Association between Self-Reported Bruxism and Sleeping Patterns among Dental Students in Saudi Arabia: A Cross-Sectional Study

Table 2

Sleeping habits in male and female bruxers and nonbruxers among dental students in Saudi Arabia.

Sleeping habits		MB	M-NB		value	FB	F-NB		value
How many hours do you sleep every night?	3–6 h	8% (2)	13.2% (5)	0.79	0.85	24.5% (34)	37.8% (120)	19.3	0.001
	6–9 h	48% (12)	42.1% (16)			39.5% (55)	44.2% (140)
	More than 9 h	44% (11)	44.7% (17)			36% (50)	18% (57)
	Total	100% (25)	100% (38)			100% (139)	100% (317)
Do you have a fixed time of going to bed every night?	Yes	20% (5)	22% (9)	0.04	0.55	30.5% (43)	30.3% (98)	0.001	0.24
	No	80% (20)	78% (32)			69.5% (98)	69.7% (225)
	Total	100% (25)	100% (41)			100% (141)	100% (323)
Approximately when do you go to bed every night?	Before 12 o’clock	0% (0)	10% (1)	4.74	0.32	43.1% (22)	36.6% (42)	9.39	0.67
	At 12 o’clock	100% (9)	60% (6)			47.1% (24)	41.7% (48)
	After 12 o’clock	0% (0)	30% (3)			9.8% (5)	21.7% (25)
	Total	100% (9)	100% (10)			100% (51)	100% (115)
How long do you take to fall asleep every night?	30 min or less	47.6% (10)	74.1% (20)	6.81	0.45	48% (60)	58.6% (164)	12.36	0.19
	60 min or more	52.4% (11)	25.9% (7)			52% (65)	41.4% (116)
	Total	100% (21)	100% (27)			100% (125)	100% (280)
How many naps do you take during the day?	No naps	16% (4)	21.9% (9)	2.82	0.59	6.5% (9)	7.6% (24)	5.54	0.24
	One nap	44% (11)	48.8% (20)			68.1% (94)	57.4 (182)
	More than one nap	40% (10)	29.3% (12)			25.4% (35)	35% (111)
	Total	100% (25)	100% (21)			100% (138)	100% (317)
What is the duration of your daytime naps?	1-2 h or less	19% (4)	46.4% (13)	10.39	0.03	37.2% (45)	36.7% (94)	27.3	0.000
	2-3 h	19% (4)	10.7% (3)			5.8% (7)	26.2% (67)
	Total	100% (21)	100% (28)			100% (121)	100% (256)

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