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

Table 3

(a) Top 50 text-based predictors of suicidal ideation. (b) Top 50 text-based predictors of heightened psychiatric symptoms (GHQ-12 ≥ 4).

(a)

Probability	Spanish	English
0.35 to <0.4	conté	I told
0.3 to <0.35	monotona, Equasim (Ritalin), acosado, trabajamos	Monotony, Ritalin, harassed, we work
0.25 to <0.3	raza, aseos, resfriado, pronuncio	Race, restrooms, congested (sick), I pronounce
0.2 to <0.25	rechaza, jornada, será, suave, endoscopia, ello, ganas, solo, dedicados, recurrente, morirá, probado, causa, inevitable, raíz, digo	Rejects, work shift, will be, soft, endoscopy, it, desire, alone, dedicated, recurrent, will die, tried, cause, inevitable, root, I say
0.15 to <0.20	lloré, primero, traumatólogo, hilos, alpina, reumatóloga, brazo, rigidez, estallar, cumplen, desapareciendo, agobia, vulnerable, síntomas, ganar, preferiría, culpas, explico, recordando, teoría, adelgazara, gasolina, emocionalmente	I cried, first, trauma surgeon, threads, alpine, rheumatologist, arm, stiffness, explode, they obey, disappearing, overwhelms, vulnerable, symptoms, win, prefer, blame, I explain, remembering, theory, will lose weight, gasoline, emotionally

(b)

Probability	Spanish	English
0.35 to <0.45	recorrer, horarios, comunicar	Wander, schedules, communicate
0.3 to <0.35	iré, parecida, gimnasia, destacando, ido	Will go, similar, gym, highlight, going
0.25 to <0.3	fumada, llevaré, desactivado, crema, gris	Smoked, will bring, disarmed, cream, grey
0.2 to <0.25	hipnotizada, funcionar, manual, futuro, mala, deprimida, recogas, me voy, tardado, esclavo, síntomas, golpe, lado, merienda, primera, inspectora, valoren, suave, entendido	Hypnotized, to function, manual, future, bad, depressed, pick, I’m leaving, I took, slave, symptoms, hit, side, snack, first, inspector, worth, soft, understood
0.15 to <0.20	Cerca, subdirectora, porta, Francia, cumplido, suicidios, bastan, videojuegos, laxante, con, voluntariado, particularmente, empleados, cabeza, contesto, confiaba, realizado	Near, subdirector, port, France, completed, suicides, suffice, video games, laxative, with, volunteered, particularly, employees, head, answer, trust, realized