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. 2021 Jun 21;21(2):e210–e220. doi: 10.18295/squmj.2021.21.02.009

Table 2.

Bivariate analysis of factors associated with new-onset insomnia among hospitalised patients without a prior history of insomnia at a tertiary care centre in Lebanon (N = 75)

Variable Hospitalised patients, n (%) P value
Without new-onset insomnia (n = 9) With new-onset insomnia* (n = 66)
Mean age in years ± SD 51.00 ± 17.03 52.56 ± 18.70 0.769
Mean BMI in kg/m2 ± SD 27.45 ± 5.45 28.25 ± 4.88 0.068
Mean hospital stay ± SD
Assumed hospital stay in days 6.00 ± 7.26 5.94 ± 2.91 0.234
Actual hospital stay in days 4.44 ± 5.57 3.99 ± 2.50 0.514
Mean number of awakenings per night ± SD 0.78 ± 1.09 3.85 ± 2.80 <0.001
Gender >0.999
Male 3 (10.7) 25 (89.3)
Female 6 (12.8) 41 (87.2)
Insurance 0.407
No 1 (25) 3 (75)
Yes 8 (11.3) 63 (88.7)
Monthly salary in USD 0.423
None 5 (20.8) 19 (79.2)
<1,000 1 (4.5) 21 (95.5)
1,000–2,000 3 (11.5) 23 (88.5)
>2,000 0 (0) 3 (100)
Education level 0.259
Illiterate/primary 2 (40) 3 (60)
Elementary 0 (0) 7 (100)
Secondary 2 (10.5) 17 (89.5)
University 5 (11.4) 39 (88.6)
Hospital ward 0.167
Surgery 0 (0) 12 (100)
Cardiology 3 (33.3) 6 (66.7)
Internal medicine 2 (13.3) 13 (86.7)
First-class 3 (25) 9 (75)
ICU 0 (0) 2 (100)
Gynaecology/obstetrics 1 (5.3) 18 (94.7)
Haematology/oncology 0 (0) 6 (100)
Type of hospital room 0.011
Single-bed 7 (25.0) 21 (75.0)
Shared 2 (4.3) 45 (95.7)
Self-reported nocturnal toilet use 0.407
No 8 (11.3) 63 (88.7)
Yes 1 (25) 3 (75)
Night oxygen use >0.999
No 8 (12.1) 58 (87.9)
Yes 1 (11.1) 8 (88.9)
Cardiac monitoring >0.999
No 9 (12.3) 64 (87.7)
Yes 0 (0) 2 (100)
In-hospital sedative use >0.999
No 9 (12.7) 62 (87.3)
Yes 0 (0) 4 (100)

SD = standard deviation; BMI = body mass index; USD = United States dollars; ICU = intensive care unit.

*

Assessed using an Arabic version of the 7-item Insomnia Severity Index.19,20 Scores of >7 were considered indicative of new-onset insomnia.19

Statistically significant at P <0.050.