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Table 4 Population estimates of mean SF-36 Scale scores and Component Summary Scores (with N and standard deviation) from the HILDA Survey. Means (and sd) from ABS (1995) are also presented, together with estimate of independent t test to assess differences between estimates.

From: The validity of the SF-36 in an Australian National Household Survey: demonstrating the applicability of the Household Income and Labour Dynamics in Australia (HILDA) Survey to examination of health inequalities

  HILDA Population (weighted) Australian population norms1  
  Mean (sd) N Mean (sd) N t test
Physical Component Summary Score 2 49.23 (10.6) 12 320    
Mental Component Summary Score 2 49.79 (10.3) 12 320    
Scales      
Physical Functioning 82.49 (24.0) 12 760 82.6 (23.9) 18 734 0.40
Role Physical 79.06 (36.2) 12 714 79.9 (35.1) 18 710 2.06
Bodily Pain 73.89 (25.6) 12 977 76.8 (25.0) 18 699 10.09
General Health 69.54 (21.6) 12 718 71.6 (20.3) 18 715 8.60
Vitality 60.72 (20.0) 12 938 64.5 (19.8) 18 728 16.64
Social Functioning 81.14 (24.0) 13 031 85.0 (22.5) 18 789 14.64
Role Emotional 81.83 (33.8) 12 686 82.9 (32.3) 18 620 2.82
Mental Health 73.42 (17.7) 12 930 75.9 (17.0) 18 676 12.55
  1. 1 From ABS, 1995
  2. 2 Physical and mental summary scores were calculated differently in the ABS publication (using factor scores from principle component analysis and stardardised to have a mean of 50 and sd of 10). Therefore, it is not appropriate to directly compare with the HILDA data derived using the standard scoring procedures.