An easy tool to assess ventilation in health facilities as part of air-borne transmission prevention: a cross-sectional survey from Uganda

Table 1 Effects of the hierarchical model

Facility	Room	Mean overall velocity	Average effect round			Random effect position
Facility	Room	Mean overall velocity	Estimate	95% CI	p-value	Between^*	Within
Facility 1	Laboratory	0.36	−0.01	−0.03 - 0.05	0.185	3.45 e-14	0.21
	OPD consultation	0.49	0	−0.03 - 0.04	0.827	3.03 e-10	0.38
	OPD waiting room	0.27	−0.01	−0.02 – 0.00	0.043	1.26 e-13	0.16
	TB room	0.19	0.01	−0.01 - 0.02	0.435	1.36 e-13	0.17
Facility 2	Laboratory	0.22	0.03	0.00 - 0.07	0.024	2.96 e-08	0.41
	OPD consultation	0.16	0.01	−0.01 - 0.02	0.284	5.22 e-11	0.11
	OPD waiting room	0.22	0.02	0.00 - 0.03	0.025	0.13	0.22
	TB room	0.17	0.01	−0.01 - 0.03	0.069	0.02	0.12
Facility 3	Laboratory	0.15	0	−0.01 - 0.00	0.207	6.39 e-15	0.08
	OPD consultation	−0.31	−0.02	−0.04 - 0.00	0.016	4.42 e-11	0.16
	OPD waiting room	0.38	0.01	−0.00 - 0.02	0.372	5.04 e-10	0.34
	TB room	0.39	0.11	−0.02 - 0.25	0.083	1.09 e-13	0.3
Facility 4	Laboratory	0.21	0.01	0.00 - 0.03	0.089	1.59 e-09	0.2
	OPD consultation	0.52	0.04	−0.01 - 0.1	0.104	5.25 e-11	0.41
	OPD waiting room	0.37	0.03	0.0 - 0.05	0.048	0.02	0.36
	TB room	0.23	0.02	0.00 - 0.04	0.045	2.01 e − 12	0.24
Facility 5	Laboratory	0.29	0.06	−0.01 - 0.127	0.071	4.60 e-13	0.35
	OPD consultation	0.37	0.04	−0.1 - 0.09	0.124	1.05 e-11	0.32
	OPD waiting room	0.25	0.01	−0.01 - 0.03	0.427	3.07 e-10	0.2
Facility 6	Laboratory	0.16	0.01	0.00 - 0.02	0.09	2.05 e-12	0.15
	OPD consultation	0.42	−0.01	−0.04 - 0.01	0.346	4.89 e-13	0.2
	OPD waiting room	0.24	0.03	0.01 - 0.04	< 0.001	0.04	0.3
	TB room	0.25	0.01	−0.02 - 0.03	0.596	0.06	0.2

^*Scientific notation y e-14 meaning y⁻¹⁴
The model presented in this table included the adjusting variables weather and temperature, which are not shown in the table

ISSN: 1471-2334