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Table 4 Percentage (Na) of participants showing remission, incidence, persistent or absent self-injurious behaviour between T1 and T3

From: Persistence and predictors of self-injurious behaviour in autism: a ten-year prospective cohort study

Behaviour

Absent

(Absent 2007, absent 2017)

Remission

(Present 2007, absent 2017)

Incidence

(Absent 2007, present 2017)

Persistent

(Present 2007, present 2017)

P (2-tailed)

Remission in participants with self-injury at T1

Persistence in participants with self-injury at T1

Self-injury

56

(37)

21

(14)

6

(4)

17

(11)

.031*

56

(14)

44

(11)

Hits self with body

76

(50)

11

(7)

6

(4)

8

(5)

.549

58

(7)

42

(5)

Hits self against object

89

(59)

2

(1)

5

(3)

5

(3)

.625

25

(1)

75

(3)

Hits self with object

-

-

-

-

-

-

-

Bites self

82

(54)

12

(8)

2

(1)

5

(3)

.039*

72.7

(8)

27.3

(3)

Pulls self

91

(60)

5

(3)

3

(2)

2

(1)

1.000

75

(3)

25

(1)

Rubs/scratches self

83

(55)

11

(7)

6

(4)

0

(0)

.549

100

(7)

0

(0)

Inserts

-

-

-

-

-

-

-

  1. aMissing data from T1 reduces analysis sample to N = 66
  2. *p < .05