Follow-up, study design and outcome parameters

Aims: The primary aim of the study is to explore different factors affecting parents’ smoking behaviour, and especially how smoking may be connected with individual differences in the psychological process of becoming a parent. In the current paper, we present the study design together with basic information on the study population. Methods: The Central Satakunta Maternity and Child Health Clinic (KESALATU) Study is an ongoing prospective follow-up study in primary healthcare of the Satakunta region of southwest Finland. Families were recruited during their first maternity clinic visit between 1 September 2016 and 31 December 2019, and participation will continue until the child is 1.5 years of age. The study combines different sources and types of data: e.g. routine data obtained from primary healthcare clinic records, specific parental self-report data and data from a new exhaled carbon monoxide meter indicating maternal smoking. The data are collected using frequently repeated assessments both during pregnancy and postnatally. The methods cover the following areas of interest: family background factors (including smoking and alcohol use), self-reported parental–foetal/infant attachment and mentalization, self-reported stress, depression and quality of life. Results: 589 pregnant women and their partners were asked to participate in the study during the collection time period. The final study population consisted of 248 (42.1%) pregnant women and 160 (27.1%) partners. Conclusions: The new methods and study design have the potential to increase our understanding about the link between early parenting psychology, prenatal psychosocial risk factors and parental health behaviour.

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Analysis of randomized and nonrandomized patients in clinical trials using the comprehensive cohort follow-up study design

Controlled Clinical Trials ◽

10.1016/0197-2456(92)90005-k ◽

1992 ◽

Vol 13 (3) ◽

pp. 226-239 ◽

Cited By ~ 65

Author(s):

Manfred Olschewski ◽

Martin Schumacher ◽

Kathryn B. Davis

Keyword(s):

Clinical Trials ◽

Study Design ◽

Follow Up Study

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SPANISH FAMILIAL HYPERCHOLESTEROLAEMIA (FH) COHORT FOLLOW-UP STUDY. DESIGN AND BASELINE CHARACTERISTICS

Atherosclerosis Supplements ◽

10.1016/s1567-5688(08)70364-7 ◽

2008 ◽

Vol 9 (1) ◽

pp. 91

Author(s):

R. Alonso ◽

N. Mata ◽

F. Fuentes ◽

J. Villar ◽

R. Figueras ◽

...

Keyword(s):

Study Design ◽

Familial Hypercholesterolaemia ◽

Follow Up Study ◽

Baseline Characteristics

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A follow-up study of heroin addicts (VEdeTTE2): study design and protocol

Substance Abuse Treatment Prevention and Policy ◽

10.1186/1747-597x-2-9 ◽

2007 ◽

Vol 2 (1) ◽

Author(s):

Federica D Vigna-Taglianti ◽

Federica Mathis ◽

Roberto Diecidue ◽

Paola Burroni ◽

Antonio Iannaccone ◽

...

Keyword(s):

Study Design ◽

Heroin Addicts ◽

Follow Up Study

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Returning to work after sickness absence due to common mental disorders: study design and baseline findings from an 18 months mixed methods follow-up study in Germany

BMC Public Health ◽

10.1186/s12889-019-7999-z ◽

2019 ◽

Vol 19 (1) ◽

Author(s):

Alexandra Sikora ◽

Gundolf Schneider ◽

Ralf Stegmann ◽

Uta Wegewitz

Keyword(s):

