Table 1.

Descriptive statistics of tweet categories, United States, 2016–2018 (1096 days).

Predicted category	M	Model recall	Adjusted meana		SD	Min	Max
Awareness	15.37	0.70		21.96	7.56	2.09	72.85
Prevention	13.76	0.89		15.46	9.39	0.58	80.1
Coping	0.83	0.69		1.2	1.73	0.06	30.07
Suicidal ideation/attempts without coping	2.39	0.45		5.31	2.06	0.16	51.05
Suicide cases	12.31	0.77		15.99	9.1	0.73	79.41
Other/irrelevantb	55.35	–		40.08	12.59	4.39	93.38

SD: standard deviation.

^aThe mean proportion per category on any given day in the observation period divided by the model’s recall (i.e. the proportion of true cases the model detects in each category).

^bThe percentage for this category was calculated by subtracting all other adjusted mean percentages from 100.