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. 2020 May 25;21:100329. doi: 10.1016/j.invent.2020.100329

Table 2.

Comparisons of change scores from baseline to 2 months between controls and the two experimental groups.

Variables WLC
Face-to-face CBT
Difference with controls in change from baseline, adjusted for baseline value
Blended CBT
Difference with controls in change from baseline, adjusted for baseline value
Mean (95%CI) Mean (95%CI) Mean (95%CI) p-value Mean (95%CI) Mean (95%CI) p-value
STAI
Baseline 54.7 (51.8 to 57.5) 55.2 (52.1 to 58.2) 57.9 (55.3 to 60.4)
2 months 54.2 (51.3 to 57.1) 43.5 (39.4 to 47.7) 42.0 (38.5 to 45.5)
Change −0.5 (−2.9 to 1.9) −11.7 (−16.0 to −7.4) −11.0 (−15.5 to −6.5) <0.001 −15.8 (−19.1 to −12.6) −14.1 (−18.6 to −9.7) <0.001



Anxiety HAD
Baseline 12.6 (11.9 to 13.3) 13.3 (12.5 to 14.2) 14.1 (13.2 to 14.9)
2 months 12.5 (11.4 to 13.5) 9.1 (8.0 to 10.2) 8.6 (7.7 to 9.5)
Change −0.1 (−0.9 to 0.7) −4.1 (−5.1 to −3.1) −3.8 (−5.0 to −2.6) <0.001 −5.4 (−6.4 to −4.4) −4.9 (−6.1 to −3.7) <0.001



Depression HAD
Baseline 5.6 (4.8 to 6.4) 5.9 (5.1 to 6.7) 6.3 (5.5 to 7.0)
2 months 5.9 (4.9 to 6.8) 5.2 (3.9 to 6.5) 3.4 (2.5 to 4.3)
Change 0.3 (−0.6 to 1.2) −0.7 (−1.9 to 0.5) −0.8 (−2.1 to 0.5) 0.41 −2.9 (−3.7 to −2.1) −2.8 (−4.2 to −1.6) <0.001



Score PSS
Baseline 47.0 (44.8 to 49.1) 47.7 (45.7 to 49.7) 47.9 (45.5 to 50.2)
2 months 46.1 (44.2 to 48.1) 39.4 (36.5 to 42.4) 38.2 (35.9 to 40.4)
Change −0.8 (−2.7 to 1.0) −8.3 (−11.0 to −5.5) −7.0 (−10.0 to −4.0) <0.001 −9.7 (−12.2 to −7.2) −8.4 (−11.4 to −5.4) <0.001



Score PSWQ
Baseline 47.0 (44.9 to 49.0) 47.4 (45.5 to 49.4) 48.4 (46.8 to 50.0)
2 months 46.2 (44.5 to 47.9) 43.4 (41.1 to 45.7) 42.3 (40.5 to 44.0)
Change −0.8 (−2.8 to 1.2) −4.0 (−6.2 to −1.9) −3.0 (−5.5 to −0.5) 0.034 −6.1 (−7.9 to −4.4) −4.7 (−7.1 to −2.2) <0.001



Score BDI
Baseline 7.8 (6.4 to 9.1) 8.9 (7.3 to 10.4) 9.4 (7.6 to 11.1)
2 months 7.5 (6.1 to 8.8) 6.1 (4.5 to 7.6) 6.1 (4.6 to 7.6)
Change −0.3 (−1.5 to 0.9) −2.8 (−4.5 to −1.2) −2.0 (−3.7 to −0.4) 0.032 −3.2 (−4.5 to −2.0) −2.3 (−4.0 to −0.6) 0.014



VAS-stress
Baseline 71.7 (66.8 to 76.5) 73.8 (69.0 to 78.6) 75.1 (71.4 to 78.8)
2 months 66.9 (62.1 to 71.7) 38.5 (30.6 to 46.5) 34.9 (28.9 to 40.8)
Change −4.8 (−9.9 to 0.3) −35.2 (−43.1 to −27.4) −29.1 (−37.9 to −20.4) <0.001 −40.3 (−46.7 to −33.8) −34.0 (−42.4 to −25.6) <0.001

Note. 95%CI: 95% Confidence Interval. Values are reported after handling missing values by multiple imputations. Bonferroni correction was applied for all comparisons. STAI: State Trait Anxiety Inventory; Anxiety HAD: Hospital Anxiety Depression scale - Anxiety subscale; Depression HAD: Hospital Anxiety Depression scale – Depression subscale; PSS: Perceived Stress Scale; PSWQ: Pen State Worry Questionnaire; BDI: Beck Depression Inventory; VAS-stress: Visual Analog Scale – stress.