. 2019 Jun 7;2(6):e195463. doi: 10.1001/jamanetworkopen.2019.5463

Table 3. Within-Group Differences for Primary Outcome Variables, NSSI, and Suicide Attempts.

Variable	BA Group, Mean (SD) [Median]					Control Group, Mean (SD) [Median]					LGCM With Group as Covariate
	T1	T2	T3	Within-Group Difference^a		T1	T2	T3	Within-Group Difference^a		Estimate (SE) for Slope	P Value
	T1	T2	T3	χ²	P Value	T1	T2	T3	χ²	P Value	Estimate (SE) for Slope	P Value
Total days admitted to hospital^b^,^c	59.95 (49.88) [41.00]^d^,^e	45.45 (50.08) [27.00]^d^,^f	30.14 (44.98) [7.50]^e^,^f	22.71	<.001	51.55 (39.53) [39.00]^d^,^e	40.56 (48.21) [21.00]^d^,^f	29.44 (40.61) [10.00]^e^,^f	23.01	<.001	−4.06 (4.19)	.33
Days with general admission^b	59.95 (49.88) [41.00]^d^,^e	35.86 (45.81) [15.50]^d^,^f	24.04 (44.02) [4.00]^e^,^f	35.38	<.001	51.55 (39.53) [39.00]^d^,^e	40.56 (48.21) [21]^d^,^f	29.44(40.61) [10.00]^e^,^f	23.01	<.001	−6.06 (4.24)	.15
Days with compulsory admission^b	15.43 (29.32) [0]^d^,^e	8.12 (19.46) [0]^d	7.34 (20.35) [0]^e	7.67	.02	9.66 (30.67) [0]	9.80 (34.88) [0]	5.55 (15.71) [0]	3.39	.18	−0.33 (0.31)	.29
Visits to an emergency department^b	4.36 (4.93) [3.00]^e	3.91 (6.24) [1.50]	3.52 (6.48) [1.00]^e	13.95	<.001	6.09 (6.38) [4.00]^d^,^e	4.64 (6.59) [3.00]^d^,^f	2.95 (3.52) [2.00]^e^,^f	21.61	<.001	0.19 (0.12)	.12
NSSI^g	6.84 (7.62) [5.00]^e	4.86 (8.43) [0]	4.41 (6.58) [1.00]^e	6.13	.047	5.44 (8.18) [3.50]	5.15 (7.00) [2.00]	4.44 (6.11) [0.50]	1.07	.59	−0.41 (0.24)	.09
Suicide attempts^g	0.23 (0.68) [0]	0.30 (0.72) [0]^d	0.03 (0.18) [0]^d	6.75	.03	0.40 (0.90) [0]	0.19 (0.75) [0]	0.03 [0] (0.19)	1.00	.61	NA^h	NA^h

Abbreviations: BA, brief admission; LGCM, latent growth curve modeling; NA, not applicable; NSSI, nonsuicidal self-injury; T1, baseline; T2, 6-month follow-up; T3, 12-month follow-up.

^{^a}

Friedman test was used to evaluate the within-group differences.

^{^b}

Measured using the 6-month time period.

^{^c}

Total days admitted to hospital includes days with general admission, compulsory admission, and BA.

^{^d}

Signficant difference found between mean and median from T1 to T2.

^{^e}

Signficant difference found between mean and median from T1 to T3.

^{^f}

Signficant difference found between mean and median from T2 to T3.

^{^g}

Measured for 2 weeks.

^{^h}

Only 20 participants in the BA group and 29 participants in the control groups supplied information on suicide attempts at T1, T2, and T3. The sample was therefore considered too small to perform LGCM.