Skip to main content
Top
Published in: BMC Public Health 1/2013

Open Access 01-12-2013 | Research article

Patterns and determinants of breastfeeding and complementary feeding practices of Emirati Mothers in the United Arab Emirates

Author: Hadia Radwan

Published in: BMC Public Health | Issue 1/2013

Login to get access

Abstract

Background

Breastfeeding is the preferred method of feeding for the infant. The present study aimed at investigating the different infant feeding practices and the influencing factors in the United Arab Emirates (UAE).

Methods

A convenient sample of 593 Emirati mothers who had infants up to 2 years of age was interviewed. The interviews included a detailed questionnaire and conducted in the Maternal and Child Health Centers (MCH) and Primary Health Centers (PHC) in three cities.

Results

Almost all the mothers in the study had initiated breastfeeding (98%). The mean duration of breastfeeding was 8.6 months. The initiation and duration of breastfeeding rates were influenced by mother’s age (P<0.034)and education(P<0.01), parity(OR=2.13; P<0.001), rooming in(OR=21.70; P<0.001), nipple problem(P<0.010) and use of contraception(P<0.034). As for the feeding patterns, the results of the multiple logistic analyses revealed that rooming in (OR=4.48; P<0.001), feeding on demand (OR=2.29; P<0.005) and feeding more frequently at night (P<0.001) emerged as significant factors associated with exclusive or predominantly breastfeeding practices. Among the 593 infants in the study, 24.1% had complementary feeding, 25% of the infants were exclusively breastfed, and 49.4% were predominantly breastfed since birth. About 30% of the infants were given nonmilk fluids such as: Anis seed drink (Yansun), grippe water and tea before 3 months of age. The majority of the infants (83.5%) in the three areas received solid food before the age of 6 months. A variety of reasons were reported as perceived by mothers for terminating breastfeeding. The most common reasons were: new pregnancy (32.5%), insufficient milk supply (24.4%) and infant weaned itself (24.4%).

