Table 5

Rank serial–biserial correlations for known-groups validity of the 12-Item Hypoglycemia Impact Profile

Any episode of any severity in the past weekType 1 diabetesType 2 diabetes
0–1 episode (n=226) vs 2–4 episodes (n=445)0–1 episode (n=226) vs 5+ episodes (n=365)2–4 episodes (n=445) vs 5+ episodes (n=365)0–1 episode (n=132) vs 2–4 episodes (n=46)0–1 episode (n=132) vs 5+ episodes (n=10)2–4 episodes (n=46) vs 5+ episodes (n=10)
Composite0.161***0.274***0.128***0.222**0.182*0.126
Physical health0.0670.183***0.109**0.231**0.167*0.069
Financial situation0.0360.149***0.118***0.0710.1350.139
Relationships0.080*0.149***0.073*0.214**0.0250.117
Leisure activities0.143***0.213***0.073*0.153*0.0390.050
Work or studies0.0500.195***0.153***0.1480.0850.017
Emotional well-being0.117**0.188***0.073*0.250***0.1240.034
Sleep0.181***0.263***0.100**0.194*0.207*0.118
Dietary freedom0.091*0.153***0.0680.1440.1410.096
Sex life0.0630.130**0.0690.0180.1090.140
Independence0.100*0.183***0.086*0.211**0.1090.020
Spontaneity0.128***0.224***0.106**0.184*0.1630.093
Keep fit/be active0.148***0.212***0.071*0.0750.0890.058
Severe hypoglycemia in the past year†0 episode (n=802) vs ≥1 SHE (n=231)0 episode (n=155) vs ≥1 SHE (n=31)
Composite0.158***0.221**
Physical health0.165***0.226**
Financial situation0.182***0.085
Relationships0.183***0.037
Leisure activities0.067*0.205**
Work or studies0.128***0.211*
Emotional well-being0.134***0.265***
Sleep0.122***0.108
Dietary freedom0.066*0.181*
Sex life0.097**0.106
Independence0.161***0.157*
Spontaneity0.0490.093
Keep fit/be active0.076*0.169*
Awareness status‡Intact (n=682) vs IAH (n=347)Intact (n=143) vs IAH (n=43)
Composite0.215***0.002
Physical health0.191***0.047
Financial situation0.133***0.098
Relationships0.163***0.084
Leisure activities0.102**0.022
Work or studies0.099**0.026
Emotional well-being0.131***0.033
Sleep0.160***0.026
Dietary freedom0.143***0.076
Sex life0.127***0.022
Independence0.243***0.029
Spontaneity0.132***0.042
Keep fit/be active0.086**0.012

  • Effect sizes are interpreted as follows: 0.1=small, 0.3=medium, 0.5=large.

  • *P<0.05, **P<0.01, ***P<0.001.

  • †Defined as episodes where they needed help/were unable to treat themselves.

  • ‡Intact awareness was defined as a self-reported Gold score of ≤3 and impaired awareness was defined as a self-reported Gold score of ≥4.

  • IAH, impaired awareness of hypoglycemia; SHE, severe hypoglycemia episode.