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Table 2 Methodological characteristics of individual selected studies

From: Total hip arthroplasty versus hemiarthroplasty for displaced femoral neck fractures in the healthy elderly: a meta-analysis and systematic review of randomized trials

Study Type of randomization Allocation concealment Patient blinding Intention to treat Follow-up period (years)
Baker et al. [14] Sealed envelopes NS No NS 3
Blomfeldt et a. [15] Sealed envelopes No No Yes 1
Dorr et al. [29] Hospital number No No NS 4
Keating et al. [25] Computerized No No Yes 2
Macaulay et al. [16, 26] Sealed envelopes NS No Yes 2
Mouzopoulos et al. [17] Order of admission Yes No NS 4
Skinner et al. [28] Day of the week No No NS 1
Van den Bekerom et al. [13] Computerized No No Per protocol 5
  1. NS not specified