Table 1 Demographics of all participants.

From: Immediate improvement in anxiety and sleep quality with delayed depression response after bariatric surgery in a longitudinal cohort study

Characteristic

HC

M (P25, P75)

OW/OB

M (P25, P75)

Statistic

p

Effect size

Gender (M/F)

14/51

17/61

0 d

0.970

/

Age (years)

27.79 (25.27, 32.90)

29.12 (24.53, 33.39)

2499.50

0.886

0.04

BMI(kg/m2 )

20.98 (19.92, 21.93)

37.93 (34.49, 41.57)

0.00

< 0.001

1.00

Education years (years)

16 (15,18)

15 (12,16)

33.02

0.007

0.32

BAI

2 (0,4)

8 (4,14)

998.00

< 0.001

0.60

BDI

7 (3,13)

11 (6,20)

1689.50

< 0.001

0.33

PSQI

6.15 ± 3.32 a

8.71 ± 3.93 a

−4.14 b

< 0.001

− 0.70c

  1. Statistic is Mann-Whitney U test; Effect Size for Mann-Whitney U test is Rank biserial correlation. PSQI conforms to the normality test, a is mean ± Standard deviation, b Statistic is Student’s t, c Effect size for t test is Cohen’s d; Gender used chi-squared test, d statistic is χ².
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