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Table 3 Mild, moderate and severe depression compared to No depression according to study year

From: Self-reported depression is increasing among socio-economically disadvantaged adolescents – repeated cross-sectional surveys from Finland from 2000 to 2011

Time period 2000–2001 2002–2003 2004–2005 2006–2007 2008–2009 2010–2011 2000–2011
  OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Boys        
Model 1        
 Mild 1.00 0.90 (0.86-0.95) 0.99 (0.94-1.03) 1.05 (1.01-1.10) 1.05 (1.01-1.10) 0.92 (0.88-0.96) 1.00 (1.00-1.01)
 Moderate 1.00 0.88 (0.84-0.93) 0.96 (0.91-1.01) 1.02 (0.97-1.07) 1.03 (0.98-1.08) 0.87 (0.83-0.92) 1.00 (0.99-1.01)
 Severe 1.00 0.95 (0.87-1.04) 1.00 (0.92-1.09) 1.07 (0.98-1.16) 1.08 (0.99-1.18) 1.04 (0.96-1.14) 1.02 (1.01-1.03)
Model 2        
 Mild 1.00 0.91 (0.87-0.96) 1.00 (0.95-1.04) 1.06 (1.02-1.11) 1.06 (1.02-1.11) 0.93 (0.88-0.97) 1.01 (1.00-1.01)
 Moderate 1.00 0.89 (0.85-0.94) 0.98 (0.93-1.03) 1.04 (0.99-1.09) 1.05 (1.00-1.10) 0.89 (0.84-0.94) 1.00 (0.99-1.01)
 Severe 1.00 0.97 (0.89-1.06) 1.04 (0.95-1.13) 1.10 (1.01-1.20) 1.11 (1.02-1.21) 1.08 (0.99-1.18) 1.03 (1.01-1.04)
 N 47586 50774 53057 54315 54132 51116 310980
Girls        
Model 1        
 Mild 1.00 0.89 (0.86-0.92) 0.93 (0.89-0.96) 0.94 (0.91-0.98) 0.96 (0.92-0.99) 0.93 (0.89-0.96) 1.00 (0.99-1.00)
 Moderate 1.00 0.86 (0.83-0.90) 0.95 (0.91-0.98) 0.98 (0.95-1.02) 0.98 (0.95-1.02) 0.98 (0.95-1.02) 1.01 (1.00-1.02)
 Severe 1.00 0.84 (0.79-0.90) 1.04 (0.97-1.10) 1.02 (0.96-1.08) 1.08 (1.01-1.15) 1.16 (1.09-1.24) 1.04 (1.03-1.06)
Model 2        
 Mild 1.00 0.90 (0.86-0.93) 0.94 (0.90-0.97) 0.95 (0.92-0.99) 0.97 (0.93-1.003) 0.94 (0.90-0.97) 1.00 (0.99-1.00)
 Moderate 1.00 0.88 (0.84-0.91) 0.97 (0.93-1.01) 1.01 (0.97-1.05) 1.007 (0.97-1.05) 1.009 (0.97-1.05) 1.02 (1.01-1.02)
 Severe 1.00 0.86 (0.81-0.92) 1.07 (1.01-1.14) 1.06 (0.99-1.12) 1.12 (1.05-1.19) 1.21 (1.14-1.29) 1.05 (1.04-1.06)
 N 47049 49236 51713 54005 54035 51066 307104
  1. Model 1: time period as factor, no covariates.
  2. Model 2: time period as factor; grade, family structure, unemployment and parents’ education as covariates.
  3. Statistically significant (p < 0.05) are in bold.