CURRICULUM VITAE
PROFESSOR OLUSOLA AYENI, Msc. Ph.d
Dr. Olusola Ayeni holds a Bachelor's degree in Statistics from the University of Ibadan and
advanced degrees in Medical Statistics from the London School of Hygiene and Tropical
Medicine of the University of London.
He was an academic staff of the University of Ibadan from 1969 until October 1985, serving as
Professor of Medical Statistics during the last five years of his service. He took voluntary early
retirement in October 1985 to join the World Health Organization's Special Programme of
Research, Development and Research Training in Human Reproduction (WHO/HRP). At the
WHO/HRP he was in-charge of the Clinical Trials and Informatics Support Team that provided
statistical and data processing support to all the Programme's international multicentre research
and research capability strengthening activities.
He retired from the WHO in June 2004. In July 2004 he returned to the University of Ibadan as a
visiting professor in the then department of Epidemiology, Medical Statistics and Environmental
Health (EMSEH) to participate in the development of its postgraduate program.
Dr. Ayeni is an applied medical statistician and demographer with expertise in study design
including protocol development, data management and statistical methods. He has significant
experience in organizing research capability strengthening activities in developing countries in
the areas of research methodology, biostatistics and data management, including curriculum
design and didactic teaching.
He has authored or co-authored over 100 articles, background papers, book and book chapters in
areas such as sources and evaluation of health statistics, estimation of health indices and
population parameters, development of health statistics education and design and analysis of
studies on various aspects of reproductive health such as contraceptive safety and efficacy and
breast-feeding.
2
Personal data
Date of birth:
11thMay 1944
Marital status:
Married
Nationality:
Nigerian
University Education
University of Ibadan, Nigeria
1962 - 1966
London School of Hygiene and Tropical Medicine
1968 – 1969
(University of London)
1972 - 1973
Academic Qualifications
B.Sc. (Hons) Statistics (Ibadan)
1966
M.Sc. Medical Statistics (London)
1969
Ph.D. (London)
1974
Scholarships & Prizes
State Scholarship University of Ibadan
1962
College Scholarship University of Ibadan
1963
Commonwealth Medical Scholarship
1972
3
Work Experience
July 2004 till date
Visiting Professor / Adjunct Professor
University of Ibadan
July 1985 – June 2004
Chief of Clinical Trials and Informatics Support, Special
Programme of Research, Development and Research Training in
Human Reproduction (HRP), World Health Organization, HQ,
Geneva, Switzerland
1980 – 1985
Professor of Medical Statistics, Department of Preventive and
Social Medicine, College of Medicine, University of Ibadan,
Nigeria; Consultant Medical Statistician, University College
Hospital, Ibadan, Nigeria
1975 – 1980
Senior Lecturer in Medical Statistics, Department of Preventive
and Social Medicine, College of Medicine, University of Ibadan,
Nigeria; Consultant Medical Statistician, University College
Hospital, Ibadan, Nigeria
1969 – 1975
Lecturer in Medical Statistics, Department of Preventive and
Social Medicine, College of Medicine, University of Ibadan,
Nigeria
1966 – 1968
Statistician, Federal Office of Statistics, Lagos, Nigeria
4
Responsibilities at the Department of Epidemiology and Medical Statistics University of Ibadan,
2004 till date
a. Teaching
Development of the syllabus, the preparation of lecture notes and the teaching of the
following graduate courses since 2004
EMS 710 Clinical Trials
EMS 720 Demographic Method
EMS 716 Survival Analysis
EMS 739 Advanced Demographic Methods
b. Supervision of MSc / MPH dissertattions
a. M.Sc.
