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Table 3 Pairwise comparison for mean HADS-D scores among pattern of symptoms with sex and age as covariates

From: Epidemiological differences in levels of depressive signs among nocturnal symptoms of insomnia; results from the HUNT study

Pairwise comparisonsDifference in HADS-D mean95% CIp-value *
OnsetMaintenance0.7[0.2 to 1.1]0.001
Terminal0.2[−0.4 to 0.8]1.000
Onset + Maintenance−0.6[− 1.3 to 0.0]0.108
Maintenance + Terminal−0.1[− 0.8 to 0.5]1.000
Onset + Terminal− 1.7[−3 to − 0.5]0.001
Onset + Maintenance + Terminal− 1.3[− 1.9 to − 0.7]< 0.001
MaintenanceTerminal− 0.5[− 1.0 to 0.0]0.100
Onset + Maintenance− 1.3[− 1.9 to − 0.7]< 0.001
Maintenance + Terminal− 0.8[− 1.3 to − 0.3]< 0.001
Onset + Terminal−2.4[− 3.6 to − 1.1]< 0.001
Onset + Maintenance + Terminal− 1.9[− 2.5 to − 1.4]< 0.001
TerminalOnset + Maintenance− 0.8[− 1.5 to − 0.9]0.015
Maintenance + Terminal− 0.3[− 0.9 to 0.3]1.000
Onset + Terminal− 1.9[− 3.2 to − 0.6]< 0.001
Onset + Maintenance + Terminal− 1.4[− 2.1 to − 0.8]< 0.001
Onset + MaintenanceMaintenance + Terminal0.5[− 0.2 to 1.2]0.731
Onset + Terminal− 1.1[− 2.4 to 0.2]0.191
Onset + Maintenance + Terminal− 0.6[− 1.4 to 0.1]0.112
Maintenance + TerminalOnset + Terminal− 1.6[− 2.9 to − 0.3]0.003
Onset + Maintenance + Terminal− 1.1[− 1.8 to − 0.5]< 0.001
Onset + TerminalOnset + Maintenance + Terminal0.5[− 0.8 to 1.8]1.000
  1. *Bonferroni corrected for 21 comparisons
  2. N.B.: Differences in mean values can be considered as effect measure for the pairwise comparison (Baguley, 2009)