Smartphone addiction in children: patterns of use and musculoskeletal discomfort during the COVID-19 pandemic in Iran

Table 3 Correlation between smartphone addiction and experienced discomfort

Regions	Discomfort level	Addiction levels (n)		Pearson Chi square value	Significance	Contingency Coefficient
Regions	Discomfort level	Addicted	No addicted	Pearson Chi square value	Significance	Contingency Coefficient
Wrist	Yes	62	28	10.34	0.001	0.133
Wrist	No	250	245	10.34	0.001	0.133
Fingers	Yes	50	30	3.12	0.070	0.077
Fingers	No	262	243	3.12	0.070	0.077
Shoulders	Yes	67	24	17.83	< 0.001	0.175
Shoulders	No	245	249	17.83	< 0.001	0.175
Neck	Yes	76	154	29.27	< 0.001	0.112
Neck	No	158	198	29.27	< 0.001	0.112
Upper-Back	Yes	80	28	22.89	< 0.001	0.243
Upper-Back	No	232	245	22.89	< 0.001	0.243
Eyes	Yes	146	86	14.23	< 0.001	0.154
Eyes	No	166	187	14.23	< 0.001	0.154

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