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Table 2 Comparison of outcomes between the intervention and control group

From: The effects of WeChat-based educational intervention in patients with ankylosing spondylitis: a randomized controlled trail

Variable Intervention group (N = 59)
Mean ± SD
Control group
(N = 59)
Mean ± SD
t/Z P
SF-36 subgroups
 Physical functioning 83.05 ± 16.24 79.41 ± 15.68 1.240 0.217a
 Role physical, M [IQR] 100.00 [50.00] 50.00 [100.00] − 2.429 0.015b
 Bodily pain 65.75 ± 16.85 55.29 ± 17.17 3.340 0.001a
 General health 59.05 ± 17.73 49.95 ± 20.71 2.565 0.012a
 Vitality 70.25 ± 15.04 65.34 ± 18.19 1.600 0.112a
 Social functioning 83.31 ± 18.30 73.54 ± 18.08 2.917 0.004a
 Role emotional 81.36 ± 34.61 61.02 ± 43.84 2.797 0.006a
 Mental health 72.88 ± 13.96 65.97 ± 15.64 2.534 0.013a
BDI-II, M [IQR] 3.00 [5.00] 5.00 [13.00] − 1.980 0.048b
BASFI, M [IQR] 1.00 [1.40] 1.40 [1.60] − 1.764 0.078b
BAS-G 3.28 ± 2.10 3.68 ± 1.94 − 1.060 0.291a
Overall pain 3.05 ± 1.87 3.25 ± 1.92 − 0.583 0.561a
Back pain 3.19 ± 2.16 2.93 ± 2.03 0.658 0.512a
Nocturnal pain 2.83 ± 2.10 2.86 ± 2.18 − 0.086 0.932a
Morning stiffness 2.42 ± 1.93 2.64 ± 1.64 − 0.672 0.503a
  1. SD standard deviation, M median, IQR interquartile range, SF-36 the Short Form 36-item Health Survey, BDI-II Beck Depression Inventory-II, BASFI Bath Ankylosing Spondylitis Functional Index, BAS-G Bath Ankylosing Spondylitis Patient Global Score
  2. aIndependent samples t test
  3. bMann-Whitney U test
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