Table 1

Housing features measured during the home assessments included in the RHI or the DMI, with proportion of cases and controls found with each feature and corresponding ORs relative to no evidence

Housing feature evaluatedRHI*DMI*Cases
n (%)
Controls
n (%)
Crude OR (95% CI)
N=188N=454
Mould
 Any mould on walls/ceiling147 (78)310 (68) 1.67 (1.12 to 2.48)
 Any mould on joists23 (12)25 (6) 2.39 (1.32 to 4.33)
 Musty smell30 (16)46 (10) 1.68 (1.03 to 2.76)
Dampness
 Feels quite damp47 (25)95 (21)1.51 (0.99 to 2.30)
 Feels very damp✓ (2)✓ (2)49 (26)78 (17) 1.92 (1.25 to 2.94)
Water leaks
 Minor leaks17 (9)30 (7)1.42 (0.76 to 2.65)
 Major leaks✓ (2)✓ (2)11 (6)22 (5)1.26 (0.60 to 2.65)
 Ponding of water under house12 (6)23 (5)1.28 (0.62 to 2.62)
 Unflued gas heater in any room11 (6)42 (9)0.61 (0.31 to 1.21)
Insulation†
 No floor insulation44 (23)101 (22)1.07 (0.71 to 1.60)
 No ceiling insulation33 (18)76 (17)1.06 (0.68 to 1.66)
Shade
 House a little in shade55 (29)152 (33)0.72 (0.48 to 1.07)
 House a lot in shade✓ (2)50 (27)138 (30)0.72 (0.47 to 1.09)
  • Bold figures indicate that the results are statistically significant at the level of 5%

  • *The ✓ symbol indicates that factor is included in the respective index. Numbers in parentheses indicate weighting of factor if other than 1.

  • †Absence of wall insulation, an item from the original RHI,18 was not assessed.

  • DMI, Damp–Mould Index; RHI, Respiratory Hazard Index.