Research Article

Comparison of Magnetic Auriculotherapy, Laser Auriculotherapy and Their Combination for Treatment of Insomnia in the Elderly: A Double-Blinded Randomised Trial

Table 4

Change in different outcome variables over time for individual groups using generalized estimating equations.

Post-hoc analyses ◈▾
(1) vs (2)(1) vs (3)(1) vs (4)(1) vs (5)
β (95% CI)p-valueβ (95% CI)-valueβ (95% CI)p-valueβ (95% CI)p-value

Group 1
Placebo LAT & MAT
(=50)
PSQI (0-21, total)-3.21 (-4.56, -1.87)0.000-3.61 (-4.83, -2.38)0.000-3.56 (-5.28, -1.83)0.000-4.47 (-5.95. -3.00)0.000
Sleep latency (minutes)-1.53 (-8.97, 5.92)0.688-7.47 (-16.74, 1.81)0.115-8.83 (-17.48, -0.18)0.045-7.16 (-19.08, 4.75)0.239
Total sleep time (hours)-0.01 (-0.59, 0.58)0.989-0.12 (-0.69, 0.45)0.681-0.27 (-1.39, 0.86)0.642-0.01 (-1.12, 1.09)0.985
Wake after sleep onset (minutes)-22.87 (-38.01, -7.74)0.003-40.87 (-63.38, -18.36)0.000-41.49 (-74,47, -8.52)0.014-43.51 (-77.26, -9.76)0.012
Sleep efficiency (%)5.94 (2.12, 9.76)0.0025.22 (1.36, 9.09)0.0088.98 (3.07, 14.90)0.0033.68 (-5.99, 13.35)0.455
SF12 (PCS)3.59 (1.09, 6.09)0.0054.16 (1.06, 7.27)0.0094.68 (1.64, 7.72)0.0035.38 (2.58, 8.19)0.000
SF12 (MCS)3.85 (0.29, 7.41)0.0342.98 (0.61, 6.57)0.1030.06 (-4.76, 4.88)0.9803.65 (-0.83, 8.12)0.110
PHQ-9 (0-27)-3.22 (-4.73, -1.71)0.000-2.65 (-4.63, -0.66)0.009-2.94 (-5.17, -0.71)0.010-4.75 (-6.69, -2.82)0.000

Group 2
LAT & placebo MAT
(n=46)
PSQI (0-21, total)-2.99 (-3.96, -2.02)0.000-3.66 (-5.26, -2.05)0.000-5.09 (-6.85, -3.33)0.000-4.94 (-6.60, -3.28)0.000
Sleep latency (minutes)-4.16 (-11.78, 3.46)0.284-2.59 (-11.15, 5.96)0.552-7.87 (-16.82, 1.08)0.085-5,74 (-18.18, 6.71)0.366
Total sleep time (hours)0.30 (-0.47, 1.08)0.4440.15 (-0.61, 0.92)0.6950.51 (-0.61, 1.62)0.3750.67 (-0.64, 1.97)0.316
Wake after sleep onset (minutes)-18.91 (-40.04, 2.23)0.080-29.11 (-57.49, -0.72)0.044-15.76 (-70.40, 38.88)0.572-9.64 (-74.21, 54.94)0.770
Sleep efficiency (%)2.88 (-1.03, 6.78)0.1482.08 (-2.72, 6.89)0.3963.96 (-4.62, 12.53)0.3663.31 (-7.32, 13.95)0.542
SF12 (PCS)1.28 (-1.44, 4.00)0.3570.74 (-1.91, 3.39)0.5854.37 (1.21, 7.53)0.0074.12 (0.75, 7.49)0.017
SF12 (MCS)1.58 (-1.68, 4.85)0.3415.12 (1.99, 8.25)0.0015.54 (0.48, 10.61)0.0326.47 (1.55, 11.39)0.010
PHQ-9 (0-27)-2.72 (-4.06, -1.38)0.000-2.99 (-4.31, -1.67)0.000-3.80 (-5.92, -1.69)0.000-3.66 (-5.91, -1.41)0.001

Group 3
Combined AT
(n=51)
PSQI (0-21, total)-3.86 (-4.91, -2.82)0.000-3.08 (-4.20, -1.95)0.000-3.28 (-4.57, -2.00)0.000-3.88 (-5.18. 2.58)0.000
Sleep latency (minutes)0.70 (-6.47, 7.88)0.848-1.80 (-8.70, 5.10)0.610-1.58 (-12.82, 9.67)0.784-6.40 (-17.34, 4.54)0.251
Total sleep time (hours)0.35 (-0.46, 1.16)0.3990.24 (-0.52, 1.00)0.535-0.23 (-0.99, 0.52)0.5430.10 (-1.00, 1.21)0.858
Wake after sleep onset (minutes)-22.49 (-40.86, -4.12)0.016-25.98 (-49.25, -2.72)0.029-24.43 (-58.62, 9.76)0.161-26.74 (-60.49, 7.01)0.120
Sleep efficiency (%)8.16 (1.18, 13.14)0.0013.87 (-1.18, 8.91)0.1338.12 (0.80, 15.44)0.0309.49 (2.31, 16,68)0.010
SF12 (PCS)1.32 (-1.01, 3.64)0.268-1.31 (-4.45, 1.82)0.413-0.35 (-3.67, 2.98)0.8390.35 (-4.40, 5.10)0.886
SF12 (MCS)4.52 (1.46, 7.59)0.0047.10 (3.52, 10.67)0.0004.50 (0.55, 8.45)0.0265.00 (0.18, 9.82)0.042
PHQ-9 (0-27)-2.94 (-4.35, -1.53)0.000-4.40 (-5.97, -2.83)0.000-2.85 (-5.10, -0.59)0.013-3.71 (-5.89, -1.54)0.001

SE, standard error; CI, confidence interval.
Timepoints: (1) = baseline, (2) = postintervention, (3) = 6-week follow up, (4) = 3-month follow up, and (5) = 6-month follow-up.
Adjusted for age.
PSQI = Pittsburgh sleep quality index.
SF-12 (PCS): physical component score.
SF-12 (MCS): mental component score.
PHQ-9: Patient Health Questionnaire.
Statistically significant at P< 0.05.
Statistically significant at P<0.01.
Statistically significant at P<0.001.