Correspondence of directly reported and recalled health-related quality of life in a large heterogeneous sample of trauma patients

Abstract

Purpose: To evaluate the correspondence of directly reported and recalled health-related quality of life (HRQL) in a heterogeneous sample of trauma patients.

Methods: Adult trauma patients who attended the Emergency Department and were admitted between 03/2016 and 11/2016 were invited to participate. Postal surveys were sent 1 week (T1), 3 months (T2), and 12 months (T3) post-trauma. The EQ-5D-3L and Visual Analogue Scale (EQ-VAS) were used to assess directly reported and recalled HRQL.

Results: The EQ-5D was completed by 446 patients at T1, T2, and T3. Directly reported mean T1 EQ-5D summary score was 0.482, whereas recalled T1 EQ-5D summary score was 0.453 (p < 0.05) at T2 and 0.363 (p < 0.001) at T3. Directly reported mean T2 EQ-5D summary score was 0.737 and mean recalled T2 EQ-5D summary score was 0.713 (p < 0.05) at T3. Directly reported mean T1 EQ-VAS was 56.3, whereas mean recalled T1 EQ-VAS at T2 and T3 was 55.4 (p = 0.304) and 53.3 (p < 0.05), respectively. Directly reported mean T2 EQ-VAS was 72.5 and recalled T2 EQ-VAS at T3 was 68.0 (p < 0.001). The correspondence between all directly reported and recalled HRQL (both EQ-5D summary and EQ-VAS) was fair (ICC = 0.518-0.598). Lowest correspondence was seen in patients with major trauma (injury severity score ≥ 16) and in patients with middle-level education.

Conclusions: Recalled HRQL measured by the EQ-5D-3L and EQ-VAS was systematically lower compared to the directly reported HRQL. Patient characteristics, injury severity, subjectivity of the dimension, and time interval appear to influence correspondence between directly reported and recalled HRQL.

Keywords: EQ-5D; Health-related quality of life; Retrospective assessment; Trauma population.

Fig. 1

Mean and confidence interval EQ-5D summary score assessed 1 week (T1) and recall at 3 months (T2: recall T1) and 12 months (T3: recall T1) post-injury; and mean EQ-5D summary score assessed 3 months (T2) and recall at 12 months (T3: recall T2) post-injury. *Statistically significant (p < 0.05)

Fig. 2

Mean and confidence interval EQ-VAS score assessed 1 week (T1) and recall at 3 months (T2: recall T1) and 12 months (T3: recall T1) post-injury; and mean EQ-VAS score assessed 3 months (T2) and recall at 12 months (T3: recall T2) post-injury. *Statistically significant (p < 0.05)