Table 5. Severity of neck pain and associated symptoms (N = 413).

Variable	Category	Frequency	Percentage
Severity of Neck Pain	No Pain	95	23.0
	Mild	261	63.2
	Severe	37	9.0
	Very Severe	19	4.6
	Intolerable	1	0.2
Headaches with Smartphone Use	No Headache	110	26.6
	Little	159	38.5
	Moderate	101	24.5
	Severe	37	9.0
	Very Severe	6	1.5
Stiff Neck Frequency	Never	95	23.0
	Rarely	96	23.2
	Occasionally	133	32.2
	Frequently	66	16.0
	Always	23	5.6
Upper Back Pain Frequency	Never	130	31.5
	Rarely	77	18.6
	Occasionally	116	28.1
	Frequently	67	16.2
	Always	23	5.6