Table 1

Sample size are determined for the second objective of the study to assess knowledge level and factors influencing COVID-19 prevention among residents of Dessie and Kombolcha city administrations, North-East Ethiopia

Variable name	References	Percentage of unexposed	80% power	95% CI	OR	Sample size	Design effect	10% NRR	Final sample size
Sex	36	74	80	0.05	0.40	186	2	37	409
Education	36	51.7	80	0.05	6.30	62	2	12	136
Occupation	37	9.3	80	0.05	5.7	86	2	17	189

NRR, non-response rate.