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. 2012 Sep 6;20(1):44–51. doi: 10.1136/amiajnl-2012-000906

Table 3.

Clustering security practices

t Test
Cluster 1 (leaders) (n=97) Cluster 2 (followers) (n=77) Cluster 3 (laggers) (n=30) Clusters 1 and 2 Clusters 1 and 3 Clusters 2 and 3
Security practices Mean SD Mean SD Mean SD Mean differences and their significance
Safeguarding information
 IT sec 0.99 0.10 0.99 0.11 0.93 0.25 0.00 0.06 0.06
 Report breaches 1.00 0.00 0.99 0.11 0.83 0.38 0.01 0.17** 0.16**
 Data access 1.00 0.00 0.91 0.29 0.83 0.38 0.09** 0.17** 0.08
 Who they say they are 0.99 0.10 0.88 0.32 0.73 0.45 0.11** 0.26*** 0.15*
 Access and sharing policies 0.94 0.24 0.92 0.27 0.53 0.51 0.02 0.41*** 0.39***
 Safeguarding mean 0.98 0.09 0.94 0.22 0.77 0.39 0.05 0.21 0.17
Auditing
 IT audit 0.99 0.10 0.96 0.19 0.80 0.41 0.03 0.19** 0.16**
 Audit systems 1.00 0.00 0.91 0.29 0.37 0.49 0.09** 0.63*** 0.54***
 Audit IT logs 0.96 0.20 0.84 0.37 0.40 0.50 0.12** 0.56*** 0.44***
 Audit policies 0.90 0.31 0.77 0.43 0.37 0.49 0.13** 0.53*** 0.4***
 Audit shared data 0.90 0.31 0.77 0.43 0.13 0.35 0.13** 0.77*** 0.64***
 Auditing mean 0.95 0.18 0.85 0.34 0.41 0.45 0.10 0.54 0.44
HR management
 Hiring practices 0.99 0.10 0.96 0.19 0.93 0.25 0.03 0.06 0.03
 HR monitor 0.96 0.20 0.84 0.37 0.73 0.45 0.12** 0.23** 0.11
 Education 0.97 0.17 0.86 0.35 0.50 0.51 0.11** 0.47*** 0.36**
 HR mean 0.97 0.16 0.89 0.30 0.72 0.40 0.09 0.25 0.17
Third-party security management
 Third-party agreement 1.00 0.00 0.96 0.19 0.97 0.18 0.04 0.03 −0.01
 Report third-party breaches 1.00 0.00 0.69 0.47 0.40 0.50 0.31*** 0.60*** 0.29**
 Detect third-party breaches 0.99 0.10 0.61 0.49 0.40 0.50 0.38*** 0.59*** 0.21*
 Third-party training 0.96 0.20 0.32 0.47 0.20 0.41 0.64*** 0.76*** 0.12
 Third-party mean 0.99 0.08 0.65 0.41 0.49 0.40 0.34 0.50 0.15
 Grand mean 0.97 0.13 0.83 0.31 0.59 0.41 0.14 0.37 0.23
Compliance
 Overall compliance (Cronbach's α:0.754) 0.42 0.59 −0.21 0.96 −0.83 0.82 0.63*** 1.25*** 0.62
 HITECH 6.35 1.07 5.38 1.31 4.73 1.60 0.97*** 1.62*** 0.65**
 Red 6.59 0.75 5.74 1.45 5.73 1.23 0.85*** 0.86*** 0.01
 HIPAA 6.77 0.47 6.52 0.79 6.17 0.87 0.25** 0.6*** 0.35
 State 6.71 0.59 6.25 1.00 5.67 1.37 0.46*** 1.04*** 0.58**
 CMS 6.85 0.39 6.53 0.66 6.03 0.89 0.32*** 0.82*** 0.5**
 Compliance mean 6.65 0.65 6.08 1.04 5.67 1.19 0.57 0.99 0.42
Organizational information
 Size 1.67 0.69 1.69 0.75 1.33 0.61 −0.02 0.34** 0.36**
 Critical access 0.29 0.46 0.32 0.47 0.63 0.49 −0.03 −0.34*** −0.31**
 General med 0.60 0.49 0.57 0.50 0.33 0.48 0.03 0.27** 0.24**
 Academic 0.04 0.20 0.05 0.22 0.00 0.00 −0.01 0.04** 0.05**

p Values are represented by *significant at p<0.1, **significant at p<0.05, ***significant at p<0.01. Values in bold represent the average values of each type.

CMS, Centers for Medicare and Medicaid Services; HIPAA, Health Insurance Portability and Accountability Act; HITECH, Health Information Technology for Economic and Clinical Health; HR, human resources; Red, Red Flags rules.