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Table 4 Percentiles of QOL Physical Well-being 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)
Ethnicity
 Chinese0 0 0 0 0 
 Indian−9.7(−25.1, 5.7)− 9.4(−30.9, 12.1)− 4.2(− 18.9, 10.6)0.0(−8.4, 8.4)1.0(−6.3, 8.4)
 Others14.6*(7.4, 21.7)7.8(1.7, 3.9)6.3*(2.2, 10.3)4.2(0.9, 7.4)2.1(− 0.4, 4.6)
Caregiver role13.2*(8.6, 17.8)10.4*(7.0, 13.8)5.6*(3.0, 8.1)4.2*(2.4, 5.9)1.0(− 0.6, 2.6)
Performance status−4.9*(−7.8, − 1.9)−5.6*(−7.9, − 3.6)−5.6*(−6.8, − 4.3)−4.1*(−5.3, − 3.1)−2.1*(−2.9, 1.3)
Intercept41.7*(30.4, 52.9)62.5*(55.1, 69.9)81.9*(76.6, 87.3)91.7*(87.5, 95.8)97.9*(94.9, 100.9)
  1. *P < 0.01
  2. Example: The 10th percentile of an Indian 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 41.7–9.7 + (0 × 13.2) + (1 × [− 4.9]) = 27.1