Large-scale evaluation of interventions designed to reduce childhood Drownings in rural Bangladesh: a before and after cohort study

Table 2 Pre-post comparison cumulative incidence of drowning by treatment category

Variables	Baseline Period (2012–2013)			Post Implementation Period (2014–2016)			Pre-post comparison
Variables	Population (N = 48,561) n (%)	Drowning^a (N = 78) n (%)	Age-adjusted cumulative incidence per 100,000 population per year (95% CI)	Population (N = 122,032) n (%)	Drowning^b (N = 105) n (%)	Age-adjusted cumulative incidence per 100,000 population per year (95% CI)	Cumulative incidence ratio^c (95% CI)	P-value
Treatment category^d
Playpen only (aged 9–35 months)	1150 (2.36)	0 (0)	0	5981 (4.90)	22 (20.95)	183.92 (121.15, 279.03)	0	0
Crèche only (aged 9–47 months)	37,769 (77.78)	78 (100)	206.10 (138.70, 318.00)	70,594 (57.85)	66 (62.86)	46.15 (28.86, 74.34)	0.12 (0.05, 0.29)	< 0.0001
Dual treatment (aged 9–47 months)	8592 (17.69)	0 (0)	0	39,479 (32.35)	8 (7.62)	10.13 (5.07, 20.30)	0	0

^aDrowning information obtained over 1-year recall period
^bDrowning information obtained over an average 2-year implementation period
^cCumulative incidence ratios was adjusted for sex, age, and study area using Poisson regression model with Generalized Estimating Equations (GEE)
^dChildren aged 0–8 months were not assigned to any intervention under the treatment arm

ISSN: 2197-1714