Research Article

Novel Use of Natural Language Processing (NLP) to Predict Suicidal Ideation and Psychiatric Symptoms in a Text-Based Mental Health Intervention in Madrid

Table 2

Structured variable predictors of suicidal ideation and average GHQ-12 ≥ 4 (,453).

Suicidal ideation ever (OR, 95% CI) valueGHQ ≥ 4 (OR, 95% Cl) value

Age (cont)1.02 (1.01–1.03)<0.0010.99 (0.98–1.00)0.2
Female1.12 (0.84–1.49)0.4561.02 (0.74–1.40)0.913
Average nightly sleep (hours)1.11 (1.01–1.22)0.0370.98 (0.88–1.09)0.735
Sleep quality (0–100)0.99 (0.99–1.00)0.0940.99 (0.98–1.00)0.029
Anger rarely (0–100)0.97 (0.96–0.98)<0.0010.98 (0.97–0.99)<0.001
Changes in appetite (0–100) 1.00 (1.00–1.00)0.4821.00 (0.99–1.00)0.793
Medication adherence (0–100) 1.00 (1.00–1.00)0.7461.00 (0.96–1.00)0.912
WHO_5 wellbeing scale0.96 (0.95–0.97)<0.0010.94 (0.93–0.95)<0.001

Both models were completed using logistic regression (STATA 14 software).