Table 2 Factors influencing recruitment and participation in the study
Themes and sub-themes | Barriers and facilitators |
|---|---|
Theme 1: Study design and intervention | |
Group allocation | • Being placed in a placebo group may decrease willingness to participate for some, but not all women • Offering delayed periodontal therapy may increase willingness to participate, as all women would receive treatment |
Daily consumption of milk | • Mandatory consumption of pure milk may decrease the willingness to participate • Provision of food recipes using milk may increase willingness to participate |
Milk provision | • Additional milk provision to the family including young children may increase willingness to participate |
Safety | • Having milk allergy or lactose intolerance hinders participation • Milk fortification does not hinder the willingness to participate |
Theme 2: Food myths | |
Cultural beliefs | • Cultural beliefs regarding dairy intake during pregnancy generally do not hinder participation |
Perception of healthful foods | • Consumption of milk-based foods is perceived as positive during pregnancy and lactation |
Theme 3: Social support | |
Emotional and informational support | • Lack of emotional and informational support may decrease the willingness to participate |
Instrumental and practical support | • Lack of childcare provision decreases willingness to participate |
Theme 4: Views on prenatal care | |
Health care centre | • Positive attitude towards the care provided by the centre may increase willingness to participate |
Health care professionals | • Good personal qualities and trust may increase willingness to participate |
Theme 5: Finance | |
Transportation | • Lack of money for transportation may decrease the willingness to participate |
Financial compensation | • Provision of financial incentives or compensation may increase willingness to participate |