TABLE 4.
Pairwise comparisons of estimated marginal means for categorical variables in the multivariable model
| Level 1 | Level 2 | Δβ (±SE) | P |
|---|---|---|---|
| Age | |||
| Age (≤8) | Age (8‐10) | −0.34 (±0.24) | .15 |
| Age (≤8) | Age (10‐12) | 0.13 (±0.25) | .61 |
| Age (≤8) | Age (>12) | 0.47 (±0.29) | .11 |
| Age (8‐10) | Age (10‐12) | 0.47 (±0.22) | .03 |
| Age (8‐10) | Age (>12) | 0.81 (±0.26) | .002 |
| Age (10‐12) | Age (>12) | 0.34 (±0.26) | .19 |
| Body condition score | |||
| BCS (≤3) | BCS (4) | 1.70 (±0.54) | .002 |
| BCS (≤3) | BCS (5) | 1.32 (±0.51) | .01 |
| BCS (≤3) | BCS (6) | 0.90 (±0.52) | .08 |
| BCS (≤3) | BCS (7) | 1.69 (±0.58) | .004 |
| BCS (≤3) | BCS (≥8) | 1.98 (±0.71) | .005 |
| BCS (4) | BCS (5) | −0.38 (±0.25) | .12 |
| BCS (4) | BCS (6) | −0.80 (±0.27) | .003 |
| BCS (4) | BCS (7) | −0.01 (±0.37) | .97 |
| BCS (4) | BCS (≥8) | 0.28 (±0.54) | .61 |
| BCS (5) | BCS (6) | −0.42 (±0.21) | .04 |
| BCS (5) | BCS (7) | 0.37 (±0.33) | .26 |
| BCS (5) | BCS (≥8) | 0.66 (±0.52) | .20 |
| BCS (6) | BCS (7) | 0.79 (±0.34) | .02 |
| BCS (6) | BCS (≥8) | 1.08 (±0.52) | .04 |
| BCS (7) | BCS (≥8) | 0.29 (±0.59) | .62 |
| Murmur intensity | |||
| Murmur (soft) | Murmur (moderate) | −0.94 (±0.33) | .004 |
| Murmur (soft) | Murmur (loud) | −1.82 (±0.33) | <.001 |
| Murmur (soft) | Murmur (thrilling) | −2.31 (±0.39) | <.001 |
| Murmur (moderate) | Murmur (loud) | −0.88 (±0.19) | <.001 |
| Murmur (moderate) | Murmur (thrilling) | −1.37 (±0.29) | <.001 |
| Murmur (loud) | Murmur (thrilling) | −0.49 (±0.28) | .08 |
Notes: Results are presented for the change in coefficients (Δβ = β level 1 − β level 2) and significance of this pairwise comparison. Estimated marginal means were calculated with other variables held constant at the mean of continuous variables and reference group of categorical variables. Pairwise comparisons were performed using Fisher's Least Significant Difference (LSD) test. BCS, body condition score; Δβ, difference in coefficients; P, significance.