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Table 2 Health-related quality of life of influenza outpatients and inpatients

From: The impact of influenza on the health related quality of life in China: an EQ-5D survey

  n VAS Health utility QALD loss a
  Mean (SD) Median (IQR) Mean
(SD)
Median
(IQR)
Mean
(SD)
Median
(IQR)
Influenza outpatient
 Unweighted 529 68.93 (19.08) 70.00 (60.00, 80.00) 0.6142 (0.2006) 0.6430 (0.5630, 0.7350) 1.62 (1.84) 1.08 (0.46, 2.04)
 Weightedb 529 68.20 (35.98) 66.18 (42.05, 87.34) 0.6087 (0.3518) 0.5678 (0.3333, 0.7532) 1.69 (2.52) 0.94 (0.39, 1.94)
Influenza inpatient
 Unweighted 249 65.94 (20.61) 70.00 (50.00, 80.00) 0.5851 (0.2197) 0.6430 (0.4770, 0.7290) 3.51 (4.25) 2.17 (1.00, 4.45)
 Weightedb 249 64.07 (29.03) 60.83 (43.45, 78.22) 0.5616 (0.2799) 0.5588 (0.3846, 0.6925) 3.63 (5.53) 2.03 (0.80, 3.93)
  1. a QALD: quality-adjusted life days
  2. b Weighted: Previous analysis showed that population structure (by age group and levels of hospitals) of included patients was significantly different from that of other influenza patients from the National ILI Surveillance Network [Additional file 4: Table S1]. Hence we calculated the weighted HRQoL of included patients using the population structure of the National ILI Surveillance Network as a reference