title: [Factors influencing pulmonary function in Tunisian women aged 45 years and more].
abstract: BACKGROUND
  The aim of this study was to analyse the factors influencing pulmonary function and inspiratory muscle strength in healthy Tunisian women aged >or=45 years and in particular to determine the effect of parity.
  
  
  METHODS
  A medical questionnaire together with an evaluation of sporting activity score and 2 levels for schooling and socio-economic status was administered. Parity was introduced as numeric, as dichotomous (G1:<or=3; G2: >or=4) and in 3 classes (C1:<2; C2:=3-4; C3: > 4). Plethysmography with measurement of airway conductance and maximal inspiratory pressure was performed.
  
  
  RESULTS
  108 women were included. According to the ascending multiple linear regression, and in decreasing order, the following influencing factors are noted: Age and height, parity, weight and daily activity, schooling level, and finally leisure activity, body mass index, and physical activity. With high parity, and especially in women aged >or=60 years, there was a decrease in inspiratory muscle strength and an obstructive tendency, without associated restrictive component. Parity effects are age independent.
  
  
  CONCLUSIONS
  Factors influencing the pulmonary function of healthy Tunisian women aged >or=45 years are multiple. Lung function declines with increasing parity.
authors.affiliation: Service de physiologie et des explorations fonctionnelles, EPS Farhat Hached Sousse, Tunisie.
authors.forename: H
authors.initials: H
authors.lastname: Ben Saad
authors.forename: M
authors.initials: M
authors.lastname: Tfifha
authors.forename: I
authors.initials: I
authors.lastname: Harrabi
authors.forename: Z
authors.initials: Z
authors.lastname: Tabka
authors.forename: H
authors.initials: H
authors.lastname: Guenard
authors.forename: M
authors.initials: M
authors.lastname: Hayot
authors.forename: A
authors.initials: A
authors.lastname: Zbidi
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D004522:Educational Status; D005260:Female; D006801:Humans; D008875:Middle Aged; D009043:Motor Activity; D010298:Parity; D011247:Pregnancy; D012119:Respiration; D012129:Respiratory Function Tests / Q000379:methods; D012132:Respiratory Muscles / Q000503:physiopathology*; D012307:Risk Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014416:Tunisia