Table 2

The Health and Activity Limitation Index (HALex)


Perceived health status





Excellent
 Very good
 Good
 Fair
 Poor
 Dead



Activity limitation
 Single attribute score
 1.00
 0.85
 0.70
 0.30
 0.00
Not limited
 1.00
 1.00
 0.92
 0.84
 0.63
 0.47
Limited in performing other activities
 0.75
 0.87
 0.79
 0.72
 0.52
 0.38
Limited in performing major acitivities
 0.65
 0.81
 0.74
 0.67
 0.48
 0.34
Unable to perform major activity
 0.40
 0.68
 0.62
 0.55
 0.38
 0.25
Limited in instrumental activities of daily living (IADL)
 0.20
 0.57
 0.51
 0.45
 0.29
 0.17
Limited in activities of daily living (ADL)
 0.00
 0.47
 0.41
 0.36
 0.21
 0.10
Dead





0.00

Source: Erickson, Wilson, Shannon (1995)

Asada Population Health Metrics 2005 3:7   doi:10.1186/1478-7954-3-7