Prevalence of obesity and association of body mass index with risk factors in public school teachers

Oliveira, Renata Aparecida Rodrigues de; Mota Júnior, Rômulo José; Tavares, Debora Dornelas Ferreira; Moreira, Osvaldo Costa; Lima, Luciana Moreira; Amorim, Paulo Roberto dos Santos; Britto, Raquel Rodrigues; Marins, João Carlos Bouzas

doi:10.5007/1980-0037.2015v17n6p742

Acessibilidade / Reportar erro

Brasil

Revista Brasileira de Cineantropometria & Desempenho Humano

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Original Article • Rev. bras. cineantropom. desempenho hum. 17 (6) • Nov-Dec 2015 • https://doi.org/10.5007/1980-0037.2015v17n6p742 copy

Prevalence of obesity and association of body mass index with risk factors in public school teachers

Prevalência de obesidade e associação do índice de massa corporal com fatores de risco em professores da rede pública

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The objective of this study was to determine the prevalence of overweight and obesity and the association of body mass index (BMI) with cardiovascular risk factors in public school teachers. A cross-sectional study was conducted on 200 basic education teachers from Viçosa, MG. We assessed BMI, waist circumference (WC), waist-hip ratio (WHR), body fat percentage (%BF), systolic and diastolic blood pressure, fasting glucose, total cholesterol, high-density and low-density lipoprotein (LDL-C), triglycerides, and number of daily steps. Linear regression was used to evaluate the associations between BMI (independent variable) and the other variables (dependent variable). Overweight was observed in 58% of the teachers and obesity in 20%. Among women, all risk factors differed significantly between the group with overweight and/or obesity and the group classified as normal BMI, except for total cholesterol and LDL-C. Linear regression analysis showed a positive association between BMI and the other anthropometric measurements, blood pressure, and biochemical parameters; however, after adjustment for age, an association was only observed with the anthropometric variables (WC, WHR, and %BF). The prevalence of overweight/obesity was high among the basic education teachers studied. The overall obesity indicator (BMI) was not associated with cardiovascular risk factors when adjusted for age.

Key words:
Body mass index; Obesity; Risk factors; Teachers

Variable	Normal (n=84)		Overweight (n=76)		Obesity (n=40)
Variable	F (n=72)	M (n=12)	F (n=65)	M (n=11)	F (n=37)	M (n=3)
Age (years) Data are reported as the median and interquartile range.	40.0(18.0)	39.5(21.0)	46.0(12.3)^* * P<0.05 compared to the same gender with normal BMI;	32.0(16.8)^§ § P<0.05 compared to females.	48.0(8.3)^* * P<0.05 compared to the same gender with normal BMI;	38.0(11.3)^§ § P<0.05 compared to females.
WC (cm)^¥ ¥ Data are reported as the mean and standard deviation.	72.7±5.9	80.9±6.0^§ § P<0.05 compared to females.	83.9±5.7^* * P<0.05 compared to the same gender with normal BMI;	90.2±7.7^* * P<0.05 compared to the same gender with normal BMI; ^§ § P<0.05 compared to females.	95.7±8.8^* * P<0.05 compared to the same gender with normal BMI; ^ǂ ǂ P<0.05 compared to the same gender with overweight;	99.3±0.8^* * P<0.05 compared to the same gender with normal BMI;
WHR Data are reported as the median and interquartile range.	0.76(0.07)	0.86(0.07)^§ § P<0.05 compared to females.	0.80(0.09)^* * P<0.05 compared to the same gender with normal BMI;	0.89(0.06)^§ § P<0.05 compared to females.	0.81(0.11)^* * P<0.05 compared to the same gender with normal BMI;	0.99(0.09)^§ § P<0.05 compared to females.
%BF Data are reported as the median and interquartile range.	27.9(8.1)	19.4(7.9)^§ § P<0.05 compared to females.	34.4(4.7)^* * P<0.05 compared to the same gender with normal BMI;	21.2(6.1)^§ § P<0.05 compared to females.	40.2(2.3)^* * P<0.05 compared to the same gender with normal BMI; ^ǂ ǂ P<0.05 compared to the same gender with overweight;	27.6(1.7)^* * P<0.05 compared to the same gender with normal BMI; ^§ § P<0.05 compared to females.
SBP (mmHg) Data are reported as the median and interquartile range.	110(10.0)	110(0.0)	110(20.0)^* * P<0.05 compared to the same gender with normal BMI;	120(21.3)^* * P<0.05 compared to the same gender with normal BMI; ^§ § P<0.05 compared to females.	120(10.0)^* * P<0.05 compared to the same gender with normal BMI;	120(0.0)
DBP (mmHg) Data are reported as the median and interquartile range.	70(10.0)	70(12.5)	70(20.0)	80(7.5)^§ § P<0.05 compared to females.	80.0(10.0)^* * P<0.05 compared to the same gender with normal BMI;	80(0.0)
Glucose (mg/dL) Data are reported as the median and interquartile range.	83.0(9.5)	86.0(26.0)	85.0(13.3)	89.0(11.3)	91.0(13.8)^* * P<0.05 compared to the same gender with normal BMI; ^ǂ ǂ P<0.05 compared to the same gender with overweight;	82.0(16.5)
TC (mg/dL) Data are reported as the median and interquartile range.	197.5(52.0)	159.5(32.5)^§ § P<0.05 compared to females.	194.0(63.5)	173.0(53.3)	192.0(36.8)	173.0(27.0)
HDL-C (mg/dL) Data are reported as the median and interquartile range.	58.0(20.6)	44.0(17.0)^§ § P<0.05 compared to females.	55.0(20.3)	41.0(12.0)^§ § P<0.05 compared to females.	48.0(12.0)^* * P<0.05 compared to the same gender with normal BMI; ^ǂ ǂ P<0.05 compared to the same gender with overweight;	38.0(5.3)
LDL-C (mg/dL)^¥ ¥ Data are reported as the mean and standard deviation.	118.1 ±32.5	90.6±21.9^§ § P<0.05 compared to females.	116.5±31.9	114.4±37.2	120.3±26.8	111.3±1.5
Triglycerides (mg/dL) Data are reported as the median and interquartile range.	92.5(70.0)	81.0(70.5)	100.0(64.0)	112.0(120.8)	130.0(91.5)^* * P<0.05 compared to the same gender with normal BMI;	133.0(114.8)
Steps per day^¥ ¥ Data are reported as the mean and standard deviation.	8,299±3,125	10,511±4,174^§ § P<0.05 compared to females.	7,596±3,016	7,764±3,343	6,161±3,141^* * P<0.05 compared to the same gender with normal BMI;	11,107±397^§ § P<0.05 compared to females.

