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Table 6 Frequency of changes in position and symptom prevalence, by device type

From: Musculoskeletal symptoms among adult smartphone and tablet device users: a retrospective study

Frequency of change in position Smartphone user symptom prevalence (of n) Tablet user symptom prevalence (of n)
Every 5 mins 47.7% (of 65) 37.5% (of 8)
Every 10 mins 51.9% (of 53) 41.2% (of 17)
Every 15 mins 63.2% (of 38) 50% (of 18)
Every 20 mins 64% (of 25) 60% (of 10)
Every 30 mins 81.8% (of 11) 50% (of 10)
Every 30–60 min 71.4% (of 7) 73.3% (of 15)
Hourly or longer 50% (of 6) 50% (of 2)
Don’t change 54.5% (of 11) 20% (of 5)
  1. Note: n refers to the number of participants who changed position with the specified timeframe when using the specified device