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Table 2 Quality assessment

From: Exacerbations of chronic obstructive pulmonary disease: when are antibiotics indicated? A systematic review

  Description of randomisation procedure Pre- stratification Concealment of random allocation Description of loss to follow-up Blinding of patients Blinding of treatment providers Description of co- interventions Blinding of outcome assessors Intention-to-treat-analysis Adjustment for imbalances
Elmes 1957 [28] 1 0 1 1 1 1 1 1 1 0
Berry 1960 [27] 1 0 1 0 1 1 1 1 1 0
Fear 1962 [29] 1 0 1 1 1 1 0 1 1 0
Petersen 1967 [35] 1 1 0 1 1 0 0 0 0 1
Pines 1968 [37] 1 0 1 1 1 1 0 1 1 0
Pines 1972 [36] 1 0 1 1 1 1 1 1 1 0
Anthonisen 1987 [26] 1 0 0 1 1 1 1 1 1 0
Allegra 1991 [25] 0 0 0 1 1 1 1 1 0 0
Alonso Martinez 1992 [32] 1 0 1 1 1 1 1 0 1 0
Jorgensen 1992 [30] 0 0 0 1 1 1 1 1 1 1
Sachs 1995 [31] 1 0 1 1 1 1 1 0 1 0
Nouira 2001 [34] 1 0 1 1 1 1 1 1 1 0
  1. 0 = not addressed; 1 = partially or fully addressed