Dependent variable^* * Log-transformed value (base 10).	β	95% CI	R²	P-value
%BF	0.018	0.014; 0.021	0.38	< 0.001
WC	1.972	1.805; 2.138	0.73	< 0.001
WHR	0.003	0.002; 0.004	0.12	< 0.001
SBP	0.004	0.002; 0.005	0.12	< 0.001
DBP	0.005	0.003; 0.007	0.13	< 0.001
Glucose	0.004	0.002; 0.006	0.08	< 0.001
Total cholesterol	0.001	-0.002; 0.003	0.00	0.500
HDL-C	-0.006	-0.009; -0.003	0.07	< 0.001
LDL-C	0.555	-0.371; 1.481	0.01	0.239
Triglycerides	0.010	0.004; 0.016	0.05	0.002

Dependent variable^* * Log-transformed value (base 10).	β	95% CI	R²	P-value
%BF	0.123	0.074; 0.172	0.42	< 0.001
WC	1.124	0.992; 1.255	0.78	<0.001
WHR	-0.208	-0.335; -0.063	0.11	0.006
SPB	0.064	-0.078; 0.206	0.13	0.378
DBP	0.094	-0.023; 0.212	0.14	0.115
Glucose	0.041	-0.029; 0.112	0.08	0.249
Total cholesterol	-0.063	-0.376; 0.249	0.00	0.689
HDL-C	0.009	-0.089; 0.106	0.07	0.860
LDL-C	0.019	-0.160; 0.198	0.01	0.832
Triglycerides	-0.015	-0.065; 0.035	0.06	0.553

Universidade Federal de Santa Catarina Universidade Federal de Santa Catarina, Campus Universitário Trindade, Centro de Desportos - RBCDH, Zip postal: 88040-900 - Florianópolis, SC. Brasil, Fone/fax : (55 48) 3721-8562/(55 48) 3721-6348 - Florianópolis - SC - Brazil
E-mail: rbcdh@contato.ufsc.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] Renata Aparecida Rodrigues de Oliveira, Rua Álvaro Gouveia, 575, CEP: 36570-000 – Viçosa, MG, Brasil. renata.oliveira@ufv.br