Oritogun K.S. (2005)
Comparative Contraceptive effectiveness of the male and female condom
Makinde O.A. (2005)
A comparison of the fatality and survival rates of suspected measles cases
between 0-8 month old infants and above 9 month old children
Olusanya B.A. (2010)
Pattern of presentation of strabismus among patients of the eye clinic of
Univerisity College Hospital (UCH) Ibadan
Fasina O. (2011)
Pattern of presentation of orbito-ocular tumours in University College Hospital
(UCH), Ibadan
Moradeyo D.M. (2011)
Pattern of mortality among people living with HIV/AIDS attending adult
antiretroviral clinic. University College Hospital (UCH) Ibadan
Lateef Sakeeb (2011)
Quality of life and burden of care in primary family caregivers of people with
chronic mental illness.
5
Adamu D.M. (2012)
Characteristics and determinants of patients discontinuing breast cancer follow-up
care at the Radiotherapy Department, University College Hospital from 2001 2010
Fantola J.O. (2006)
Seasonal variation of deaths in Igbo Ora
Atoyebi K.S. (2010)
Factors affecting ownership of bed nets in Nigeria: Evidence from Nigeria
Demographic and Health Survey 2008
Cheserem L.K. (2012)
Regional variations in seasonality of births in Nigeria (1990 – 2007)
Olaosun A.D. (2012)
Prevalence and correlates of self-ear-cleaning among National Youth Service
Corps (NYSC) members in Osun State, Nigeria.
Ibrahim O.A. (2006)
Low vision and ocular complaints among secondary school students of Ibadan
North Local Government.
Igbodekwe F.C. (2012)
Correlates of contraceptive use among Nigerian women of childbearing age.
b. MPH
Chiezeh O.M. (2011)
Indices of male fertility from the 2003 Nigeria Demographic and Health Survey
Onigbanjo A.H. (2010)
Characteristics and Completeness of Births and Deaths registration in Mokola
Area of Ibadan, Oyo State
Adbulaziz F. (2011)
Estimate of fertility and child mortality in Jos North Local Government Area,
Plateau State
6
Okpechi F.U. (2013)
Utilization and determinants of post natal care among rural women in Olokoro,
Umuahia South-Eastern Nigeria
Atte O.G. (2014)
Socio-demographic determinants of elderly well-being in Ijumu Local
Government Area, Kogi State, Nigeria
c. Ph.D Supervision
Completed
Akinyemi J.O. (2014)
Levels, Trends and Differentials in under-five mortality in Nigeria (1990-2008)
Ongoing
Latona O.O.
Oweghoro B.M.
Fawole O.I.
Olaosun A.
7
Publications and Communications
These cover three themes: sources and evaluation of health statistics; estimation of health indices
and other population parameters and the application of biostatistics to clinical trials and
epidemiological studies (statistical consulting).
A.
Publications in learned journals
1.
Ayeni, O. (1971) Guidelines for the establishment of a vital statistics registration system
in Nigeria. Nig. Med. J. Vol. 4 No.1 pp 214-219.
2.
Isaacs, W.A., Effiong, C.E. and Ayeni, O. (1972): Steroid treatment in the prevention of
painful epidose in sickle cell disease. Lancet,
March 11, pp 570-571.
3.
Magbagbeola, J.A.O. and Ayeni, O. (1972): Some aspects of endotracheal anesthesia in
Nigerians. W. Afr. Med. J. Vol. XXXXI No.6, pp 161-164.
4.
Bienzle, U., Ayeni, 0.,Lucas, A.O. and Luzzatto, L. (1972): G6PD and malaria: greater
resistance of females heterozygous for enzyme deficiency and of males with nondeficient variant. Lancet, pp 107-110.
5.
Ayeni, O. (1972) A comparative study ofthe performance of direct and concessional
entrants into the University ofIbadan Medical School 1956- 1969. Brit. J. Med. Educ.
Vol. 6, No.4, pp 277-285.
6.
Essien, E.M., Usanga, E.A. and Ayeni, O. (1973): The normal platelet Factor-3
availability in some Nigerian population groups. Scand. J. Haemat. Vol. 10, pp 378-385.
7.
