Table 3.

Adjusted Mean Health-Related Quality of Life Scores By Mode and Order of Administration

Measure	Mail response After telephone (n = 178)	Mail response Before telephone (n = 222)	Telephone response Before mail (n = 225)	Telephone response After mail (n = 177)
SF-36v2™ Physical Health Component Summary Score	40^c	41^b,c	41^a,b	43^a
SF-36v2™ Mental Health Component Summary Score	50^b	51^b	53^a	54^a
SF-6D	0.69^b	0.70^b	0.74^a	0.75^a
QWB-SA	0.59^a,b	0.61^a	0.58^b	0.60^a,b
EQ-5D	0.77^c	0.79^b,c	0.82^a,b	0.85^a
HUI2	0.79^b	0.80^b	0.80^a,b	0.83^a
HUI3	0.67^b	0.68^b	0.73^a	0.78^a

Note. Adjusting for site, patient age (35–44, 45–64, 65 and older), education (1–11^th grade, high school graduate, some college, 4-year college or above), gender and race (white versus non-white). Cells in the same row that share a letter do not differ significantly (p >.05) from one another.

SF-6D = Preference-based score derived from SF-36v2™ items

QWB-SA = Quality of Well-Being Scale—self-administered

HUI2= Health Utilities Index Mark 2

HUI3= Health Utilities Index Mark 3