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. 2016 Jul 15;4(3):e86. doi: 10.2196/mhealth.5738

Table 2.

Summary descriptive statistics for continuous variables for apps containing the term urology.


Mean SD Range Median
Number of reviews 0.84 2.08 0–12 0
Actual price (€)




All apps 2.55 9.89 0–83.15 0

Paid apps 8.45 16.68 0.68–83.15 2.69
Average user rating (no. of stars) 2.65 2.13 0–5 3.5
App size (MB) 7.37 10.36 0.01–48 3.2
Number of screenshots 5.4 3.86 1–25 4
Length of description (nonspace characters) 896.08 872.24 3–3348 531
App age (days) 721.18 425.76 1–1733 699