Table 2.

Distribution of study designs and deployment strategies.

Study design and deployment strategy	Values, %
Not deployed	109 (86.5)
Experimental study design	103 (81.7)
Primary dataset used	85 (66.7)
Secondary dataset used	46 (36.5)
Denoising performed	31 (24.6)
Descriptive study design	20 (15.1)
Correlational study design	11 (8.7)
Confidentiality compliance	10 (7.9)
Quasi experimental or causal-comparative study design	9 (7.1)
Software	6 (4.0)
Android	4 (2.4)
IoTa	3 (1.6)
Web	2 (0.8)

^aIoT: Internet of Things.