Oyediran, A.B.O.O., Ayeni, 0.,Durowoju, J.E.O., Akinkugbe, 0.0. andAdadevoh, B.K.
(1973): The relationship between urea clearance and urine flow rate in young adult
Nigerians. Ghana med. J. Vol. 12 No.4, pp 348-352.
8.
Ayeni, O. and Olayinka, A. (1974) Some demographic measures of Nigerian rural
population. Nig. J. Sc. Vol. 8 No.1, pp 11-25.
9.
Ogunbode, O. and Ayeni, O. (1974): Anaemia following obstetric haemorrhage - and
evaluation of treatment by Iron dextran infusion. Nig. Med. J. Vol. 4, No.3, pp 162-165.
10.
Adekunle, A.A. and Ayeni, O. (1974): Occurrence and distribution of mycotoxic flora in
some Nigerian food. Egyptian J. Microbiol. Vol. 9, pp 25-33.
8
11.
Osunkoya, B.O., Cook, A. and Ayeni, O. (1974): Studies on the effect of lymphoid cells:
Lymphocyte transformation and giant cell formation in leucocyte cultures from clinical
measles. Archiv. fur-diegesantevirusforshung Vol. 14, pp 313-322.
12.
Kale, O.O., Bammeke, A.O. and Ayeni, O. (1974): An evaluation of skin snip techniques
used in the qualitative assessment of microfilarial densities of onchocerca volvulus.
Bull.of the WHO Vol. 51, No.5,pp 547-549.
13.
Effiong, C.E., Aderele, W.1., Akinkumi, A. and Ayeni, O. (1974): Serum electrolytes and
urea in healthy Nigerian children. Nig. J. Paed. Vol. 1, No.1, pp 3-9.
14.
Ayeni, O. (1975) Sex ratio of live births in South Western Nigeria. Ann.Human. Biol.
Vol. 2 No.2, pp 137-141.
15.
Usanga, E.A. and Ayeni, O. (1975): Quality control in haematological laboratory. Nig.
Med. J. Vol. 5 No.3, pp 228-232.
16.
Ogunbode, O.,Ayeni, O. and Adadevoh, B.K. (1975): Amniotic fluid and creatinine in
anaemic pregnant Nigerian women. Int. J. of Gynae. andObstr. Vol. 13 No.5 pp 206-208.
17.
Soyanwo, M.A.O., Ayeni O. and Lucas, A.O. (1975): Sex, Parity and Hypertension in the
negro. In Hypertension in Africa ed. O.O. Akinkugbe. Litramed Publications Ikeja. pp.
171-182.
18.
Ayeni, O. (1976) The importance of morbidity statistics in the evaluation of public health
in Africa. J. ofthe Pop. Assoc. of Africa (JimlarMutane) Vol. 1, No.2 pp 193-197.
19.
Ekanem, 1.1. and Ayeni, O. (1976) Models for measuring digital preference in the
censuses of developing countries. J. of the Pop. Assoc. of Africa (JimlarMutane) Vol. 1
No.2 pp 65-87.
20.
Adeniyi, A. and Ayeni, O. (1976): Plasma immunoglobulin levels inNigerian infant in the
first year of life. Afri. J. Med. Sc. Vol. 5, No.4, pp 279-285.
21.
Oduntan, S.O. and Ayeni, O. (1976): Correlates of low birth weight in twoNigerian
communities. Trop. geogr. Med. Vol. 28, pp 220-223.
22.
Oduntan, S.O., Ayeni, O. and Kale, O.O. (1976): The age of menarche in Nigerian girls.
Ann. Human Biol. Vol. 3 No.3 pp 269-274.
23.
Ogunbode, O., Ayeni, O. and Adadevoh, B.K. (1976): Amniotic fluid bilirubin and
creatinine concentrations in Nigerian pregnant women. Nig. med. J. 6 No.2, pp 163-167.
24.
