
Models from adjusted longitudinal analysis for percent-predicted FEV1. Model 1 shows main effects of C1orf100 expression level and treatment with inhaled budesonide. Model 2 also includes the interaction term. Numbers represent β coefficients from mixed-effects regression models with standard errors in parentheses.
P<0.05,
P<0.001.
Children in CAMP with the lowest levels of C1orf100 ~ and no budesonide treatment had FEV1 ~96.2%.
C1orf100 gene expression levels as log-intensity values. There was a drop of ~0.4% in FEV1 for each log increase in C1orf100 level.
Children receiving budesonide had an FEV1 ~3.2–3.6% higher than those not on budesonide.
Children with higher C1orf100 levels had a greater response to budesonide: for each log increase in the level, treatment improved their FEV1 by ~0.3% more than those with lower expression levels of the gene.
In summary, higher expression levels of C1orf100 were associated with lower FEV1; budesonide improved FEV1 and also partially reversed the reduction in FEV1 associated with higher C1orf100 levels.