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Table 2 Comparison of different malaria indices (CI) between control and pre-elimination phase (CP) and elimination phase (EP) in endemic areas of Iran, by parasites species and transmission routes—2001–2014

From: Assessment of the impact of the malaria elimination programme on the burden of disease morbidity in endemic areas of Iran

Parasite

Transmission

Nationality

Iranian/non-Iranian ratioa

Sex

Male/female ratioa

Age over

15/under 15 ratioa

Case detectionb

Active/passive ratioa

CP

EP

CP

EP

CP

EP

CP

EP

Vivax

A

16.8 (8.7–24.9)

4.9 (2.9–6.8)

1.5 (1.4–1.6)

2.3 (1.9–2.6)

1.3 (1.1–1.4)

2.5 (2.0–2.8)

1.5 (1.2–1.7)

1.1 (0.9–1.3)

I

1.0 (0.8–1.1)

0.8 (0.6–0.9)

2.8 (2.4–3.2)

4.4 (3.9–4.9)

2.3 (1.8–2.8)

4.0 (3.5–4.5)

0.5 (0.4–0.5)

0.7 (0.6–0.8)

S

5.9 (4.2–7.6)

1.7 (1.2–2.0)

1.6 (1.5–1.8)

3.1 (2.7–3.5)

1.4 (1.3–1.6)

3.1 (2.8–3.5)

1.2 (1.0–1.4)

0.9 (0.8–1.0)

Falciparum

A

4.3 (1.0–7.6)

3.1 (1.7–4.6)

1.8 (1.4–2.3)

3.0 (2.3–3.7)

2.0 (1.5–2.5)

3.9 (3.0–4.9)

0.6 (0.5–0.8)

0.8 (0.6–1.0)

I

0.6 (0.4–0.7)

0.7 (0.5–08)

2.7 (2.0–3.4)

5.8 (4.4–7.1)

2.2 (1.2–3.1)

5.0 (4.2–5.9)

0.4 (0.3–0.5)

0.6 (0.5–0.8)

S

1.5 (1.0–2.0)

1.0 (0.8–1.2)

2.2 (1.8–2.6)

4.6 (4.0–5.2)

2.0 (1.6–2.6)

4.7 (4.0–5.3)

0.5 (0.4–0.6)

0.7 (0.6–0.8)

Total

4.6 (3.2–5.9)

1.5 (1.2–1.8)

1.7 (1.6–1.8)

3.3 (3.0–3.6)

1.5 (1.3–1.7)

3.3 (3.0–3.6)

1.1 (0.9–1.3)

0.9 (0.8–0.9)

  1. A autochthonous, I imported, S sum
  2. aAll of the ratios examined statistically using multilevel Poisson regression with interaction terms for the phase (CP in compare to the EP). In all of the models, the interaction terms between the phase and the ratios were statistically significant except for the Iranian to non-Iranian ratio in imported vivax cases
  3. bGiven the high coverage of malaria laboratories and their accessibility, Passive Case Detection (PCD) takes place in all endemic rural and urban areas by examining blood smears for all suspected cases who attend the health units. Active Case Detection (ACD) is carried out as a routine activity by health worker through household visits in all endemic rural areas but in the urban areas it is limited to the active foci