Research Article

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

Table 3

Outcome variables across three groups at different timepoints.

Pairwise comparisons between groups
Group 1
Placebo LAT & MAT
(n=50)
Group 2
LAT & placebo MAT
(n=46)
Group 3
Combined AT
(n=51)
Group 1 vs Group 2Group 1 vs Group 3Group 3 vs Group 2
Estimated mean
(SE)
Estimated mean
(SE)
Estimated mean
(SE)
(95% CI) (95% CI) (95% CI)

PSQI (total) (0-21)
Baseline12.68 (0.44)12.90 (0.62)12.34 (0.34)
Post intervention9.46 (0.52)9.91 (0.55)8.48 (0.51)0.23 (-1.44, 1.89)-0.65 (-2.36, 1.06)0.87 (-0.55, 2.30)
6 weeks follow up9.07 (0.53)9.25 (0.65)9.26 (0.54)-0.50 (-2.07, 1.97)0.53 (-1.14, 2.19)-0.58 (-2.54, 1.38)
3 months follow up9.12 (0.79)7.81 (0.68)9.06 (0.58)-1.54 (-4.00, 0.93)0.27 (-1.88, 2.42)-1.81 (-3.99, 0.37)
6-month follow up8.20 (0.62)7.96 (0.67)8.46 (0.66)-0.47 (-2.68, 1.75)0.59 (-1.38, 2.56)-1.06 (-3.16, 1.05)

Sleep latency (minutes)
Baseline26.82 (3.33)29.16 (3.59)25.17 (2.86)
Post intervention25.29 (2.97)25.00 (3.32)26.17 (3.03)(-13.29, 8.02)2.23 (-8.11, 12.57)-4.86 (-15.33, 5.60)
6 weeks follow up19.35 (3.22)26.56 (3.39)23.68 (3.30)4.87 (-7.73, 17.47)5.67 (-5.89, 17.23)-0.80 (-11.77, 10.18)
3 months follow up17.99 (3.37)21.29 (3.56)23.90 (4.22)0.96 (-11.49, 13.41)7.25 (-6.93, 21.43)-6.29 (-20.65, 8.07)
6-month follow up19.66 (5.31)23.42 (5.39)19.07 (4.34)1.43 (-15.79, 18.64)0.76 (-15.34, 16.86)0.67 (-15.85, 17.18)

Total sleep time (hours)
Baseline3.93 (0.27)3.75 (0.28)3.61 (0.30)
Post intervention3.93 (2.49)4.05 (0.30)3.96 (0.29)0.31 (-0.67, 1.28)0.35 (-0.65, 1.36)-0.05 (-1.17, 1.08)
6 weeks follow up3.81 (0.27)3.90 (0.29)3.85 (0.25)0.27 (0.68, 1.23)0.36 (-0.59, 1.31)-0.09 (-1.16, 0.99)
3 months follow up3.66 (0.44)4.26 (0.49)3.38 (0.24)0.77 (-0.81, 2.36)0.034 (-1.32, 1.39)0.74 (-0.61, 2.09)
6-month follow up3.92 (0.49)4.42 (0.61)3.71 (0.45)0.68 (-1.03, 2.38)0.112 (-1.45, 1.68)0.57 (-1.14, 2.27)

Wake after sleep onset (minutes)
Baseline92.32 (12.83)90.51 (14.64)88.33 (10.31)
Post intervention69.44 (10.41)71.60 (9.49)65.84 (8.86)3.97 (-22.03, 29.96)0.38 (-23.41, 24.18)3.58 (-24.42, 31.59)
6 weeks follow up51.45 (5.10)61.40 (8.60)62.34 (7.07)11.76 (-24.44, 47.95)14.88 (-17.49, 47.25)-3.13 (-39.79, 33.54)
3 months follow up50.82 (9.13)74.74 (20.96)63.90 (12.00)25.73 (-38.06, 89.51)17.06 (-30.43, 64.55)8.67 (-55.72, 73.06)
6-month follow up48.81 (9.66)80.87 (26.46)61.59 (11.04)33.87 (-38.57, 106.30)16.77 (-30.71, 64.24)17.10 (-55.55, 89.75)