Conclusions

In conclusion, infant and young child feeding practices in this study were suboptimal. There is a need for a national community-based breastfeeding intervention programme and for the promotion of exclusive breastfeeding as part of a primary public health strategy to decrease health risks and problems in the UAE.
Appendix
Available only for authorised users
Literature
1.
go back to reference Kramer MS, Chalmers B, Hodnett E, Sevkovskaya Z, Dzikovich I, Shapiro S: Promotion of breastfeeding intervention trial (PROBIT): a randomized trial in the Republic of Belarus. JAMA. 2001, 285: 413-420. 10.1001/jama.285.4.413.CrossRefPubMed Kramer MS, Chalmers B, Hodnett E, Sevkovskaya Z, Dzikovich I, Shapiro S: Promotion of breastfeeding intervention trial (PROBIT): a randomized trial in the Republic of Belarus. JAMA. 2001, 285: 413-420. 10.1001/jama.285.4.413.CrossRefPubMed
2.
go back to reference UNICEF: State of the World's Children. 2008, UNICEF UNICEF: State of the World's Children. 2008, UNICEF
3.
go back to reference Musaiger AO: Overweight and obesity in the Eastern Mediterranean Region: can we control it?. East Mediterr Health J. 2004, 10 (6): 789-93.PubMed Musaiger AO: Overweight and obesity in the Eastern Mediterranean Region: can we control it?. East Mediterr Health J. 2004, 10 (6): 789-93.PubMed
4.
go back to reference WHO: Global Strategy for Infant and Young Child Feeding. 2003, Geneva: WHO WHO: Global Strategy for Infant and Young Child Feeding. 2003, Geneva: WHO
5.
go back to reference Gillman MW: The first months of life: a critical period for development of obesity. AJCN. 2008, 87 (6): 1587-1589. Gillman MW: The first months of life: a critical period for development of obesity. AJCN. 2008, 87 (6): 1587-1589.
6.
go back to reference Arenz S, Ruckerl R, Koletzko B, von Kries R: Breast-feeding and childhood obesity: a systematic review. Int J Obes Relat Metab Disord. 2004, 28: 1247-1256. 10.1038/sj.ijo.0802758.CrossRefPubMed Arenz S, Ruckerl R, Koletzko B, von Kries R: Breast-feeding and childhood obesity: a systematic review. Int J Obes Relat Metab Disord. 2004, 28: 1247-1256. 10.1038/sj.ijo.0802758.CrossRefPubMed
7.
go back to reference Horta BL, Bahln R, Martines JC, Victora CG: Evidence on the long- term effects of breastfeeding: systematic reviews and meta-analyses. 2007, Geneva: WHO, 52-57. Horta BL, Bahln R, Martines JC, Victora CG: Evidence on the long- term effects of breastfeeding: systematic reviews and meta-analyses. 2007, Geneva: WHO, 52-57.
8.
go back to reference Ip S, Chung M, Raman G, Chew P, Magula N, DeVine D, Trikalinos T, Lau J: Breastfeeding and maternal and infant health outcomes in developed countries. Evidence Reports/Technology Assessments, No. 153. AHRQ Publication No. 07-E007. 2007, Rockville, MD: Agency for Healthcare Research and Quality Ip S, Chung M, Raman G, Chew P, Magula N, DeVine D, Trikalinos T, Lau J: Breastfeeding and maternal and infant health outcomes in developed countries. Evidence Reports/Technology Assessments, No. 153. AHRQ Publication No. 07-E007. 2007, Rockville, MD: Agency for Healthcare Research and Quality
9.
go back to reference Musaiger AO: Breastfeeding Patterns in the Arabian Gulf Countries. World Rev Nutr Diet. 1995, 78: 164-190.CrossRefPubMed Musaiger AO: Breastfeeding Patterns in the Arabian Gulf Countries. World Rev Nutr Diet. 1995, 78: 164-190.CrossRefPubMed
10.
go back to reference Harfouche JK: Breast-feeding patterns: a review of studies in the Eastern Mediterranean Region. 1982, Alexandria: World Health Organization, Eastern Mediterranean Regional Office, EMRO Technical publications Series, No.4 Harfouche JK: Breast-feeding patterns: a review of studies in the Eastern Mediterranean Region. 1982, Alexandria: World Health Organization, Eastern Mediterranean Regional Office, EMRO Technical publications Series, No.4
11.
go back to reference Balo NM, Shembesh NM, Singh R: Maternal characteristics and infant and young child feeding in Benghazi. East Mediterr Health J. 1996, 2 (3): 432-439. Balo NM, Shembesh NM, Singh R: Maternal characteristics and infant and young child feeding in Benghazi. East Mediterr Health J. 1996, 2 (3): 432-439.
