Table 5.

Independent factors associated with the occurrence of nightmares and pandemic nightmares.

	Model 1 (n = 1,057)		Model 2 (n = 521)
	Having or not nightmares during the pandemic		Having or not nightmares with a pandemic content
	OR value	p-value	OR value	p-value
Suicidal ideation	2.8 (1.7–4.7)	<0.001
Previous psychiatric conditions	2.3 (1.7–3.0)	<0.001	1.6 (1.0–2.4)	0.019
Alcohol during the pandemic
No change	–	0.072
Less consumption	1.3 (0.9–1.9)	0.133
More consumption	1.4 (1.0–2.1)	0.042
Perception of risk of contamination
Low risk	–	0.019
Moderate risk	1.0 (0.7–1.5)	0.746
High risk	1.6 (1.0–2.4)	0.019
Use of sleep medication	1.9 (1.3–2.8)	<0.001	1.6 (1.0–2.7)	0.033
Women	1.9 (1.4–2.8)	<0.001
Age	0.9 (0.9–1.0)	<0.001	0.9 (0.9–1.0)	<0.001
Constant	1.109	0.745	4.192	<0.001

Logistic regression models using Backward stepwise variable selection method. Variables entered on step 1 of both models were: Previous psychiatric conditions, suicide ideation during the pandemic, sleep duration, sleep medication, occupational status, smoking, frequency of alcohol consumption, change in alcohol consumption during the pandemic, following social distance measures, use of facial mask, positive COVID-19 diagnosis, perceived danger of the COVID-19, perceived risk of contracting COVID-19, contact with exposed individuals, isolation from family members, gender, and age.

Model 1 stopped at the 11th step, whereas model 2 at the 15th step.