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. 2022 Jul 15;18:e174501792206200. doi: 10.2174/17450179-v18-e2206200

Table 2.

Insomnia severity index, mini-z survey, and sheehan disability scale comparisons.

Scale Onset Group, n=211
n (%)
One-Year Group, n=212
n (%)
p-Value Effect Size (95%CI)
Insomnia Severity Index (ISI)
Total ISI score Mean ± SD 8.4 ± 5.8 8.7 ± 6.3 0.655 0.05 (-0.14 – 0.24)
    No clinical Insomnia 0-7 99 (47) 107 (50) 0.179 0.11 (-0.05 – 0.21)
    Subthreshold Insomnia 8-14 81 (38) 66 (31)
    Moderate clinical Insomnia 15-21 28 (13) 30 (14)
    Severe clinical insomnia 22-28 3 (1) 9 (4)
Clinical insomnia (ISI score ≥15) Yes 31 (15) 39 (18) 0.305 0.05 (-0.05 – 0.15)
Mini-Z Survey
Summary score Mean ± SD 32.2 ± 5.6 31.1 ± 5.8 0.061 0.19 (0.0 – 0.38)
     Joyful Workplace Yes (≥40) 18 (9) 12 (6) 0.250 0.06 (-0.04 – 0.15)
  Supportive work environment practice subscale (Q1-Q5) Mean ± SD 16.6 ± 3.2 16.1 ± 3.3 0.087 0.15 (-0.04 – 0.35)
     Highly supportive practice Yes (≥20) 40 (19) 33 (16) 0.356 0.05 (-0.05 – 0.14)
  Work pace and EMR stress subscale (Q6-Q10) Mean ± SD 15.5 ± 3.1 15.0 ± 3.2 0.104 0.16 (-0.03 – 0.35)
     Reasonable work pace and manageable EMR stress Yes (≥20) 21 (10) 18 (9) 0.603 0.03 (-0.07 – 0.12)
Sheehan Disability Scale (SDS)
Total SDS score Mean ± SD 20.9 ± 6.0 22.8 ± 5.3 <0.001 0.34 (0.14 – 0.53)
  Disrupted work Mean ± SD 6.8 ± 2.3 7.4 ± 2.1 0.003 0.27 (0.08 – 0.46)
  Disrupted social life/leisure activities Mean ± SD 7.8 ± 2.1 8.2 ± 1.9 0.047 0.2 (0.01 – 0.39)
  Disrupted family life/home responsibilities Mean ± SD 6.2 ± 2.8 7.1 ± 2.5 <0.001 0.34 (0.15 – 0.53)