12.
go back to reference Autret M, Miladi S: Report on the state of food and nutrition in the United Arab Emirates. Part II. 1979, UNICEF Autret M, Miladi S: Report on the state of food and nutrition in the United Arab Emirates. Part II. 1979, UNICEF
13.
go back to reference National Nutrition Survey: UAE Ministry of Health. 1992, UAE National Nutrition Survey: UAE Ministry of Health. 1992, UAE
14.
go back to reference Al-Mazroui MJ, Oyejide CO, Bener A, Cheema MY: Breastfeeding and supplemental feeding for neonates in Al-Ain, United Arab Emirates. J Trop Pediatre. 1997, 43: 304-306. 10.1093/tropej/43.5.304.CrossRef Al-Mazroui MJ, Oyejide CO, Bener A, Cheema MY: Breastfeeding and supplemental feeding for neonates in Al-Ain, United Arab Emirates. J Trop Pediatre. 1997, 43: 304-306. 10.1093/tropej/43.5.304.CrossRef
15.
go back to reference Osman N, El-Sabban F: Infant feeding practices in Al-Ain, United Arab Emirates. WHO. 1999, 5: 103-110. Osman N, El-Sabban F: Infant feeding practices in Al-Ain, United Arab Emirates. WHO. 1999, 5: 103-110.
16.
go back to reference Al Tajir GK, Sulieman HS, Badrinath P: Intragroup differences in risk factors for breastfeeding outcome in a multicultural community. J Hum Lact. 2006, 22 (1): 39-47.CrossRefPubMed Al Tajir GK, Sulieman HS, Badrinath P: Intragroup differences in risk factors for breastfeeding outcome in a multicultural community. J Hum Lact. 2006, 22 (1): 39-47.CrossRefPubMed
17.
go back to reference World Health Organization (WHO): Indicators for assessing infant and young child feeding practices Part 1Definitions. 2008, Geneva: WHO World Health Organization (WHO): Indicators for assessing infant and young child feeding practices Part 1Definitions. 2008, Geneva: WHO
18.
go back to reference Labbok M, Krasovec K: Towards consistency in breastfeeding Definitions. Stud Fam Plann. 1990, 21 (4): 226-230. 10.2307/1966617.CrossRefPubMed Labbok M, Krasovec K: Towards consistency in breastfeeding Definitions. Stud Fam Plann. 1990, 21 (4): 226-230. 10.2307/1966617.CrossRefPubMed
19.
go back to reference WHO: Planning Guide for national implementation of the Global Strategy for Infant and Young Child Feeding. 2007, Geneva: WHO WHO: Planning Guide for national implementation of the Global Strategy for Infant and Young Child Feeding. 2007, Geneva: WHO
20.
go back to reference Kronborg H, Vaeth M: The influence of psychosocial factors on the duration of breastfeeding. Scand J Public Health. 2004, 32 (3): 210-218. 10.1080/14034940310019218.CrossRefPubMed Kronborg H, Vaeth M: The influence of psychosocial factors on the duration of breastfeeding. Scand J Public Health. 2004, 32 (3): 210-218. 10.1080/14034940310019218.CrossRefPubMed
21.
go back to reference Leung EY, Au KY, Cheng SS, Kok SY, Lui HK, Wong WC: Practice of breastfeeding and factors that affect breastfeeding in Hong Kong. Hong Kong Med J. 2006, 12 (6): 432-436.PubMed Leung EY, Au KY, Cheng SS, Kok SY, Lui HK, Wong WC: Practice of breastfeeding and factors that affect breastfeeding in Hong Kong. Hong Kong Med J. 2006, 12 (6): 432-436.PubMed
22.
go back to reference Amin T, Hablas H, Al Qader AA: Determinants of initiation and exclusivity of breastfeeding in Al Hassa, Saudi Arabia. Breastfeed Med. 2011, 6 (2): 59-68. 10.1089/bfm.2010.0018.CrossRefPubMed Amin T, Hablas H, Al Qader AA: Determinants of initiation and exclusivity of breastfeeding in Al Hassa, Saudi Arabia. Breastfeed Med. 2011, 6 (2): 59-68. 10.1089/bfm.2010.0018.CrossRefPubMed
23.
go back to reference Kassam-Lallanie D, Moynagh K, Ross H, Sellar L, Sigmundson C: Infant Feeding in Halton. 2002, Halton Regional Health Department Kassam-Lallanie D, Moynagh K, Ross H, Sellar L, Sigmundson C: Infant Feeding in Halton. 2002, Halton Regional Health Department
24.
