Table 1

Missing values of resource utilization
T0 T1 T2
N Max % missings N Max % missings N Max % missings
Hospital fee data for DRG calculation of index treatment 531 21.09 - - - -
Other hospital related variables 531 0.19 484 0.41 284 0
Rehabilitation related variables - - 484 0.21 284 0
Outpatient physician visits 531 0 484 0.41 284 0.70
Outpatient non-physician visits 531 0.19 484 0.62 284 1.06
Number of drug units consumed 1,455a 2.27 635a 9.61 588a 6.97
Medical goods consumed 531 0 484 0 284 1.06
Informal care related variables 531 0.75 484 2.69 284 0.35
Transports related variables 531 0.56 484 2.48 284 1.76
Loss of productivity related variables 427b 2.34 357b 2.80 203b 2.46

a number and percentage refer to the overall number of drug labels reported; b percentage refers to the number of employed.

Konnopka et al.

Konnopka et al. BMC Musculoskeletal Disorders 2012 13:165   doi:10.1186/1471-2474-13-165

Open Data