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Fig. 1 | BMC Medical Research Methodology

Fig. 1

From: Using observational study data as an external control group for a clinical trial: an empirical comparison of methods to account for longitudinal missing data

Fig. 1

Patterns of missing outcome data in A the ARCTIC trial and B the NOR-VEAC observational study after standardization of follow-up. SJC28, swollen joint count in 28 joints; TJC28, tender joint count in 28 joints; PGA, patient’s global assessment of disease; ESR, erythrocyte sedimentation rate; DAS28, Disease Activity Score in 28 joints

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BMC Medical Research Methodology

ISSN: 1471-2288

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