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Table 1 Distribution of malaria cases by sex and age, Woreta town, Northwest Ethiopia. (2005–2012)

From: Prevalence of malaria in Woreta town, Amhara region, Northwest Ethiopia over eight years

Malaria cases
Sex Age groups (years) Positive (%) Negative(%) OR (95% CI) p-value
Males < 5 3304 (18.7) 8075 (23.4) 1.00  
5–15 10,027 (56.6) 17,995 (52.1) 1.36 (1.30–1.40) < 0.001
> 15 4369 (24.7) 8449 (24.5) 1.26 (1.20–1.34) < 0.001
Sub- total 17,700 (100.0) 34,519 (100.0)   
Females < 5 4558 (29.0) 11,658 (33.9) 1.00  
5–15 7565 (48.1) 15,656 (45.5) 1.24 (1.18–1.30) < 0.001
> 15 3608 (22.9) 7085 (20.6) 1.30 (1.24–1.40) < 0.001
Sub- total 15,731 (100.0) 34,401 (100.0)   
Total < 5 7862 (23.5) 19,639 (28.4) 1.00  
5–15 17,592 (52.6) 33,912 (49.1) 1.30 (1.26–1.34) < 0.001
> 15 7977 (23.9) 15,538 (22.5) 1.29 (1.24–1.33) < 0.001
Total 33,431 (100.0) 69,089 (100.0)   
  1. CI confidence interval, OR odds ratio; < 5 and < 15 indicated study subjects who were less than 5 and 15 years of ages in both sexes, respectively; > 15 indicated those study subjects who were above 15 years of ages