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Table 1 Patient characteristics, illness history, body weight, diagnosis, and comorbidities

From: Eating disorders among patients incarcerated only for repeated shoplifting: a retrospective quasi-case-control study in a medical prison in Japan

 

Shoplifting (S) Group (n = 41)

Drug-offense (D) Group (n = 14)

Control (C) Group (n = 34)

TS

p

Mean (s. d.)

Mean (s. d.)

Mean (s. d.)

Age [years]

37.1a (7.4)

29.9b (6.3)

32.9b (6.7)

F = 6.7

<0.002*

  Range

24–50

23–45

23–48

  

Eating disorder history [years]

15.7 (6.7)

6.7 (5.9)

NA

T = 4.8

<0.001**

  Range

5–31

0–16

-

  

BMI (body mass index) at imprisonment [kg/m2]

13.6a (1.9)

17.6b (3.1)

23.0c (4.4)

F = 77.0

<0.001*

  Range

10.5–19.1

13.0–21.9

17.2–40.3

  

BMI at admission [kg/m2]

11.6 (0.8)

11.5 (0.7)

-

T = 1.6

*0.06**

  Range

9.6–14

10.8–14.3

-

  
 

n (%)

n (%)

n (%)

  

Treatment history for psychiatric disease

29 (71)

5 (36)

24 (71)

4.7

0.10***

  Outpatient

9 (22)

1 (7)

6 (18)

0.74

0.69***

  Hospitalization

20 (49)

4 (29)

18 (53)

1.5

0.47***

  Continued until latest arrest

8 (20)

1 (7)

4 (12)

0.67

0.71***

  1. Significance level: p < 0.05.
  2. Post-hoc analyses for significant differences (χ 2 test: p < 0.05) are indicated by superscript letters “a” and “b.” Groups sharing a letter did not significantly differ.
  3. *Non-repeated–measures analysis of variance (ANOVA). Significant ANOVA results were followed by post-hoc tests with Bonferroni’s correction for multiple analyses. Degree of freedom (df): first df = 2, second df = 86.
  4. **Non-paired t-test: df = 53. Tests were two-tailed.
  5. ***Statistical tests used were the χ 2 test, or Yates exact test for dichotomous variables: df = 2.