Prevalence of Problematic Smartphone Use and Its Association with Socio-economic, Physical, and Psychological Conditions: A Cross- Sectional Study among University Students in Bangladesh
This cross-sectional study of 450 university students in Bangladesh reveals a 54% prevalence of problematic smartphone use, which is significantly associated with male gender, senior academic standing, suboptimal sleep, sedentary behavior, low physical activity, and psychological distress, while highlighting methodological improvements through item correction and transparent reliability reporting.
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In the modern world, the smartphone has become an extension of the hand, a tool for learning, a window to friends, and a source of endless entertainment. Yet, for some, this constant connection tips into a pattern of use that feels out of control, interfering with daily life and causing distress. Researchers call this "problematic smartphone use." It is not necessarily a formal medical addiction like those involving substances, but rather a sign that a person is engaging with their device excessively and struggling to stop, often as a way to cope with stress, boredom, or negative feelings. Scientists have long suspected that this behavior does not happen in a vacuum; it is likely tangled up with how people sleep, how much they move their bodies, and their mental well-being. Understanding these connections is crucial, especially for university students, a group that relies heavily on phones for their studies and social lives while navigating high levels of academic pressure.
A team of researchers at Noakhali Science and Technology University in Bangladesh set out to untangle these threads among their student body. They surveyed 450 undergraduate and master's students, asking detailed questions about their phone habits, their daily routines, and their emotional states. The study began with a significant hurdle: during the data collection process, a technical error caused three of the survey questions about phone use to be duplicates of three others. If left uncorrected, this mistake would have artificially inflated the scores, making students appear more addicted than they actually were. The researchers caught this error, removed the duplicate questions, and recalculated the results to ensure accuracy. This correction was vital, as it lowered the estimated rate of problematic use from a misleading 63.8 percent down to a more realistic 54.0 percent. Even with this correction, the finding remains striking: more than half of the students in this sample showed signs of problematic smartphone use.
The study revealed that this behavior is not evenly distributed across the student population. Gender played a major role, with male students showing a much higher likelihood of problematic use compared to their female counterparts. Academic standing also mattered; students in their senior years or pursuing master's degrees were more likely to struggle with phone control than those in their first or second years. The researchers also looked at the students' lifestyles and found a clear, non-linear relationship with sleep. Students who slept between seven and eight hours a night had the lowest rates of problematic use. However, those who slept significantly less than this, as well as those who slept significantly more, faced much higher odds of struggling with their phones. This suggests that both sleep deprivation and oversleeping are linked to the issue, rather than just one extreme being the problem.
Physical activity and mental health emerged as powerful factors as well. The more frequently students exercised, the less likely they were to have problematic phone habits. Conversely, spending long hours sitting still was associated with higher rates of the behavior. Perhaps most strongly, the study found a tight link between psychological distress and phone use. Students who reported feeling nervous, anxious, or down more often were significantly more likely to exhibit signs of problematic use. The researchers suggest this relationship is likely a two-way street: distress may drive students to pick up their phones as a way to escape or cope, while the excessive use of the device may, in turn, worsen their stress and disrupt their sleep, creating a difficult cycle.
Despite these strong associations, the researchers are careful not to claim they have proven that one thing causes the other. Because the study was a snapshot in time rather than a long-term observation, it cannot definitively say whether poor sleep causes phone addiction or if phone addiction causes poor sleep. Furthermore, the study had some limitations, including the fact that the survey questions used to measure distress and phone use showed lower reliability than ideal in this specific group, and the data came from a single university using a method that does not perfectly represent all students in the country. Nevertheless, the findings offer a clear picture of the landscape: problematic smartphone use is common among these students and is deeply intertwined with how they sleep, how active they are, and how they feel emotionally. The results suggest that helping students manage these areas—by promoting better sleep habits, encouraging physical activity, and providing mental health support—could be effective ways to address the issue, rather than simply focusing on the phones themselves.
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