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Table 1 Descriptive statistics of the image analysis procedure for all observers

From: In vitro validation of Digital Image Analysis Sequence (DIAS) for the assessment of the marginal fit of cement-retained implant-supported experimental crowns

  Observer 1—1st mes Observer 1—2nd mes Observer 2 Observer 3 Observer 4
Valid data 130 130 130 130 130
Shapiro–Wilk P < .001‡a < .001a < .001a < .001a
Median* 132.6838 132.6550 132.1400 131.8350 132.7050
Range* 285.91 285.17 283.72 283.77 286.58
Minimum* 23.27 22.95 24.70 24.60 22.83
Maximum* 309.18 308.11 308.42 308.37 309.41
Mean* 117.1572 117.0547 117.1708 117.3008 117.1818
Std. deviation 63.99465 63.86425 63.62508 63.64398 63.99491
  1. *Units are in pixels
  2. Shapiro–Wilk test of normality (all values are significant a)
  3. Shapiro–Wilk test of observer 1 mean