Table 3.

Associations between Pre-surgery Factors and Post-surgery Self-harm/Suicidal Ideation^a (N=2001)

Pre-surgery factorsb	ARR	(95% CI)	P-value
Lifetime history of suicidality (ref=No)c	4.50	(3.06–6.62)	<.001
Past-week self-harm/suicidal ideationd (ref=No)			<0.01
Year 1	6.89	(3.41–13.89)
Year 2	3.55	(1.88–6.70)
Year 3	2.59	(1.27–5.28)
Year 4	2.57	(1.30–5.08)
Year 5	2.01	(1.05–3.87)
Male sex (ref=Female)	1.60	(1.16–2.20)	<0.01
Age, per 10 years younger	1.09	(0.94–1.25)	0.26
Current smoker (ref=No)	1.56	(1.08–2.26)	0.02
Bodily pain score, per 5 SF-36 points lowere	1.14	(1.05–1.24)	0.001
Current antidepressant medication daily (ref=No)	1.55	(1.13–2.13)	0.01
Past-year psychiatric counseling (ref=No)	1.70	(1.21–2.38)	<0.01
Lifetime history of psychiatric hospitalization (ref=No)	1.72	(1.21–2.44)	<0.01
Surgical procedure			0.57
LAGB vs. RYGB	1.12	(0.56–2.24)
Other vs. RYGB	0.86	(0.61–1.21)

Abbreviations: ARR, adjusted relative risk; CI, confidence interval; LAGB, laparoscopic adjustable gastric band; RYGB, Roux-en-Y gastric bypass

^aPast week status assessed at annual assessments with the Beck Depression Inventory-1.

^bSite, age and pre-surgery smoking status, which were related to missing follow-up data, and surgical procedure were forced into the model. Additional pre-surgery factors were considered and retained if significant at P<.05.

^cThere was also an association between unknown vs. no history of suicidality: 3.25 (95% CI=2.11–4.99); p<.001.

^dThere was a significant interaction between baseline self-harm/suicidal ideation and follow-up time point, such that the risk associated with baseline self-harm/suicidal ideation was weaker with increasing time since surgery.

^eLower score indicates greater pain.