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Table 2 Pairwise comparison of mean HADS-D for each combination of symptoms

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

Pairwise comparisonMean difference95% CIp-value *
OnsetMaintenance0.5[0.1 to 1]0.009
Terminal− 0.2[− 0.8 to 0.4]1.000
Onset + Maintenance−0.6[−1.2 to − 0.1]0.007
Maintenance + Terminal− 0.3[− 0.9 to 0.2]1.000
Onset + Terminal− 1.1[− 2.1 to − 0.1]0.030
Onset + Maintenance + Terminal− 1.3[− 1.8 to − 0.8]< 0.001
MaintenanceTerminal− 0.7[− 1.2 to − 0.2]0.001
Onset + Maintenance− 1.2[− 1.7 to − 0.7]< 0.001
Maintenance + Terminal− 0.9[− 1.4 to − 0.4]< 0.001
Onset + Terminal− 1.6[− 2.6 to − 0.6]< 0.001
Onset + Maintenance + Terminal− 1.8[− 2.2 to − 1.3]< 0.001
TerminalOnset + Maintenance− 0.5[− 1.1 to 0.2]0.469
Maintenance + Terminal− 0.2[− 0.8 to 0.4]1.000
Onset + Terminal− 0.9[− 2 to 0.2]0.228
Onset + Maintenance + Terminal− 1.1[− 1.7 to − 0.5]< 0.001
Onset + MaintenanceMaintenance + Terminal0.3[− 0.3 to 0.9]1.000
Onset + Terminal−0.4[− 1.5 to 0.6]1.000
Onset + Maintenance + Terminal− 0.6[− 1.2 to − 0.1]0.018
Maintenance + TerminalOnset + Terminal−0.7[− 1.8 to 0.3]0.718
Onset + Maintenance + Terminal− 0.9[− 1.5 to − 0.4]< 0.001
Onset + TerminalOnset + Maintenance + Terminal−0.2[− 1.2 to 0.9]1.000
  1. *Bonferroni corrected for 21 comparisons
  2. N.B.: Differences in mean values can be considered as effect measure for the pairwise comparisons (Baguley, 2009)