Table 1

Prevalence and ORs (crude and adjusted) of mental health outcomes according to exposure to flooding

n/N (%)*ORaOR† ‡
(95% CI)(95% CI)
M odel 1: Comparing flooded and disrupted with unaffected participants
Probable depression
 Unaffected2/83 (2.4)RefRef
 Disrupted15/292 (5.1)2.19 (0.49 to 9.80)1.38 (0.27 to 6.96)
 Flooded25/106 (23.6)12.50 (2.87 to 54.52)7.77 (1.51 to 40.13)
Probable anxiety
 Unaffected5/83 (6.0)RefRef
 Disrupted19/289 (6.6)1.10 (0.40 to 3.03)0.91 (0.27 to 3.08)
 Flooded24/107 (22.4)4.51 (1.64 to 12.41)4.16 (1.18 to 14.70)
Probable PTSD
 Unaffected3/87 (3.4)RefRef
 Disrupted30/300 (10.0)3.11 (0.93 to 10.45)2.05 (0.57 to 7.40)
 Flooded49/112 (43.8)21.78 (6.49 to 73.08)14.41 (3.91 to 53.13)
‘Any' probable mental health outcome
 Unaffected6/82 (7.3)RefRef
 Disrupted41/285 (14.4)2.13 (0.87 to 5.21)1.88 (0.67 to 5.32)
 Flooded52/107 (48.6)11.98 (4.08 to 29.86)11.81 (3.99 to 34.96)
M odel 2: Comparing repeat with single flooded participants
Probable depression
 Single flooded8/49 (16.3)RefRef
 Repeat flooded17/57 (29.8)2.18 (0.85 to 5.61)1.55 (0.44 to 5.46)
Probable anxiety
 Single flooded11/50 (22.0)RefRef
 Repeat flooded13/57 (22.8)1.05 (0.42 to 2.61)0.89 (0.26 to 2.97)
Probable PTSD
 Single flooded21/51 (41.2)RefRef
 Repeat flooded28/61 (45.9)1.21 (0.57 to 2.57)0.73 (0.27 to 1.97)
'Any' probable mental health outcome
 Single flooded22/48 (45.8)RefRef
 Repeat flooded30/59 (50.8)1.22 (0.57 to 2.62)1.03 (0.39 to 2.73)
  • *N is the total number of participants in each exposure group for whom a complete answer to this outcome instrument was provided, and % is the proportion of those who have the relevant (probable) condition.

  • †Adjusted for age group, sex, local authority, marital status, education level, employment, deprivation score and pre-existing illness.

  • ‡Number of observations included in the multivariable models were: probable depression n=446, probable anxiety n=444, probable PTSD n=464, 'any' probable mental health outcome n=440. Both models included the same participants but the reference group differs. ORs are only presented for the comparison of interest.

  • aOR, adjusted OR; PTSD, post-traumatic stress disorder.