Solanke, T.F., Ayeni, O. and Osanyintuyi, S.O. (1976): Effects of mixtureof Red pepper
(capsiumfrutescens) and an amino acid on gastric acid secretion. Nig. med. J. Vol. 6,
No.1, pp 23-25.
25.
Onadeko, B.O., Falase, A.O., and Ayeni, O. (1976): Pulmonary Studies inNigerian
sportsmen. Afr. J. med. Sc. Vol. 5 No.4, pp 291-295.
9
26.
Effiong, C.E., Amakhu, V.E., Laditan, A.A. and Ayeni, O. (1976):Birthweights of
Nigerian children. Nig. Med. J. Vol. 6 No.1, pp 63-68.
27.
Adelusi, B., Ayeni, O.,Fabiyi, A. and Osunkoya, B.O. (1976): Serologicalevidence for
venereal transmission of Herpes Type 2 Virus infectioninIbadan. Nig. Med. J. Vol. 6, No.
4 pp 386-391.
28.
Ogunbode, O.,Oluboyede, O., Ayeni, O. and Esan, G.J.F. (1976):Diagnosis of iron
deficiency anaemia among Nigerian Pregnant women by serum iron/TIBC determination.
Int. J. ofGynae. &Obst. Vol. 14, pp 246-250.
29.
Fetuga, B.L., Babatunde, O.M., Ayeni, O. and Oyenuga, V.A. (1976):Association among
some carcass traits in three weight groups of pigs. Nig. J. Animal Prod. Vol. 12 No.2, pp
165-18l.
30.
Ogunbode, O.,Oluboyede, O. and Ayeni, O. (1977): The treatment of iron deficiency
witha new intramuscular iron preparation Ferastral. Scand. J. Haemat, Vol. 32, pp 36437l.
3l.
Ojo, C.O. and Ayeni, O. (1977): A rapid spectrophotometric method for the assay
ofG6PD. Nig. Med. Lab. Sc. Vol. 34, pp 41-47.
32.
Laditan, A.A.O. and Ayeni, O. (1977): Measurement of skinfold thickness
andmusculature in the assessment of growth and nutritional status of malnourished
children. J. Human Nutr. Vol. 31 pp 181-187.
33.
Oduntan, S.O., Odunlami, V.B. and Ayeni, O. (1977): The birthweight of Nigerian
babies. J. Trop. Paed. &Env. Child. Hlth Vol. 23 NO.3 pp 141-144.
34.
Ibeziako, P.A., Scott-Emuakpor, M.B. and Ayeni, O. (1977): Post-operative wound
sepsis following obstetrical and gynaecological laparotomies in Nigeria. J. Trop. med.
&Hgy. Vol. 80, pp 238-242.
35.
Akinkugbe, 0.0., Akinkugbe, F.M., Ayeni, O.,Solomon, F, French, K. and Minear, R.
(1977): Biracial study of arterial pressures in the first and second decades of life. Brit.
med. J. Vol. 1 pp 1132-1134.
36.
Odjegba, A.O., Olatunbosun, D.A., Olatunbosun, O.,Adeniyi, F.A., Ayeni, O., Adadevoh,
E.K. and Akande, E.O. (1977): Glucosuria in normal pregnancy (a quantitative study).
Nig. Med. J. Vol. 7 No.2, pp 170-17l.
37.
Ayeni, O. (1978) Basic health statistical records for schools and colleges in Nigeria. Nig.
Schl. Health J. Vol. 1 No.1, pp 28-3l.
38.
Ayeni, O. (1978) Retrospective estimates of mortality from the Nigerian medical census
of 1930-1932. Nig. J. Econ. & Soc. Studies Vol. 18 No. 3, pp 461-469.
10
39.
Ayeni, O. and Oduntan S.O. (1978). The effects of sex, birthweight, birthorder and
maternal age on infant mortality in Nigerian community. Ann. Human. Biol. Vol 5 No.4,
pp 353-358.
40.
