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Table 3 OLS estimation: SF12 computed on the first and second factor using the 2006 sample and the pooled 2012/13 sample

From: Validation of the SF12 mental and physical health measure for the population from a low-income country in sub-Saharan Africa

 (1)(2)(3)(4)
SF12
1st Factor
SF12
1st Factor Standardised coefficient values
SF12
2nd Factor
SF12
2nd Factor Standardised coefficient values
Model (1) SF12 1st and 2nd Factor regressed on the Health variables using the 2006 sample
 HIV Status−3.583***−0.082−0.424−0.010
(1.197) (1.217) 
 Subjective Wellbeing4.121***0.389−1.780***−0.168
(0.268) (0.273) 
 Constant39.468*** 54.007*** 
(2.176) (2.461) 
 Observations2069206920692069
 CovariatesYESYESYESYES
 RegionYESYESYESYES
 R-squared0.2280.2280.0510.051
Model (2) SF12 1st and 2nd Factor regressed on the Health variables using the 2012/13 sample
 Normal Weight0.751**0.037−0.497−0.024
(0.347) (0.621) 
 Overweight0.5570.019−0.523−0.017
(0.484) (0.833) 
 Obese−0.777− 0.017−0.314− 0.007
(0.714) (1.313) 
 Cognitive Test Score0.168***0.0930.0060.003
(0.032) (0.049) 
 Average Grip Strength0.117***0.0780.0150.010
(0.024) (0.040) 
 PhQ9 Depression Scale−0.501***−0.185−0.448***−0.162
(0.073) (0.108) 
 GAD7 Anxiety Scale−1.755***−0.501− 0.587***− 0.163
(0.095) (0.141) 
 Subjective Wellbeing1.469***0.150− 1.727***−0.172
(0.140) (0.253) 
 Constant47.889*** 48.550*** 
(1.742) (2.817) 
 Observations2091209120912091
 CovariatesYESYESYESYES
 YearYESYESYESYES
 RegionYESYESYESYES
 R-squared0.6750.6750.1120.112
  1. The outcome variable is in (1) and (2) the SF12 measure computed on the first factor loading and in (4) and (5), the SF12 measure computed on the second factor loadings for the Malawian population. In columns (2) and (4), are the standardised beta-coefficients presented. Model (1) presents findings from the analysis on the 2006 sample. Model (2) presents findings from the analysis on the 2012/13 sample. We control for year and region effects, and covariates. Robust standard errors in parentheses; *** p < 0.01, ** p < 0.05, * p < 0.1