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. Author manuscript; available in PMC: 2024 Mar 11.
Published in final edited form as: Behav Res Ther. 2021 Aug 18;145:103948. doi: 10.1016/j.brat.2021.103948

Table 4.

Planned Pairwise Comparisons for Adjusted Means Following Significant ANCOVAs

 Measures t-statistic p value
Primary Measures
SDS
2 vs. 1 t(41) = 3.23 0.01
3 vs. 1 t(51) = 3.99 0.001
4 vs. 1 t(38) = 3.84 0.002
5 vs. 1 t(26) = 4.85 < 0.001
3 vs. 2 t(62) = 1.47 0.58
4 vs. 2 t(49) = 1.58 0.51
5 vs. 2 t(37) = 3.05 0.02
4 vs. 3 t(59) = 0.32 0.98
5 vs. 3 t(47) = 2.13 0.22
5 vs. 4 t(34) = 1.77 0.40
DSM5
2 vs. 1 t(41) = −0.20 0.99
3 vs. 1 t(52) = 0.97 0.87
4 vs. 1 t(38) = 2.15 0.21
5 vs. 1 t(26) = 1.53 0.55
3 vs. 2 t(63) = 1.69 0.44
4 vs. 2 t(49) = 1.69 0.01
5 vs. 2 t(37) = 2.18 0.20
4 vs. 3 t(60) = 2.05 0.25
5 vs. 3 t(48) = 1.02 0.85
5 vs. 4 t(34) = −0.57 0.98
PROMIS-SRI
2 vs. 1 t(41) = 2.48 0.10
3 vs. 1 t(52) = 3.44 0.007
4 vs. 1 t(38) = 3.66 0.004
5 vs. 1 t(26) = 4.27 <0.001
3 vs. 2 t(63) = 1.69 0.45
4 vs. 2 t(49) = 2.21 0.18
5 vs. 2 t(37) = 3.05 0.02
4 vs. 3 t(60) = 0.84 0.92
5 vs. 3 t(48) = 1.97 0.29
5 vs. 4 t(34) = 1.23 0.74
Sleep/Wake Variables
Sleep Health Composite
2 vs. 1 t(41) = −3.33 0.010
3 vs. 1 t(52) = −3.76 0.003
4 vs. 1 t(38) = −3.91 0.001
5 vs. 1 t(26) = −4.38 < 0.001
3 vs. 2 t(51) = −1.00 0.86
4 vs. 2 t(49) = −1.55 0.53
5 vs. 2 t(37) = −2.35 0.14
4 vs. 3 t(60) = −0.77 0.94
5 vs. 3 t(48) = −1.75 0.41
5 vs. 4 t(34) = −1.08 0.82

Note. The number of problems and diagnostic threshold compared via planned pairwise t-tests is displayed in the format: x vs. y (e.g., 2 vs. 1 = 2 problems compared with 1 prolem; full vs. sub = full diagnoses only compared with subdiagnostic symptoms only). Significant p-values are bolded. Tukey-Kramer’s correction was used to account for unbalanced data. Full = participants with full diagnoses only. Full-sub = participants with full diagnoses and other subdiagnostic symptoms. Sub = participants with subdiagnostic symptoms only. SDS = Sheehan Disability Scale. DSM5 = DSM-5 Cross-Cutting Measure. PROMIS-SD = Patient-Reported Outcomes Measurement Information System–Sleep Disturbance. PROMIS-SRI = Patient-Reported Outcomes Measurement Information System– Sleep-Related Impairment. TST = total sleep time.