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Table 1 Description of EM cases characteristics (patients and GPs who declared the case) N = 1831

From: Prevalence and factors associated with a prescription of a Lyme borreliosis serology for erythema migrans diagnosis in general practice: a study from the French sentinel network, 2009–2020

 

 N (%)

Patient characteristics

 

Age, in years (m.d.=5)

 ≤ 15

185 (10.1)

 ]15–35]

289 (15.8)

 ]35–50]

364 (19.9)

 ]50–65]

583 (31.9)

 More than 65

405 (22.2)

Gender (m.d.=45)

 

 Female

957 (53.6)

 Male

829 (46.4)

Reported tick bite (m.d.=215)

 

 Yes

1176 (72.8)

 No

440 (27.2)

Erythema migrans size1(m.d.=176)

 

 < 5 cm

373 (22.5)

 ≥ 5 cm

1282 (77.5)

Type of EM (m.d.=40)

 

 Single

1706 (95.3)

 Multiple

85 (4.7)

Centrifugal growth/expansion1(m.d.=338)

 

 Yes

1403 (94.0)

 No

90 (6.0)

Prescription of a serology (m.d.=88)

 

 Yes

418 (24.0)

 No

1325 (76.0)

SGPs characteristics

Age, in years (m.d.=17)

 

 ≤ 40

344 (19.0)

 ]40–50]

427 (23.5)

 ]50–60]

593 (32.7)

 > 60

450 (24.8)

Gender (m.d.=0)

 

 Female

553 (30.2)

 Male

1278 (69.8)

Type of practice (m.d.=131)

 

 Individual

678 (41.5)

 In groups

957 (58.5)

Regions by incidence rates2,3(m.d.=0)

 

 High incidence region

864 (47.2)

 Moderate incidence region

374 (20.4)

 Low incidence region

593 (32.4)

Type of municipality of practice (m.d.=2)

 

 Rural

540 (29.5)

 Urban

1289 (70.5)

Number of cases seen by SGPs on a yearly basis(m.d.=0)

 

 ≤ 1 case

490 (26.8)

 ]1–5[

943 (51.5)

 ≥ 5 cases

398 (21.7)

Study period (m.d.=0)

 

 2009–2014

498 (27.2)

 2015–2020

1333 (72.8)

  1. m.d. = Missing data
  2. 1Information not collected in 2009 and 2010
  3. 2Regions of SGP’s practice
  4. 3Low incidence rate: < 50 cases/100 000 ; moderate incidence rate: [50–100[ cases/100 000 ; high incidence rate: ≥ 100 cases/100 000