Essien, E.M. and Ayeni, O. (1978): Factors VIII coagulant activity in an African
population in relation to a recognized standard. Brit. J. Haemat. Vol. 39, No.2, pp 22523l.
4l.
Ukaejiofo, E.A., Ayeni, O. and Esan, G.J.F. (1978) Comparative studies of two methods
for the enumeration of eosinophils in the adult venous blood. Nig. J. med. Lab. Tech.
Vol. 3 No.1, pp 20-23.
42.
Soyanwo, M.A.O., Ayeni, O. and Lucas, A.O. (1978): Studies on the prevalence of renal
disease and hypertension in relation to schistosomiasis: 1. Some aspects of
epidemiological methods in the rural illiterate setting. Nig. med. J. Vol. 8, No.4 pp 290295.
43.
Antia, A., Maxwell, S.E., Gough, A. and Ayeni, O. (1978): Evaluation of the apex beat in
childhood. Arch. Dis. Chldhd. Vol. 53, No.7, pp 585- 589
44.
Oyemade, A., Ayeni, O.,and Onafowokan, E. (1978): Institutional care ofmotherless
babies: Change and challenge. Trop. geogr. med. Vol. 30, pp 543-546.
45.
Ayeni, O. and Olayinka, A. (1979) An evaluation of a special-type vital statistics
registration system in a rural area in Nigeria. Int. J. Epid. Vol. 8 No.1, pp 61-68.
46.
Ayeni, O. (1979) A reassessment ofthe mortality data of the 1965-66 Nigerian rural
demographic inquiry: new refined estimates of mortality for Nigeria. Genus Vol. 35 No.
3-4, pp 189-202.
47.
Ogunbode, O.,Obisesan, K. and Ayeni, O. (1979): Methergin in the management of the
third stage of labour: a comparative clinical trial with syntometrine. Current Therapeutic
Research, Vol. 26, No.4 pp 460-465.
48.
Soyanwo, M.A.O., Ayeni, O. and Lucas, A.O. (1979): Studies on the prevalence of renal
disease and hypertension in relation to schistosomiasis: IV Systemic blood pressure
hypertension and related features. Nig. Med. J. Vol. 8 No.6 pp 465-486.
49.
Ibeziako, P.A. and Ayeni, O. (1979): Post operative wound sepsis in obstetric and
gynaecological surgery. Int. Surgery. Vol. 64 pp 67-70.
50.
Ayeni, O. and Oduntan S.O. (1980) Infant mortality rates and trends in a Nigerian rural
population. J. Trop. Paed. Vol. 26 No.1, pp 4-8.
5l.
Ayeni, O. (1980) Causes of mortality in an African City. Afr. J. Med. Sci. Vol. 9 pp 139149.
11
52.
Laditan, A.A.O. and Ayeni, O. (1980) Protein-energy malnutrition: Observation on
growth pattern during rehabilitation on outpatient basis. Nig. Med. J. Vol. 10 No.5 &6,
pp 169-179.
53.
Oluboyede, O.A., Ogunbode, O.,Ayeni, O. (1980) Iron deficiency anaemia during
pregnancy. East Afr. Med. J. 57(9): 626-633, 1980.
54.
Antia A.U., Maxwell R., Gough A., and Ayeni O. (1980) Arterial blood pressure in
Jamaican children. West Indian Medical Journal 29(2); 110- 116.
55.
Adekunle, O.O., Osanyintuyi, S.O. and Ayeni, O. (1981): Gastric acid secretion using
pentagastrin dose-response studies. Afr. J. Med. med. Sci.10, 69-71.
56.
Familusi J.B., Adeyokunnu, A.A., Folami A.O., and Ayeni O. (1981) Observations on the
seasonal pattern of Burkitt's lymphoma in Ibadan, Nig. J. Paed. 8(1) pp 16-23.
57.
World Health Organization Task Force on Oral Contraceptives (1982) A randomized
double blind study of two combined and two progestogen-¬only oral contraceptive.
