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Abstract Background The main cause of growth and development delays remains unknown, but it can occur as an interaction between genetic, environmental, and socio-economic factors. Objective The aim of the study was to investigate the prevalence and social determinants of growth and developmental delays among children aged under five years in Qazvin, Iran. Methods A cross-sectional study was conducted between January 2019 to December 2020 with participation of 1800 mothers with children aged 4–60 months who were referred to comprehensive health centers in Qazvin city, Iran. Structural and intermediate social determinants of health were assessed including: parents and children socio-demographic characteristics, families’ living and economic status, parents’ behavioral factors, household food security, mother’s general health, and perceived social support. Children’s growth was assessed based on their anthropometric assessment and their development was assessed using their age-specific Ages and Stages Questionnaire. Data were analyzed using univariable and multivariable logistic regression models using SPSS software version 24 and Stata version 14. Results The prevalence of developmental problems in each domain were 4.28% for personal and social delay, 5.72% for gross motor delay, 6.5% for communication delay, 6.72% for fine motor delay, and 8% for problem-solving delay. The prevalence of weight growth delays was 13.56% and height growth delays was 4.66%. Communication, gross motor, and problem-solving delays were higher among children whose fathers’ smoked cigarettes. Fine motor delays were lower among mothers with education status of high school diploma and university degree vs. the under diploma group. Personal and social delay was significantly higher among families with fair economic status and lower among children when their fathers were employed (vs. unemployed). Weight and height growth delays were higher among mothers who had experienced pregnancy complications and household food insecure families, respectively. Conclusion There are different predictors of growth and developmental delay problems among Iranian children aged under five years including fathers’ smoking, families’ economic status, and household food insecurity as well as history of mothers’ pregnancy complications. The present study’s findings can be used to screen for at-risk of growth and developmental delays among children and could help in designing and implementation of timely interventions.

The coronavirus disease 2019 (COVID-19) pandemic has had different effects on different occupations. The present study was designed to systematically review the available evidence to investigate the pandemic on occupational effects. The academic databases of Scopus, PubMed Central, ProQuest, Science Direct, and ISI Web of Knowledge were searched systematically between December 2019 and February 2021. COVID-19-related fear, concern, worry, anxiety, and stress in combination with job-related MeSH terms were used to search the databases. The methodological quality of included papers was assessed using the Newcastle Ottawa Scale checklist. To synthesize data, a qualitative synthesis of findings was performed due to the small number of included studies (n = 4) and the heterogeneity of the assessed outcomes. Four studies were included in the final analysis. All four studies were cross-sectional, collected the data online, and comprised 1654 participants from four different countries. Fear of COVID-19 was associated with increased future career anxiety, perceived job insecurity, organizational and professional turnover intentions, and decreased job satisfaction. COVID-19 Anxiety Syndrome was associated with scores on the Work and Social Adjustment Scale. As so few studies have been conducted, there are no conclusive findings. More studies using valid and reliable measures to assess fear/anxiety related to COVID-19 and its' association with job attributes are needed. It is also recommended that these associations are examined in variety of different jobs.