go back to reference Simard I, O'Brien HT, Beaudoin A, Turcotte D, Damant D, Ferland S: Factors influencing the initiation and duration of breastfeeding among low-income women followed by the Canada prenatal nutrition program in 4 regions of Quebec. J Hum Lact. 2005, 21: 327-337. 10.1177/0890334405275831.CrossRefPubMed Simard I, O'Brien HT, Beaudoin A, Turcotte D, Damant D, Ferland S: Factors influencing the initiation and duration of breastfeeding among low-income women followed by the Canada prenatal nutrition program in 4 regions of Quebec. J Hum Lact. 2005, 21: 327-337. 10.1177/0890334405275831.CrossRefPubMed
25.
go back to reference Wilmoth TA, Elder JP: An assessment of research on breastfeeding promotion strategies in developing countries. Soc Sci Med. 1995, 41 (4): 579-594. 10.1016/0277-9536(94)00363-X.CrossRefPubMed Wilmoth TA, Elder JP: An assessment of research on breastfeeding promotion strategies in developing countries. Soc Sci Med. 1995, 41 (4): 579-594. 10.1016/0277-9536(94)00363-X.CrossRefPubMed
26.
go back to reference Morisky DE, Kar SB, Chaudhry AS, Chen KR, Shaheen M, Chickering K: Breastfeeding practices in Pakistan. PJN. 2002, 1 (3): 137-142.CrossRef Morisky DE, Kar SB, Chaudhry AS, Chen KR, Shaheen M, Chickering K: Breastfeeding practices in Pakistan. PJN. 2002, 1 (3): 137-142.CrossRef
27.
go back to reference Abada TS, Trovato F, Lalu N: Determinants of breast-feeding in the Philippines: a survival analysis. Soc Sci Med. 2001, 52 (I): 71-81.CrossRefPubMed Abada TS, Trovato F, Lalu N: Determinants of breast-feeding in the Philippines: a survival analysis. Soc Sci Med. 2001, 52 (I): 71-81.CrossRefPubMed
28.
go back to reference Marques NM, Lira PIC, Lima MC, Lacerda da Silva N, Filho MB, Huttly SRA, Ashworth A: Breastfeeding and early weaning practices in Northeast Brazil: a longitudinal study. Pediatrics. 2001, 108 (4): e66-10.1542/peds.108.4.e66.CrossRefPubMed Marques NM, Lira PIC, Lima MC, Lacerda da Silva N, Filho MB, Huttly SRA, Ashworth A: Breastfeeding and early weaning practices in Northeast Brazil: a longitudinal study. Pediatrics. 2001, 108 (4): e66-10.1542/peds.108.4.e66.CrossRefPubMed
29.
go back to reference Awumbila M: Social Dynamics and infants feeding practices in Northern Ghana. Institute of African Studies: Res Rev. 2003, 19 (2): 86-89. Awumbila M: Social Dynamics and infants feeding practices in Northern Ghana. Institute of African Studies: Res Rev. 2003, 19 (2): 86-89.
30.
go back to reference Li R, Zhao Z, Mokdad A, Barker L, Grammer-Stravon L: Prevalence of breastfeeding in the United States: The 2001 National Immunization Survey. Pediatrics. 2003, 111 (5 part 2): 1198-1201.PubMed Li R, Zhao Z, Mokdad A, Barker L, Grammer-Stravon L: Prevalence of breastfeeding in the United States: The 2001 National Immunization Survey. Pediatrics. 2003, 111 (5 part 2): 1198-1201.PubMed
31.
go back to reference Heath AM, Tuttle CR, Simons MSL, Cleghom CL, Parnell WR: A longitudinal Study of breastfeeding and weaning practices during the first year of life in Dunedin, New Zealand. J Am Diet Assoc. 2002, 102 (7): 937-944. 10.1016/S0002-8223(02)90214-2.CrossRefPubMed Heath AM, Tuttle CR, Simons MSL, Cleghom CL, Parnell WR: A longitudinal Study of breastfeeding and weaning practices during the first year of life in Dunedin, New Zealand. J Am Diet Assoc. 2002, 102 (7): 937-944. 10.1016/S0002-8223(02)90214-2.CrossRefPubMed
32.
go back to reference Lande B, Anderson LF, Baerug A, Trygg KU, Lund-Larsen K, Veierod MB, Bjorneboe GE: Infant feeding practices and associated factors in the first six months of Life. The Norwegian Infant Nutrition Survey. Acta Paediatr. 2003, 92: 152-161.CrossRefPubMed Lande B, Anderson LF, Baerug A, Trygg KU, Lund-Larsen K, Veierod MB, Bjorneboe GE: Infant feeding practices and associated factors in the first six months of Life. The Norwegian Infant Nutrition Survey. Acta Paediatr. 2003, 92: 152-161.CrossRefPubMed
33.
go back to reference Faber M, Benade AJS: Nutritional status and dietary practices of 4-24-month-old children from a rural South African community. Public Health Nut. 1999, 2: 179-185. Faber M, Benade AJS: Nutritional status and dietary practices of 4-24-month-old children from a rural South African community. Public Health Nut. 1999, 2: 179-185.
