“…In a recent study, Toh et al [33] reported that after adjusting for potential confounders, the number of hours a day spent on smartphones was associated with increased risk of neck/shoulder, upper back, arm, and wrist/hand discomfort. In another study, Hegazy et al [29] reported (using an adjusted multiple logistic regression analysis) that excessive smartphone use was significantly associated with self-reported sleep disturbance, headache, fatigue, depression, nervousness, and musculoskeletal pain. Similarly, in our study, it was observed that high SAS scores, which are an indicator of excessive phone use, were associated with the presence of neck, shoulder, upper back, and wrist/hand pain symptoms.…”