marginally significantp=0.047
Results Compared with baseline, follow-up surveys showed (1) a small non-significant decrease in the mean number of people per bedroom in the house on the night before the survey (3.4, 95% CI 3.1 to 3.6 at baseline vs 3.2, 95% CI 2.9 to 3.4 at follow-up; natural logarithm transformed t test, t=1.3, p=0.102); (2) a marginally significant overall improvement in infrastructure function scores (Kruskal–Wallis test, χ 2 =3.9, p=0.047); and (3) no clear overall improvement in hygiene (Kruskal–Wallis test, χ 2 =0.3, p=0.605).