34.
go back to reference Engle PL: Infant feeding styles: barriers and opportunities for good nutrition in India. Nutrition Rev. 2002, 50: S109-S114.CrossRef Engle PL: Infant feeding styles: barriers and opportunities for good nutrition in India. Nutrition Rev. 2002, 50: S109-S114.CrossRef
35.
go back to reference El Mouzan MI, Al Omar AA, Al Salloum AA, Al Herbish AS, Qurachi MM: Trends in infant nutrition in Saudi Arabia: compliance with WHO recommendations. Ann Saudi Med. 2009, 29 (1): 20-23. 10.4103/0256-4947.51812.CrossRefPubMedPubMedCentral El Mouzan MI, Al Omar AA, Al Salloum AA, Al Herbish AS, Qurachi MM: Trends in infant nutrition in Saudi Arabia: compliance with WHO recommendations. Ann Saudi Med. 2009, 29 (1): 20-23. 10.4103/0256-4947.51812.CrossRefPubMedPubMedCentral
36.
go back to reference Sachdev HPS, Krishna J, Puri RK, Satyanarayana SL, Kumar S: Water supplementation in exclusively breastfed infants during summer in the tropics. Lancet. 1991, 337: 929-933. 10.1016/0140-6736(91)91568-F.CrossRefPubMed Sachdev HPS, Krishna J, Puri RK, Satyanarayana SL, Kumar S: Water supplementation in exclusively breastfed infants during summer in the tropics. Lancet. 1991, 337: 929-933. 10.1016/0140-6736(91)91568-F.CrossRefPubMed
37.
go back to reference Almorth S, Bidinger PD: No need for water supplementation for exclusively breastfed infants under hot and arid conditions. Trans R Soc Trop Med Hyg. 1990, 84: 602-4. 10.1016/0035-9203(90)90056-K.CrossRef Almorth S, Bidinger PD: No need for water supplementation for exclusively breastfed infants under hot and arid conditions. Trans R Soc Trop Med Hyg. 1990, 84: 602-4. 10.1016/0035-9203(90)90056-K.CrossRef
38.
go back to reference Ruel MT, Menon P: Child feeding practices are associated with child nutritional status in Latin America: innovative uses of the demographic and health surveys. J Nutr. 2002, 132: 1180-1187.PubMed Ruel MT, Menon P: Child feeding practices are associated with child nutritional status in Latin America: innovative uses of the demographic and health surveys. J Nutr. 2002, 132: 1180-1187.PubMed
39.
go back to reference Cernades JM, Nocada G, Barrera L: Maternal and perinatal factors influencing the duration of exclusive breastfeeding during the first six months of life. J of Hum Lact. 2003, 19 (2): 136-44. 10.1177/0890334403253292.CrossRef Cernades JM, Nocada G, Barrera L: Maternal and perinatal factors influencing the duration of exclusive breastfeeding during the first six months of life. J of Hum Lact. 2003, 19 (2): 136-44. 10.1177/0890334403253292.CrossRef
40.
go back to reference Ogbeide DO, Siddiqui S, Al-Khalifa IM, Karim A: Breastfeeding in a Saudi Arabian community: profile of parents and influencing factors. Saudi Med J. 2004, 25 (5): 580-584.PubMed Ogbeide DO, Siddiqui S, Al-Khalifa IM, Karim A: Breastfeeding in a Saudi Arabian community: profile of parents and influencing factors. Saudi Med J. 2004, 25 (5): 580-584.PubMed
41.
go back to reference Batal M, Boulghouriian C, Abdalla A, Afifi R: Breast-feeding and feeding practices of infants in a developing country: a national survey in Lebanon. Public Health Nutr. 2006, 3: 313-319.CrossRef Batal M, Boulghouriian C, Abdalla A, Afifi R: Breast-feeding and feeding practices of infants in a developing country: a national survey in Lebanon. Public Health Nutr. 2006, 3: 313-319.CrossRef
42.
go back to reference Scott JA, Landers MCG, Hughes RM, Binns CW: Factors associated with breastfeeding at discharge and duration of breastfeeding. JPCH. 2001, 37: 254-261. Scott JA, Landers MCG, Hughes RM, Binns CW: Factors associated with breastfeeding at discharge and duration of breastfeeding. JPCH. 2001, 37: 254-261.
43.
