Prevalence of flu-like syndrome in healthcare workers in Brazil: a national study, 2020

OBJECTIVE

To evaluate the prevalence of reported symptoms of flu-like syndrome (FS) among HCW and compare HCW and non-HCW on the chance of reporting these symptoms, this study analyzed data of a population-based survey conducted in Brazil.

METHODS

A cross-sectional analysis was performed with self-reported data from the Brazilian National Household Sample Survey (PNAD Covid-19) from May 2020. The authors analyzed a probability sample of 125,179 workers, aged 18 to 65, with monthly income lower than US$ 3 500. The variable HCW or non-HCW was the covariate of interest and having reported FS symptoms or not was the outcome variable. Authors tested interactions of HCW with other covariates. A logit model - when controlling for sociodemographic, employment, and geographic characteristics - investigated the chance of HCW reporting FS compared to non-HCW.

RESULTS

HCW have a significant effect (odds ratio of 1.369) on reporting FS symptoms when compared to non-HCW. HCW account for 4.17% of the sample, with a higher frequency of FS (3.38%) than observed for non-HCW (2.43%). Female, non-white and older individuals had higher chance to report FS.

CONCLUSIONS

The HCW had a higher chance of reporting symptoms than non-HCW aged over 18 years in the labor force. These results emphasize guidelines for preventive measures to reduce workplace exposures in the healthcare facilities. The prevalence is disproportionately affecting HCW women and HCW non-whites. In the regions North and Northeast the steeper progression is consistent with the hypothesis of socioeconomic factors, and it explains the greater prevalence in HCW and non-HCW living in those territories.

E-health and consultation rates for respiratory illnesses in infants: a randomised clinical trial in primary care

BACKGROUND

It is assumed that clear and complete information on the internet can reduce healthcare consumption.

AIM

We assessed in a randomised clinical trial whether a personalised online parent information program on infant respiratory symptoms can reduce primary care utilisation.

DESIGN AND SETTING

Randomised clinical trial in primary healthcare centres in a new residential area in the Netherlands.

METHOD

A web-based program (WHISTLER-online) was developed for parents that offered general information on childhood respiratory disease and personalised risk assessments. Parents of infants who enrolled from June 2009 to June 2012 in WHISTLER, an ongoing population-based birth cohort, were randomly allocated to 'WHISTLER-online' or 'usual care'. Information about, first, consultations and, second, associated prescriptions for respiratory symptoms during the first year of life was collected from the electronic patient files.

RESULTS

A total of 323 infants were randomly assigned to WHISTLER-online and 322 to usual care, and 314 and 305, respectively, were analysed. Of the parents, 70% used WHISTLER-online, and 99% of them judged it to be clear and useful information. There were differences neither in consultation rates for respiratory symptoms (incidence rate ratio 0.96 [95% CI = 0.85 to 1.09, P = 0.532]) nor in associated drug prescriptions.

CONCLUSION

Although parents greatly appreciate the provided facilities, a personalised e-support program on respiratory illnesses in infants does not substantially reduce healthcare utilisation.

Cannabis, tobacco smoking, and lung function: a cross-sectional observational study in a general practice population

BACKGROUND

Health concerns around cannabis use have focused on the potential relationship with psychosis but the effect of cannabis smoking on respiratory health has received less attention.

AIM

To investigate the association between tobacco-only smoking compared with tobacco plus cannabis smoking and adverse outcomes in respiratory health and lung function.

DESIGN AND SETTING

The design was cross-sectional with two groups recruited: cigarette smokers with tobacco pack-years; cannabis smokers with cannabis joint-years. Recruitment occurred in a general practice in Scotland with 12 500 patients.

METHOD

Exposures measured were tobacco smoking (pack-years) and cannabis smoking (joint-years). Cannabis type (resin, herbal, or both) was recorded by self-report. Respiratory symptoms were recorded using NHANES and MRC questionnaires. Lung function was measured by spirometry (FEV1/FVC ratio).

