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Table 3 Multiple linear regression analysis on WHOQOL-BREF (a) physical, (b) psychological, (c) social, and (d) environmental QOL subdomain

From: Biological rhythms are independently associated with quality of life in bipolar disorder

  Standardized coefficient (β) Standard error Unstandardized coefficients (b) Standard error t value Pearson’s r
(a) Physicala
 MADRS −0.36** 0.11 −0.60 0.19 −3.21 −0.55**
 BRIAN −0.28** 0.11 −0.50 0.19 −2.58 −0.50**
 Sleep Meds −0.33 0.20 −5.88 3.47 −1.69 n/a
(b) Psychologicalb
 MADRS −0.66** 0.09 −1.27 0.17 −7.31 −0.76**
 BRIAN −0.16 0.09 −0.33 0.18 −1.85 −0.54**
 Sleep Meds −0.10 0.16 −2.11 3.2051 −0.66 n/a
(c) Socialc
 MADRS −0.07 0.12 −0.16 0.29 −0.58 −0.36**
 BRIAN −0.43** 0.12 −1.07 0.29 −3.66 −0.49**
 Sleep Meds −0.49** 0.21 −12.41 5.28 −2.35 n/a
(d) Environmentald
 MADRS 0.06 0.13 12.56 25.68 0.49 −0.15
 BRIAN −0.30* 0.13 −62.46 26.42 −2.36 −0.28*
 Sleep Meds −0.56* 0.23 −1154.34 475.27 −2.43 n/a
  1. aAdj. r 2 = 0.3563, f = 15.57, df = 3, 76, p < 0.000
  2. bAdj. r 2 = 0.5829, f = 37.8, df = 3, 76, p < 0.0001
  3. cAdj. r 2 = 0.2703, f = 10.75, df = 3, 76, p < 0.0001
  4. dAdj. r 2 = 0.1171, f = 4.49, df = 3, 76, p < 0.01
  5. * Significant at p < 0.05
  6. ** Significant at Bonferroni-corrected p < 0.0125