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. 2018 Nov 1;6(11):e10190. doi: 10.2196/10190

Table 8.

Promotion periods per year and interactions among new and return users.

Promotion periods and interactions Year Total

2013 2014 2015 2016
Promotional months per year, n 4 10 1 0 15
Percent interactions, n (%)

New users (N=409,768) 43,746 (100) 99,012 (84.88) 32,746 (21.56) N/Aa 175,504 (42.83)

Return users (N=150,915) 4,731 (100) 31,084 (84.27) 6,877 (9.73) N/A 42,692 (28.29)

aN/A=not applicable (No promotional periods during 2016).