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Table 2 Age-sex-adjusted K10 scores at baseline, and average change (and 95% confidence interval) in scores by initial category of distress two-, four-, six- and eight-years following initial assessment, among the Australian population aged 25 years and over

From: Identifying long-term psychological distress from single measures: evidence from a nationally representative longitudinal survey of the Australian population

  Initial category of distress Total
Low Mild Moderate High
Average initial score 10.5 (10.5,10.5) 13.3 (13.2,13.4) 18.1 (17.9,18.3) 27.3 (26.7, 27.9) 15.6 (15.5, 15.7)
Two-year change 1.2 (1.1, 1.3) 0.5 (0.4, 0.7) −0.7 (− 0.9, − 0.5) −4.9 (− 5.4, − 4.4) − 0.2 (− 0.3, 0.1)
Four-year change 1.3 (1.2, 1.5) 0.7 (0.5, 0.8) −0.6 (− 0.8, − 0.3) − 4.7 (− 5.2, − 4.3) − 0.1 (− 0.2, 1.0)
Six-year change 1.3 (1.1, 1.4) 0.6 (0.4, 0.8) −0.6 (− 0.9, − 0.4) − 4.8 (− 5.3, − 4.3) − 0.1 (− 0.2, 0.4)
Eight-year change 1.5 (1.4, 1.7) 0.8 (0.7, 1.0) −0.4 (− 0.6, − 0.1) − 4.6 (− 5.1, − 4.1) 0.2 (0.0, 0.3)
Total change 1.3 (1.2, 1.4) 0.7 (0.5, 0.8) −0.6 (− 0.8, − 0.3) −4.7 (− 5.2, − 4.3) − 0.0 (− 0.1, 0.1)
  1. Two-, four-, six- and eight-year change scores were estimated using linear mixed model with a random intercept, and are adjusted for age group, sex at baseline