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Table 6 Uni- and multivariable linear regression models.

From: Questionnaire-based approach to assess schoolchildren's physical fitness and its potential role in exploring the putative impact of helminth and Plasmodium spp. infections in Côte d'Ivoire

  

Sample 1

Sample 2

  

Physical functioning

Physical functioning

Model

Explanatories

Coefficient

95% CI a

p-value

Coefficient

95% CI a

p-value

Univariable

S. haematobium light infection

-4.01

-10.84, 2.83

0.249

-0.24

-7.46, 6.97

0.947

 

S. haematobium heavy infection

-4.47

-11.59, 2.64

0.216

-1.39

-8.84, 6.07

0.713

 

S. mansoni light infection

-3.22

-8.55, 2.10

0.234

-3.85

-9.33, 1.63

0.167

 

S. mansoni moderate infection

-2.21

-8.69, 4.26

0.501

1.16

-5.63, 7.94

0.736

 

S. mansoni heavy infection

3.97

-13.92, 21.85

0.662

-3.44

-23.98, 17.09

0.741

 

A. lumbricoides light and moderate infection

3.79

-17.81, 25.38

0.730

2.81

-17.59, 23.22

0.785

 

Hookworm light and moderate infection

3.15

-3.53, 9.84

0.353

2.08

-4.85, 9.00

0.554

 

Concurrent helminth infections: one

-1.71

-9.95, 6.53

0.682

3.22

-5.33, 11.76

0.458

 

Concurrent helminth infections: two

-4.73

-12.64, 3.19

0.240

-1.59

-9.73, 6.55

0.699

 

Concurrent helminth infections: three and more

-0.95

-11.76, 9.86

0.862

3.75

-7.29, 14.79

0.503

 

Plasmodium spp. infection

-1.18

-6.60, 4.23

0.667

-1.83

-7.30, 3.62

0.507

 

Sex

4.13

-0.59, 8.85

0.086

2.37

-2.57, 7.30

0.345

 

Age

-0.13

-1.48, 1.22

0.849

-0.05

-1.44, 1.35

0.948

Multivariableb,c

S. haematobium light infection

11.24

-34.86, 57.35

0.631

16.50

-27.75, 60.75

0.462

 

S. haematobium heavy infection

10.88

-35.37, 57.13

0.643

15.96

-28.49, 60.40

0.479

 

S. mansoni light infection

14.73

-30.72, 60.19

0.523

19.10

-24.10, 62.30

0.383

 

S. mansoni moderate infection

17.47

-28.19, 63.14

0.451

25.80

-17.61, 69.21

0.242

 

S. mansoni heavy infection

23.30

-25.63, 72.23

0.348

21.20

-26.58, 68.98

0.382

 

A. lumbricoides light and moderate infection

12.51

-19.88, 44.91

0.447

11.80

-19.01, 42.61

0.450

 

Hookworm light and moderate infection

17.82

-26.46, 62.09

0.428

20.03

-21.82, 61.89

0.345

 

Concurrent helminth infections: one

-13.16

-59.73, 33.41

0.577

-13.10

-57.89, 31.70

0.564

 

Concurrent helminth infections: two

-31.47

-122.23, 59.28

0.494

-38.70

-125.13, 47.73

0.377

 

Concurrent helminth infections: three and more

-46.00

-180.52, 88.52

0.500

-53.39

-181.14, 74.37

0.410

 

Plasmodium spp. infection

-1.21

-6.94, 4.52

0.678

-2.05

-7.87, 3.76

0.486

 

Sex

3.28

-1.82, 8.38

0.206

2.03

-3.25, 7.30

0.448

 

Age

0.11

-1.38, 1.60

0.882

-0.01

-1.54, 1.53

0.992

  1. a 95% confidence interval
  2. b Key indicators of the regression model based on sample 1: F(13,153) = 0.55, p = 0.891, R2 = 0.045
  3. c Key indicators of the regression model based on sample 2: F(13,123) = 0.66, p = 0.797, R2 = 0.065
  4. * Statistically significant (p < 0.05)
  5. Questionnaire scores on physical functioning as self-reported outcomes and helminth and Plasmodium spp. infections (reference: no infection) as parasitologically diagnosed explanatories in samples 1 and 2 from a study carried out in Grand Moutcho school, Agboville, Côte d'Ivoire, in early 2010 [17]. Sample 1 with n = 167 observations (97 boys, 70 girls) includes all children with complete questionnaire, parasitological and clinical data. Sample 2 with n = 137 observations (79 boys, 58 girls) includes all children from sample 1 who had not only complete questionnaire, parasitological and clinical data, but also valid shuttle run test results (see also Figure 1). Infection intensities were defined according to WHO guidelines [26]. Categories of explanatories with n ≤ 1 observations were combined with the next best category of the same explanatory. Participants sex (reference: female) and age (in years) were included as potential confounders.