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Table 3 Factors related to P. vivax recurrence

From: Evaluation of Plasmodium vivax malaria recurrence in Brazil

Predictor factor

Categories

Generalized Estimation Equation (GEE) model

Prentice, Williams and Peterson (PWP) survival model

N (%)

N = 151,784

RR (95% CI), p value

HR (95% CI), p value

Age categorical

Older than 36 years

68,173 (44.9)

0.62 (0.57–0.67), p < 0.0001

0.75 (0.70; 0.81), p < 0.0001

15–35 years

46,380 (30.6)

0.71 (0.65–0.77), p < 0.0001

0.78 (0.72;0.84), p < 0.0001

12–14 years

8337 (5.5)

0.77 (0.7–0.85), p < 0.0001

0.81 (0.74;0.88), p < 0.0001

9–11 years

7604 (5)

0.82 (0.75–0.91), p < 0.0001

0.87 (0.80;0.96), p = 0.003

4–8 years

11,982 (7.9)

0.8 (0.75–0.86), p < 0.0001

0.83 (0.78;0.88), p < 0.0001

≤ 3

9308 (6.1)

REF

REF

Hypnozoite treatment

No primaquine

2667 (1.8)

1.43 (1.29–1.58), p < 0.0001

1.53 (1.39;1.69), p < 0.0001

Primaquine 3–4.2 mg/kg

149,117 (98.2)

REF

REF

Gender

Male

90,914 (59.9)

1.11 (1.07–1.14), p < 0.0001

1.08 (1.05;1.11), p < 0.0001

Female

60,870 (40.1)

REF

REF

Ethnic background

Not informed

1377 (0.9)

1.60 (1.4–1.82), p < 0.0001

1.19 (1.02;1.38), p = 0.03

Native indigenous

25,705 (16.9)

0.78 (0.73–0.84), p < 0.0001

0.89 (0.84;0.95), p < 0.0001

Mixed background

106,819 (70.4)

1.03 (0.97–1.09), p = 0.34

0.95 (0.87;1.04), p = 0.25

Asian background

1527 (1)

0.96 (0.8–1.15), p = 0.68

0.94 (0.80;1.11), p = 0.49

African background

5908 (3.9)

0.94 (0.86–1.04), p = 0.23

0.95 (0.87;1.04), p = 0.25

White

10,448 (6.9)

REF

REF

Economic activity

Road dam construction

467 (0.3)

1.01 (0.8–1.27), p = 0.94

0.92 (0.74;1.13), p = 0.42

Fishing hunting

3106 (2)

0.72 (0.63–0.82), p < 0.0001

0.73 (0.65;0.82), p < 0.0001

Vegetal extraction

1191 (0.8)

0.59 (0.48–0.73), p < 0.0001

0.70 (0.58;0.85), p < 0.0001

Mining

7046 (4.6)

0.81 (0.74–0.89), p < 0.0001

0.86 (0.79;0.93), p < 0.0001

Tourism

3182 (2.1)

0.79 (0.71–0.89), p < 0.0001

0.76 (0.68;0.84), p < 0.0001

Agriculture livestock

32,919 (21.7)

0.77 (0.73–0.82), p < 0.0001

0.79 (0.75;0.83), p < 0.0001

Others

89,132 (58.7)

0.85 (0.81–0.9), p < 0.0001

0.91 (0.87;0.95), p < 0.0001

Domestic

14,741 (9.7)

REF

REF

Years in school

Complete graduation

1341 (0.9)

1.14 (0.97–1.35), p = 0.12

1.04 (0.89;1.22), p = 0.63

Complete high school

13,647 (9)

1.14 (1.06–1.23), p < 0.0001

1.07 (1.00;1.15), p = 0.04

Incomplete high school

12,070 (8)

1.15 (1.07–1.24), p < 0.0001

1.09 (1.02;1.17), p = 0.02

Complete fundamental studies

9745 (6.4)

1.11 (1.03–1.2), p = 0.01

1.05 (0.97;1.13), p = 0.24

Not informed

17,596 (11.6)

1.33 (1.22–1.44), p < 0.0001

1.27 (1.17;1.37), p < 0.0001

Incomplete fundamental studies

81,190 (53.5)

1.12 (1.06–1.18), p < 0.0001

1.06 (1.01;1.12), p = 0.02

Illiterate

16,195 (10.7)

REF

REF

  1. REF reference group