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Table 2 Health outcomes at baseline and follow-up for the intervention and control group

From: The short-term health and psychosocial impacts of domestic energy efficiency investments in low-income areas: a controlled before and after study

   Intervention Control Effect size Unadjusted Adjusted(a)
Outcome Scale Baseline
M (SD)
Follow up
M (SD)
Baseline
M (SD)
Follow up
M (SD)
Cohen’s d(c) Model(b) B SE p B SE p
MCS (mental health) 0–100 44.81 (12.56) 45.62 (11.94) 46.02 (12.06) 46.85 (12.36) 0.005 L −0.059 0.789 0.940 0.003 0.812 1.000
PCS (physical health) 0–100 42.90 (13.94) 43.11 (13.80) 42.25 (14.47) 41.48 (14.24) 0.107 L 0.987 0.664 0.137 0.976 0.669 0.145
Respiratory symptoms 0–11 2.97 (2.74) 2.91 (2.74) 2.94 (2.67) 3.05 (2.77) 0.061 L −0.155 0.192 0.419 −0.141 0.202 0.485
Asthma symptoms 0–9 2.34 (2.55) 2.20 (2.45) 2.23 (2.50) 2.24 (2.51) 0.051 L −0.088 0.247 0.722 −0.133 0.253 0.600
Subjective wellbeing 0–10 6.55 (2.50) 6.89 (2.25) 6.96 (2.42) 6.92 (2.42) 0.200 L 0.375 0.134 0.005 0.384 0.134 0.004
  1. Note: (a)adjusted for gender, age, housing benefit, income, and smoking status; (b)L = linear, O = ordinal, B = binomial; (c)Cohen’s d effect sizes: small 0.20, medium 0.50, and large 0.80