Mixed Methods ◽

Mental Disorders ◽

Quantitative Study ◽

Study Design ◽

Common Mental Disorders ◽

Secondary Outcome ◽

Time Duration ◽

Follow Up Study ◽

Returning To Work

Abstract Background With nearly 30 % of the general population experiencing one mental disorder in 12 months, common mental disorders (CMDs) are highly prevalent in Germany and mainly affect the workforce. Therefore, the processes of successfully returning to work (RTW) and achieving a sustainable RTW (SRTW) are important not only for recovery but the prevention of negative consequences like job loss or disability retirement. While factors influencing and predicting the time until RTW are well-investigated in other countries, research on determinants of RTW and SRTW has received little attention in Germany. Consequently, this study aims to investigate the RTW and SRTW processes due to CMDs from the employees´ perspective in Germany. Methods This prospective cohort study uses a convergent parallel mixed methods design with a quantitative sample and qualitative sub-sample. Two hundred eighty-six participants of the quantitative study and a sub-sample of 32 participants of the qualitative study were included. The primary outcome of the quantitative study is the time until RTW and full RTW. The secondary outcome is the sustainability of RTW. The following measures will be used to cover work-, RTW- and health-related factors: working time, duration of sickness absences, functional ability, work ability, RTW self-efficacy, social support, work-privacy conflict, job satisfaction, job crafting and depressive symptoms. Quantitative and qualitative data will be integrated at the end. Discussion The paper provides an overview on study design, recruitment, sample characteristics and baseline findings of an 18 months mixed methods follow-up study in Germany. This study will provide evidence of (S)RTW processes and its influencing factors due to CMDs in Germany and therefore contribute to further improvement of its (S)RTW practices. Trial registration German Clinical Trials Register (ID: DRKS00010903, July 28, 2017, retrospectively registered).

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A survey of craniomandibular disorders in 1000 12-year-olds. Study design and baseline data in a follow-up study

European Journal of Orthodontics ◽

10.1093/ejo/13.2.111 ◽

1991 ◽

Vol 13 (2) ◽

pp. 111-123 ◽

Cited By ~ 35

Author(s):

B. Mohlin ◽

J. R. Pilley ◽

W. C. Shaw

Keyword(s):

Study Design ◽

Baseline Data ◽

Craniomandibular Disorders ◽

Follow Up Study

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A two-year follow-up study of very preterm infants in Italy: aims and study design

Paediatrics and Child Health ◽

10.1016/j.paed.2009.08.027 ◽

2009 ◽

Vol 19 ◽

pp. S145-S152 ◽

Cited By ~ 5

Author(s):

Marina Cuttini ◽

Barbara Caravale ◽

Virgilio Carnielli ◽

Valeria Chiandotto ◽

Benedetta Contoli ◽

...

Keyword(s):

Preterm Infants ◽

Study Design ◽

Very Preterm Infants ◽

Very Preterm ◽

Follow Up Study

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Comparing forwarder boom-control systems based on an automatically recorded follow-up dataset

Silva Fennica ◽

10.14214/sf.10161 ◽

2019 ◽

Vol 53 (2) ◽

Cited By ~ 1

Author(s):

Jussi Manner ◽

Anders Mörk ◽

Martin Englund

Keyword(s):

Control Systems ◽

Study Design ◽

Work Productivity ◽

Machine Time ◽

Causal Relationships ◽

Follow Up Study ◽

Southern Central ◽

Cost Efficient ◽

Plot Design

Crane work is the most time-consuming work element in forwarding. Hence, assist systems like boom-tip control are of interest. The first commercially available boom-tip control for forwarders was introduced in 2013. In this study we analysed whether replacing conventional boom control (CBC) with John Deereâs version of boom-tip control (named Intelligent Boom Control, IBC), increases crane-work productivity. We used data automatically gathered from 10 final-felling stands, covering typical logging conditions for southern, central and northern Sweden. Two John Deere 1510E and two John Deere 1910G forwarders were operated by seven experienced operators during the follow-up study, covering 1238 loads in total. A split-plot design was applied to isolate effects of the boom-control system being used (CBC, IBC). We found that using IBC for loading work (crane work and driving included) saved 5.2% of productive machine time compared to using CBC (pââ¤â0.05). The corresponding saving when using IBC for unloading work was 7.9% (pââ¤â0.05). Depending on geophysical factors, this corresponds to approximately 4% savings in productive machine time for forwarding as a whole, including pure transport (with and without load). Moreover, the study introduced in cut-to-length context a novel field-study design to collect a large follow-up dataset in the course of ordinary forwarding operations. We found the study design to be a cost-efficient way to combine the representativeness of conventional follow-up datasets with the ability to establish causal relationships. Establishment of causal relationships has traditionally been possible only through observational time studies or standardized experiments.

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