Skip to main content

Table 6 Known-groups validity for the SF-12v2 components among adults with hemophilia

From: An evaluation of the psychometric properties of the sf-12v2 health survey among adults with hemophilia

Component Group 1 No symptoms (N = 31) Group 2 Mild Symptoms (N = 67) Group 3 Moderate Symptoms (N = 61) Group 4 Severe Symptoms (N = 39)  
Mean (SD) Mean (SD) Mean (SD) Mean (SD) p-value
Physical Component Summary Score (PCS) 50.10 (7.92)ˠ 47.39 (8.25)* 40.79 (8.59)ˠ*¥ 35.24 (10.78)ˠ*¥ < 0.0001
Mental Component Summary Score (MCS) 50.61 (8.23) 46.80 (9.53) 46.96 (9.27) 42.29 (12.28) 0.007
  1. ˠSignificant difference in mean PCS scores between group 1 as compared to group 3 and group 4 (p < 0.05) based on Tukey’s HSD (Honestly Significant Difference) test
  2. *Significant difference in PCS scores between group 2 as compared to group 3 and group (p < 0.05) based on Tukey’s HSD test
  3. ¥Significant difference in PCS scores between group 3 and group 4 (p < 0.05) based on Tukey’s HSD test
  4. Significant difference in mean MCS scores between group 1 and group 4 (p < 0.05) based on Tukey’s HSD test
  5. Symptom severity categories are based on responses to the PGI-S
  6. Note: SD, standard deviation p-values are based on a one-way analysis of variance