Sleep efficiency (%)
Baseline72.34 (2.23)74.06 (2.38)70.70 (2.23)
Post intervention78.28 (1.90)76.94 (1.93)78.86 (1.64 )-3.06 (-8.52, 2.40)2.22 (-4.06, 8.50)-5.28 (-11.61, 1.05)
6 weeks follow up77.57 (1.80)76.14 (2.49)74.57 (2.21)-3.14 (-9.31, 3.03)-1.36 (-7.71, 5.00)-1.78 (-8.75, 5.18)
12-week follow up81.32 (1.98)78.02 (3.56)78.82 (2.34)-5.03 (-15.44, 5.39)-0.87 (-10.27, 8.54)-4.16 (-15.43, 7.10)
6-month follow up76.02 (4.84)77.37 (4.64)80.19 (2.20)-0.37 (-14.64, 13.90)5.81 (-6.18, 17.80)-6.18 (-18.97, 6.62)

SF-12 (PCS)
Baseline40.87 (1.09)41.84 (1.37)41.64 (1.19)-
Post intervention44.46 (1.23)43.12 (1.38)42.96 (1.22)2.31 (-6.00, 1.39)-2.27 (-5.69, 1.14)-0.035 (-3.62, 3.55)
6-weeks follow up45.04 (1.34)42.58 (1.44)40.33 (1.51)-3.42 (-7.51, 0.66)-5.47 (-9.89, -1.06)2.05 (-2.06, 6.15)
3 months follow up45.55 (1.34)46.21 (1.42)41.30 (1.66)-0.31 (-4.69, 4.07)-5.02 (-9.53, -0.52)4.72 (0.13, 9.30)
6-month follow up46.26 (1.36)45.96 (1.41)41.99 (2.29)-1.26 (-5.63, 3.11)-5.03 (-10.55, 0.48)3.77 (-2.06, 9.60)

SF-12 (MCS)
Baseline47.99 (1.63)45.77 (1.95)46.05 (1.63)
Post intervention51.84 (1.64)47.35 (1.78)50.58 (.1.37)-2.26 (-7.10, 2.57)0.675 (-4.02, 5.37)-2.94 (-7.42, 1.54)
6 weeks follow up50.97 (1.61)50.89 (1.84)53.15 (1.65)2.14 (-2.62, 6.90)4.12 (-0.95, 9.18)-1.98 (-6.73, 2.77)
3 months follow up48.05 (2.31)51.31 (2.27)50.55 (1.76)5.48 (-1.52, 12.47)4.44 (-1.80, 10.67)1.04 (-5.38, 7.47)
6-month follow up51.64 (2.00)52.24 (2.05)51.05 (2.20)2.82 (-3.83, 9.47)1.35 (-5.24, 7.94)1.47 (-5.41, 8.36)

PHQ-9 (0-27)
Baseline9.52 (0.74)9.48 (0.96)9.40 (0.86)
Post intervention6.30 (0.71)6.77 (0.95)6.46 (0.79)0.504 (-1.52, 2.52)0.28 (-1.78, 2.35)0.22 (-1.72, 2.17)
6 weeks follow up6.87 (1.00)6.49 (1.11)5.00 (0.71)-0.35 (-2.73, 2.04)-1.75 (-4.29, 0.78)1.41 (-0.64, 3.45)
3 months follow up6.58 (1.20)5.68 (1.29)6.55 (1.19)--0.87 (-3.93, 2.21)0.09 (-3.08, 3.26)-0.96 (-4.05, 2.14)
6-month follow up4.77 (0.97)5.82 (1.30)5.68 (1.05)1.10 (-1.88, 4.01)1.04 (-1.87, 3.95)0.06 (-3.07, 3.18)

Estimated mean and standard error (SE) from generalized estimating equations.
PSQI: Pittsburgh sleep quality index.
SF-12 (PCS): physical component score.
SF-12 (MCS): mental component score.
PHQ-9: Patient Health Questionnaire, for depression.
Adjusted for age.
Statistically significant at P< 0.05.