Contraception Vol. 25 No.3, pp 243-352.
58.
World Health Organization Task Force on Oral Contraceptive (1982) A randomized
double blind study of six combined oral contraceptives. Contraception Vol. 25 No.3, pp
231-241.
59.
Kale, O.O. and Ayeni, 0 (1982): A method for determining the concentration of
onchocerca volvulus microfilariae in urine. J. Helminthology 56: 323-326.
60.
Falase, A.O., Ayeni, O.,Sekoni, G.A. and Odia, O.J. (1983) Heart Failure in Nigerian
hypertensives. Afr. J. Med. med. Sci. 12, pp 7-15.
61.
WHO Task Force on Oral Contraceptives (1984) Effects of hormonal contraceptives on
milk volume and infant growth. Contraception 30(6) 505-522.
62.
Ayeni, O. (1986) Seasonal variation of births in rural southwestern Nigeria. Int. J. Epid.
Vol. 15 No.1, pp 91-94.
63.
WHO Task Force on Oral Contraceptives (1986) An investigation on the influence of
steroidal contraceptives on milk lipid and fatty acids in Hungary and Thailand.
Contraception 33(2) 159-178.
64.
WHO Task Force on the Sequelae of abortion (1986): Illegal abortion - An attempt to
assess its cost to the health services and its incidence in the community. Int. J. Health
Services, Vol. 15 No.3 1986.
65.
Drury P.J., Crawford M.A., Ayeni O. and Pinol A. (1986) Fatty acids in human milk and
steroidal contraceptives in Hungary and Thailand. Prog. Lipid Res. 25 pp 229-233.
66.
Drury PJ., Crawford M.A., Ayeni, O. and Pinol A. (1986) Comparison of fatty acids in
human milk from Hungary and Thailand. Prog. Lipid Res. 25:235-238.
12
67.
WHO Task Force on Oral Contraceptives (1988) Effects of hormonal contraceptives on
breast milk composition and infant growth. Studies in Family planning 1988,19(6) pp
361-369.
68.
WHO Task Force on Oral Contraceptives (1988) A multicentre comparative study of
serum lipids and lipoproteins in four groups of oral combined contraceptive users and a
control group of IUD users. Contraception, 38(6) pp 605-629.
69.
Oladepo O.,Adeniyi J.D., Brieger W.R., Ayeni O. and Kale O.O. (1989) Onchocerciasis:
The potential of patient education in the control of a tropical disease. Patient Education
and Counseling, 11, 103-116.
70.
WHO Task Force on Oral Contraceptives (1989) The WHO multicentre trial of the
vasopressor effects of combined oral contraceptives:1: Comparisons with IUD
Contraception, 40, 129-45.
7l.
WHO Task Force on Oral Contraceptives (1989) The WHO multicentre trial of the
vasopressor effects of combined oral contraceptives: 2: Lack of effect of estrogen,
Contraception, 40, 147-56.
72.
WHO Task Force on Oral Contraceptives (1991) The WHO multicentre study of
coagulation and haemostatic variables during oral contraception:Variations with
geographical location and ethnicity. Int. J. Epid. Vol. 20, No.4 pp 913-920.
73.
WHO Task Force on Oral Contraceptives (1991) A multicentre study of coagulation and
haemostatic variables during oral contraception: variations with four formulations, Brit. J.
Obs. &Gynae., Vol. 98 pp 1117-1128
74.
World Health Organization Task Force for Epidemiological Research on Reproductive
Health (1994). Progestogen-only contraceptives during lactation: I: Infant growth.
Contraception, Vol. 50 pp 35-53.
75.
World Health Organization Task Force for Epidemiological Research on Reproductive
Health (1994): Progestogen-only contraceptives during lactation. II: Infant Development.
Contraception, Vol. 50pp 55-68.
76.
World Health Organization Task Force for Epidemiological Research on Reproductive
Health (1998) Effects of Contraceptives on hemoglobin and ferritin. Contraception Vol.