go back to reference Duong DV, Binns CW, Lee AH: Breastfeeding initiation and exclusive breastfeeding in rural Vietnam. Public Health Nutr. 2004, 7 (6): 795-799.CrossRefPubMed Duong DV, Binns CW, Lee AH: Breastfeeding initiation and exclusive breastfeeding in rural Vietnam. Public Health Nutr. 2004, 7 (6): 795-799.CrossRefPubMed
44.
go back to reference Dewey KG, Cohen RJ, Brown KH, Rivera LL: Effects of exclusive breastfeeding for four versus six months on maternal nutritional status and infant motor development: results of two randomized trials in Honduras. J Nutr. 2001, 131: 262-267.PubMed Dewey KG, Cohen RJ, Brown KH, Rivera LL: Effects of exclusive breastfeeding for four versus six months on maternal nutritional status and infant motor development: results of two randomized trials in Honduras. J Nutr. 2001, 131: 262-267.PubMed
45.
go back to reference Hornell A, Aarts C, Kylberg E, Hofvander Y, Gebre-Medhin M: Breastfeeding patterns in exclusively breastfed infants: a longitudinal prospective study in Uppsala, Sweden. Acta Paediatr. 1999, 88 (2): 203-211. 10.1111/j.1651-2227.1999.tb01083.x.CrossRefPubMed Hornell A, Aarts C, Kylberg E, Hofvander Y, Gebre-Medhin M: Breastfeeding patterns in exclusively breastfed infants: a longitudinal prospective study in Uppsala, Sweden. Acta Paediatr. 1999, 88 (2): 203-211. 10.1111/j.1651-2227.1999.tb01083.x.CrossRefPubMed
46.
go back to reference Wayland C: Breastfeeding patterns in Rio Branco, Acre, Brazil: a survey of reasons for weaning. Cad Saude Publica. 2004, 20 (6): 1757-1761. 10.1590/S0102-311X2004000600038.CrossRefPubMed Wayland C: Breastfeeding patterns in Rio Branco, Acre, Brazil: a survey of reasons for weaning. Cad Saude Publica. 2004, 20 (6): 1757-1761. 10.1590/S0102-311X2004000600038.CrossRefPubMed
47.
go back to reference Al Jassir MS, El-Bashir BM, Moizuddin SK, Abu-Nayan AAR: Infant feeding in Saudi Arabia: mothers’ attitudes and practices. East Mediterr Health J. 2006, 12 (1&2): 6-13.PubMed Al Jassir MS, El-Bashir BM, Moizuddin SK, Abu-Nayan AAR: Infant feeding in Saudi Arabia: mothers’ attitudes and practices. East Mediterr Health J. 2006, 12 (1&2): 6-13.PubMed
48.
go back to reference Haroun H, Mahfour MS, Ibrabim BY: Breast feeding indicators in Sudan: a case study of Wad Medani town. SJPH. 2008, 3 (2): 81- Haroun H, Mahfour MS, Ibrabim BY: Breast feeding indicators in Sudan: a case study of Wad Medani town. SJPH. 2008, 3 (2): 81-
49.
go back to reference Greiner T: Sustained breastfeeding, complementation and care. Food Nutr Bull. 1995, 16: 313-319. Greiner T: Sustained breastfeeding, complementation and care. Food Nutr Bull. 1995, 16: 313-319.
50.
go back to reference Davies-Adetugbo AA: Sociocultural factors and the promotion of exclusive breastfeeding in rural Yoruba communities of Osun state. Nigeria Soc Sci Med. 1999, 45 (1): 113-125.CrossRef Davies-Adetugbo AA: Sociocultural factors and the promotion of exclusive breastfeeding in rural Yoruba communities of Osun state. Nigeria Soc Sci Med. 1999, 45 (1): 113-125.CrossRef
51.
go back to reference Khassawneh M, Khader Y, Amarin Z: Knowledge, attitude and practice of breastfeeding in the north of Jordan: a cross-sectional study. Int Breastfeed J. 2006, 1: 17-10.1186/1746-4358-1-17.CrossRefPubMedPubMedCentral Khassawneh M, Khader Y, Amarin Z: Knowledge, attitude and practice of breastfeeding in the north of Jordan: a cross-sectional study. Int Breastfeed J. 2006, 1: 17-10.1186/1746-4358-1-17.CrossRefPubMedPubMedCentral
52.
go back to reference Daly SE, Hartmann R: Infant demand and milk supply: Part 1. J Hum Lact. 1995, 11 (1): 21-37. 10.1177/089033449501100119.CrossRefPubMed Daly SE, Hartmann R: Infant demand and milk supply: Part 1. J Hum Lact. 1995, 11 (1): 21-37. 10.1177/089033449501100119.CrossRefPubMed
Metadata
Title
Patterns and determinants of breastfeeding and complementary feeding practices of Emirati Mothers in the United Arab Emirates
Author
Hadia Radwan
Publication date
01-12-2013
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2013
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/1471-2458-13-171

Other articles of this Issue 1/2013

BMC Public Health 1/2013 Go to the issue