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Table 1 Characteristics and main outcome variables of n = 100 participants

From: The relationship between smartphone usage duration (using smartphone’s ability to monitor screen time) with hand-grip and pinch-grip strength among young people: an observational study

Variable value
Age (years) 21 (19–23)
Height (m) 1.67 ± 0.1
Weight (kg) 76.9 ± 16.7
BMI (kg/m2) 27.4 ± 4.8
Outcome variables
 Hand-grip strength (kg) 34 ± 7.8
 Pinch-grip strength (kg) 6.7 (6–8.3)
 Smartphone usage duration (h) 7.8 ± 2.2
  1. Values are presented as means ± standard deviation, or median (25th to 75th percentile values) as appropriate. BMI, body mass index