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. 2007 Feb;13(1):45–50. doi: 10.1136/ip.2005.010157

Table 2 Baseline summary statistics and tests of difference for health‐related quality of life, health status and severity of injury for recovery groups (n = 186).

Self‐reported measures Not recovered (n = 125) Completely recovered (n = 61) Mann–Whitney U test
Mean SD Mean SD z p Value
AQoL 0.92 0.13 0.95 0.12 −1.832 0.067
SF‐6D 0.90 0.11 0.94 0.08 −2.911 0.004
SF‐36 PCS 54.72 7.11 56.34 5.11 −1.903 0.057
SF‐36 MCS 54.36 6.51 55.84 6.34 −1.613 0.107
Injury severity
 ICISS 0.89 0.13 0.95 0.08 −5.095 0.000
 NISS 10.02 7.14 5.38 4.30 −4.014 0.000

AQoL, assessment of quality of life; ICISS, International Classification of Diseases Injury Severity Score; MCS, mental component summary; NISS, New Injury Severity Score; PCS, physical component summary; SF‐36, 36‐item Short Form Questionnaire; SF‐6D, Short Form 6 Dimensions.