RESULTS

Participants consisted of 500 individuals (242 males). Mean age of tobacco-only smokers was 45 years; median tobacco exposure was 25 pack-years. Mean age of cannabis and tobacco smokers was 37 years; median tobacco exposure was 19 pack-years, rising to 22.5 when tobacco smoked with cannabis. Although tobacco and cannabis use were associated with increased reporting of respiratory symptoms, this was higher among those who also smoked cannabis. Both tobacco and cannabis users had evidence of impaired lung function but, in fully adjusted analyses, each additional joint-year of cannabis use was associated with a 0.3% (95% confidence interval = 0.0 to 0.5) increase in prevalence of chronic obstructive pulmonary disease.

CONCLUSION

In adults who predominantly smoked resin cannabis mixed with tobacco, additional adverse effects were observed on respiratory health relating to cannabis use.

Predicting prognosis and effect of antibiotic treatment in rhinosinusitis

PURPOSE

In evaluating complaints suggestive of rhinosinusitis, family physicians have to rely chiefly on the findings of a history, a physical examination, and plain radiographs. Yet, evidence of the value of signs, symptoms, or radiographs in the management of these patients is sparse. We aimed to determine whether clinical signs and symptoms or radiographic findings can predict the duration of the illness, the effect of antibiotic treatment, or both.

METHODS

We analyzed data from 300 patients with rhinosinusitis-like complaints participating in a randomized controlled trial comparing amoxicillin with placebo. We used Cox regression analysis to assess the association between the presence at baseline of rhinosinusitis signs and symptoms or an abnormal radiograph and the subsequent course of the illness. We then tested for interactions to assess whether the presence of any of these findings predicted a beneficial effect of antibiotic treatment.

RESULTS

Two factors at baseline were independently associated with a prolonged course of the illness: a general feeling of illness (hazard ratio = 0.77, 95% confidence interval, 0.60-0.99) and reduced productivity (hazard ratio = 0.68, 95% confidence interval, 0.53-0.88). Neither typical sinusitis signs and symptoms nor abnormal radiographs had any prognostic value. Prognosis remained unchanged whether or not patients were treated with antibiotics, no matter what symptoms patients had at baseline.

CONCLUSIONS

In a large group of average patients with rhinosinusitis, neither the presence of typical signs or symptoms nor an abnormal radiograph provided information with regard to the prognosis or the effect of amoxicillin. The time to recovery was longer in patients who felt ill at baseline or who did not feel able to work, but the course of their illness was not influenced by antibiotic treatment.

Temporal change in the prevalence of respiratory symptoms and obstructive airways disease 1993-2001

BACKGROUND

There has been little available information regarding secular changes in the prevalence of respiratory symptoms since the mid-1990s.

AIM

To examine changes in the prevalence of respiratory symptoms for 1993-2001.

DESIGN OF STUDY

A series of postal questionnaire surveys.

SETTING

Two general practice populations, including all age groups.

METHOD

Four postal respiratory questionnaire surveys were conducted between 1993 and 2001. Subjects who replied to two or more surveys (8058 adults and 2350 children) were included in the main analyses. Validated scoring systems were used to define obstructive airways disease in adults and asthma in children.

RESULTS

Over the 8-year observation period there were increases among adults in the crude prevalence of wheeze, being woken by cough, receipt of current asthma medication, and of obstructive airways disease, compared with decreases in children for wheeze, night cough, asthma attacks, and asthma. For adults, adjusted odds ratios per year of secular increase were 1.03 (95% confidence interval [CI] = 1.02 to 1.03) for wheeze, 1.03 (95% CI = 1.02 to 1.03) for being woken by cough, 1.03 (95% CI = 1.02 to 1.04) for asthma medication, and 1.02 (95% CI = 1.01 to 1.03) for obstructive airways disease. These increases were greater in those aged over 44 years, in males, and in those without a family history of asthma or a history of hayfever or eczema. Corresponding decreases for children were 0.94 (95% CI = 0.92 to 0.97) for wheeze, 0.93 (95% CI = 0.91 to 0.96) for night cough, 0.93 (95% CI = 0.90 to 0.95) for asthma attacks and 0.98 (95% CI = 0.95 to 1.00) for asthma.

CONCLUSION

The increases found in adults are more likely to be due to chronic obstructive pulmonary disease (COPD) than asthma. This is supported by the decreases in symptom and asthma prevalence in children.