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Table 2 SF-12v2 item-level characteristics and PCS/MCS scores among adults with hemophilia

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

Items N Missing Mean (SD) Skewness Kurtosis
Statistic Std. error Statistic Std. error
Health in general (GH01) 218 0 2.89 (0.94) 0.28 0.164 −0.22 0.327
Limitation in moderate activities (PF02) 218 0 2.25 (0.68) −0.36 0.164 −0.86 0.327
Limitation in climbing stairs (PF03) 218 0 2.17 (0.78) −0.3 0.164 −1.00 0.327
Accomplished less due to physical health (RP04) 218 0 3.32 (1.27) −0.24 0.164 −0.88 0.327
Limited in health due to physical health (RP05) 218 0 3.25 (1.26) −0.12 0.164 −0.96 0.327
Pain interfered with work (BP08) 218 0 2.91 (1.18) 0.09 0.164 −0.94 0.327
Have a lot of energy (VT10) 218 0 3.09 (1.03) 0.1 0.164 −0.50 0.327
Physical health or emotional problems interfered with social activities (SF12) 218 0 3.57 (1.12) −0.43 0.164 −0.42 0.327
Accomplished less due to emotional problems (RE06) 218 0 3.55 (1.29) −0.46 0.164 −0.95 0.327
Less careful due to emotional problems (RE07) 218 0 3.80 (1.20) −0.63 0.164 −0.62 0.327
Felt calm and peaceful (MH09) 218 0 2.62 (0.98) 0.42 0.164 −0.36 0.327
Felt downhearted and depressed (MH11) 218 0 3.65 (1.10) −0.55 0.164 −0.47 0.327
PCS score 218 0 43.68 (10.20) −0.62 0.164 0.61 0.327
MCS score 218 0 46.48 (10.09) −0.72 0.165 1.23 0.328
  1. Note: Responses to the items on the SF-12v2 were measured using 3-point (PF02 and PF03) or 5-point (GH01, RP04, RP05, RE06, RE07, BP08, MH09, VT10, MH11, SF12) response scales
  2. Note: GH01, BP08, MH09, and VT10 are SF-12v2 items where higher scores indicate poorer health status; all other items are scored such that higher scores indicate better health status