58 pp 261-273.
77.
World Health Organization Task Force on Methods for the Natural Regulation of
Fertility: The World Health Organization Multinational Study of Breast- feeding and
Lactational Amenorrhea (1998).
I: Description of infant feeding patterns and of the return of menses (1998)
Fertility and Sterility Vol. 70 pp 448-460.
78.
World Health Organization Task Force on Methods for the Natural Regulation of
Fertility: The World Health Organization Multinational Study of Breast-feeding and
13
Lactational Amenorrhea (1998). II: Factors associated with the length of amenorrhea.
Fertility and Sterility Vol. 70 pp 461-471.
79.
World Health Organization Task Force on Methods for the Natural Regulation of
Fertility: The World Health Organization Multinational Study of Breast-feeding and
Lactational Amenorrhea (1999).
III: Pregnancy during breastfeeding
Fertility and Sterility Vol. 72 pp 431-440
80.
World Health Organization Task Force on Methods for the Natural Regulation of
Fertility: The World Health Organization Multinational Study of Breast-feeding and
Lactational Amenorrhea (1999).
IV: Post partum bleeding and lochia in breastfeeding women (1999) Fertility and Sterility
Vol. 72 pp 441-447.
81.
WHO Working Group on the Growth Reference Protocol and WHO Task Force on
Methods for the Natural Regulation of Fertility (2000). Growth patterns of breastfed
infants in seven countries.
ActaPaediatr Vol. 89 pp 215-222
82.
Gross BA, Burger H and the WHO Task Force on Methods for the Natural Regulation of
Fertility (2002). Breastfeeding patterns and return of fertility in Australian women.
Aust. N.z.J. ObstetGynaecol Vol. 42 pp 255-261
83.
WHO Working Group on the Growth Reference Protocol and WHO Task Force on
Methods for the Natural Regulation of Fertility (2002). Growth of health infants and the
timing, type and Frequency of complementary foods. Am. J. Clin. NutrVol 76: 620-7
84.
Dada OA, Akesode FA, Olanrewaju DM, Olowu OA, Sule-Odu 0, Fakoya TA, Oluwole
FA, Odunlami BV and WHO Task Force on Methods for the Natural Regulation of
Fertility (2002). Infant Feeding and Lactational Amenorrhea in Sagamu, Nigeria.
Afr. J Reprod. Health 6(2): 39-50
85.
Nian Cui and WHO Task Force on Methods for the Natural Regulation of Fertility
(2002). The Impact of Breastfeeding Pattern on the Duration of LactationalAmenorrhoea
in Chengdu, China.
Reproduction and Contraception. 13(2): 98-108
86.
Ayeni 0 (2002) Health Statistics - Measuring Gains and Losses Archives of Ibadan
Medicine 3(2): 44-46.
87.
Akinyemi, J.O., Bamgboye, E.A. and Ayeni, O. (2013) New Trends in under-five
mortality determinants and their effects on child survival in Nigeria. A review of
childhood mortality data from 1990-2008. African Population Studies 27(1): 25-42
14
88.
Ibitoye, O.G., Sanuade, O.A., Adebowale, A.S. and Ayeni, O. (2014) The determinants
of health care utilization among the elderly in a rural community in Northern Nigeria.
IOSR Journal of Humanities and Social Science 19(6)
B.
Books, Chapters in books and conference proceedings
89.
Ayeni, O. (1975) Demographic data collection procedures for public health studies in the
developing countries of Africa. In The Population factor in Tropical African Studies,
edited by Moss and Rathbone, University of London Press, pp 115-122.
90.
Ayeni, O. (1981) Evolution of the causes of death statistics and the use of related
statistics in mortality studies in Africa. In Population dynamics, fertility and mortality in
Africa. U.N. Commission for Africa. 1981 pp 527-539.
91.
