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Table 1 Distribution of age and gender in the whole cohort and different time periods

From: First-year follow-up of children with chronic nonbacterial osteomyelitis—an analysis of the German National Pediatric Rheumatologic Database from 2009 to 2018

  Total cohort A (2009–2012) B (2013–2015) C (2016–2018)
Gender (female) 62.8% 102 (67.6%) 158 (60.1%) 226 (62.8%)
Median age (years) 11.0 12.0 11.0 11.0