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Table 7 Percentiles of QOL Impact on Daily Life score, final model

From: Reference values for and interpretation of the Singapore Caregiver Quality of Life Scale: a quantile regression approach

Predictor10thpercentile25thpercentile50thpercentile75thpercentile90thpercentile
 Coef.(95% CI)Coef.(95% CI)Coef.(95% CI)Coef.(95% CI)Coef.(95% CI)
Caregiver role8.8*(4.6, 13.1)7.1*(2.9, 11.2)3.7*(1.0, 6.4)2.3(0.4, 4.3)1.0(−0.7, 2.1)
Performance status−6.5*(−9.6, − 3.5)−7.1*(−9.6, − 4.5)−4.4*(−5.7, − 3.2)−2.7*(−3.7, − 1.7)−1.8*(−2.6, − 1.0)
Intercept46.2*(36.6, 55.7)67.9*(60.2, 75.7)84.6*(80.3, 88.9)92.7*(89.8, 95.5)98.0*(95.7, 100.2)
  1. *P < 0.01
  2. Example: The 10th percentile of a caregiver who is the only family member (caregiver role = 0) giving care to a patient who has symptoms but is ambulatory (performance status = 1) is 46.2 + (0 × 8.8) + (1 × [− 6.5]) = 39.7