Skip to main content

Table 3 Incidence of malaria infection is presented yearly for the total population, Lihirians and migrants

From: Malaria epidemiology in Lihir Island, Papua New Guinea

 

2006

2007

2008

2009

2010

2011

p-value

All - total population

 

n = 7094

n = 7598

n = 8606

n = 10508

n = 10581

n = 10709

 

Malaria infection

Incidence

601

494

505

570

542

437

< 0.001

IRR

 

0.82

1.02

1.13

0.95

0.81

Lihirians

 

n = 3594

n = 3660

n = 3768

n = 3905

n = 3980

n = 4059

 

Malaria infection

Incidence

723

568

587

740

548

430

< 0.001

IRR

 

0.79

1.03

1.26

0.74

0.79

Migrants

 

n = 3500

n = 3938

n = 4838

n = 6603

n = 6601

n = 6650

 

Malaria infection

Incidence

476

425

441

469

538

442

< 0.001

IRR

 

0.89

1.04

1.06

1.15

0.82

  1. Legend. Incidence was only calculated for the mine-impact area. Incidence is estimated as Minimum community-based incidence rates of all microscopically confirmed malaria infections. The Incidence Rate Ratio (IRR) compares the incidences of two consecutive years.