WHO Scientific Group on the Epidemiology of Aging (1984) The uses of epidemiology
in the study of the elderly. WHO TRS No. 706.
92.
Ayeni, O. and Weiss, E. (1985) The village documentation survey: a tool for local health
planning. In Proceedings: Conference of the Oyo State Project on Community based
delivery of health and family planning services Ibadan 1985; eds: Centre for Population
and Family Health, Columbia University New York, pp 130-133.
93.
Weiss, E., Ayeni, O.,Ladipo, O.A., Otolorin, E.O. (1985) Fertility and modern family
planning in rural southwestern Nigeria. In: Proceedings:Conference of the Oyo State
Project on Community based delivery of health and family planning services, Ibadan,
1985, eds: Centre for Population and Family Health, Columbia University New York,pp
144-150.
94.
Ayeni, O. (1985) Geographic and socioeconomic differentials characteristic of infant and
child mortality. In International Population Conference, Florence 1985, Volume 2,
IUSSP, Liege Belgium,pp 261-273
95.
Ayeni, 0.,Weiss, E., Olayinka, I., Onadeko, M.O. (1985) The Baseline Survey: health
status and the utilization of health facilities. In Proceedings: Conference of the Oyo State
Project on Community based delivery of health and Family Planning Services, Ibadan,
1985 eds:Centre for Population and Family Health, Columbia University, New York, pp
134-143.
96.
Drury P.J., Crawford M.A., Ayeni O. and Pinol A. (1986) Comparative studies on human
milk lipids in Hungary and Thailand and the effect on steroidal contraceptives. In
15
Composition and physiological properties of human milk pp 189-201. Schaub. J. (ed)
Amsterdam: Elsevier BV.
97.
Ayeni, O. (1993) Priorities for the strengthening of national biostatistical capabilities to
support Nigerian health research in the 1990s. In: Essien E.M., Idigbe E.O., Olukoya,
D.K., eds. Proceedings of the international conference on health research priorities for
Nigeria in the 1990s. Lagos, National Institute for Medical Research, 1993: 249-258.
98.
Ayeni, O. Maternity records and statistics. (1994) In: Nasah BT, Mati JGK, Kasonde J,
eds. Contemporary issues in maternal health care in Africa. Chur, Switzerland, Harwood
Academic Publishers. 1994: 51-65.
99.
Lwanga SK, Choo-YookTye, Ayeni, O., eds. (2000) Teaching Health Statistics: A guide
for lesson and seminar outlines. 2nd Edition, World Health Organization, Geneva 2000.
C.
Background papers and Technical Reports
100.
Fasan, P.O. and Ayeni, O. (1973) Improving communication between the user of
statistics and the statistician - the role of the teacher of public health and health statistics.
WHO Document No. DHSS/C/73.27.
101.
Ayeni, O. (1978) Training needs of teachers of statistics for medical students. WHO
Document No. DHS/IRl78.1 0 presented at the WHO Inter-Regional Conference on the
Teaching of Health Statistics, Karachi, Pakistan, 1978.
102.
Ayeni, O. (1978) Teaching of statistics in the medical undergraduate curriculum of the
University ofIbadan Medical School. WHO Document No. DHS/IRl78.6 presented at the
WHO Inter-Regional Conference on the Teaching of Health Statistics, Karachi, Pakistan,
1978.
103.
Ayeni, O. (1980) A vital statistics registration model for Nigeria. InPopulation
Association of Nigeria, selected papers at the 1st Population Association of Nigeria
Annual Conference on population data assessment in Nigeria, Benin City, 1980.
104.
Ayeni, O. (1981) Collection of vital statistics in the developing countries: an alternative
approach. WHO Document No. DHS/WG.I/8l.10 presented at the WHO Working Group
on 'How many by 2000: Counting Births and Deaths' Rijeka Yugoslavia, 1981.
105.
Ayeni, O. (1983) Demography of Aging in the African Region. World Health
Organization Document No. IRP/ADRI17-02/6.11.