Original Articles
Copyright ©2011 Baishideng Publishing Group Co.
World J Diabetes. Jan 15, 2011; 2(1): 8-15
Published online Jan 15, 2011. doi: 10.4239/wjd.v2.i1.8
Table 1 Baseline characteristics of subjects without metabolic syndrome and five-year occurrence rates of metabolic syndrome
Baseline dataOverall
Female
Male
N = 1384n = 388n = 996
Measurements; mean (standard deviation)
Age (year)32.3 (6.5)32.8 (7.9)32.1 (5.9)
Body weight (kg)a63.7 (10.9)54.2 (8.0)67.4 (9.6)
Body mass index (kg/m2)a23.0 (3.0)22.0 (3.1)23.4 (2.9)
Waist (cm)a75.6 (8.6)68.5 (6.9)78.3 (7.6)
Systolic blood pressure (mmHg)a117.0 (14.3)111.5 (13.4)119.2 (14.1)
Diastolic blood pressure (mmHg)a71.7 (9.2)68.6 (8.9)72.9 (9.0)
Fasting blood glucose (mg/dL)94.3 (13.2)93.8 (8.2)94.5 (14.8)
Triglycerides (mg/dL)a102.5 (78.0)75.1 (39.3)113.1 (86.3)
HDL cholesterol (mg/dL)a50.5 (11.8)55.6 (12.5)48.6 (11.0)
Prevalent rates (%)
Central obesity3.90%4.60%3.60%
Hyperglycemia20.50%20.10%20.70%
High blood pressurea17.70%8.50%21.30%
Hypertriglyceridemiaa13.70%4.10%17.50%
Low-HDL cholesterolemiaa24.40%35.30%20.20%
Lifestyle
Physical exercise; ≥ 3 times a weeka32.10%25.50%34.60%
Habitual drinkera7.20%0.30%9.90%
Having snacks before sleeping (≥ third a week)a39.50%31.70%42.50%
Having snacks between meals (≥ third a week)a46.50%61.10%40.90%
Ever been a smoker (yes vs no)a32.20%5.20%42.70%
MetS development within 5 yearsa12.60%8.80%14.20%
Table 2 Summary of baseline characteristics of variables for the total population and five-year occurrence rates of metabolic syndrome according to the severity of weight gain (N = 1384)
Baseline dataWG within 5 years
ControlMildModerateSevere
%WG1%
1%%WG5%
5%%WG10%
%WG > 10%
n = 341n =337n =387n =391
Measurements; mean (standard deviation)
Age (year)b33.5 (6.8)33.3 (6.4)32.4 (6.4)29.7 (5.7)
Body weight (kg)64.4 (10.5)63.9 (11.8)63.6 (11.0)62.9 (10.3)
Body mass index (kg/m2)23.3 (2.8)23.1 (3.0)23.0 (3.2)22.6 (2.9)
Waist (cm)76.0 (8.2)75.8 (8.9)75.8 (9.1)74.5 (8.0)
Systolic blood pressure (mmHg)a118.9 (14.5)116.4 (14.4)117.0 (15.0)115.7 (13.3)
Diastolic blood pressure (mmHg)b73.3 (9.4)71.7 (9.3)71.5 (9.8)70.2 (7.8)
Fasting blood glucose (mg/dL)a95.8 (15.1)94.5 (7.9)93.9 (7.4)92.8 (19.5)
Triglycerides (mg/dL)b115.4 (118.8)105.5 (65.0)98.8 (55.9)89.9 (52.2)
HDL cholesterol (mg/dL)49.2 (11.0)50.6 (12.7)50.8 (12.6)51.6 (10.7)
Prevalent rates (%)
Lifestyle factors
Physical exercise; > 3 times a week34.90%30.90%31.30%31.30%
Habitual drinker6.20%7.10%8.50%3.90%
Having snacks before sleeping (≥ third a week)b34.00%35.90%44.20%43.30%
Having snacks between meals (≥ third a week)46.60%43.60%47.00%48.90%
Ever been a smoker (yes vs no)31.10%29.70%33.10%34.80%
MetS development within 5 years9.10%b9.50%b15.80%b16.00%b
Table 3 Summary of baseline characteristics of variables for female and male adults according to the severity of weight gain
Female N = 388
Baseline dataWG within 5 years
ControlMildModerateSevere
%WG1%
1% < %WG5%
5% < %WG10%
%WG >10%
n = 105n = 100n = 99n = 84
Measurements; mean (standard deviation)
Age (year)33.6 (8.7)33.0 (7.4)33.1 (8.1)31.1 (7.0)
Body weight (kg)55.3 (7.3)53.0 (7.5)53.5 (8.3)55.3 (8.8)
Body mass index (kg/m2)b23.9 (2.7)23.8 (2.8)23.3 (3.0)22.6 (2.8)
Waist (cm)68.8 (5.9)67.8 (6.4)68.1 (7.9)69.5 (7.2)
Systolic blood pressure (mmHg)112.2 (13.8)109.7 (12.1)113.2 (14.6)110.6 (12.9)
Diastolic blood pressure (mmHg)68.9 (9.0)67.7 (8.8)69.8 (9.6)67.7 (8.1)
Fasting blood glucose (mg/dL)94.0 (9.1)94.7 (8.6)94.2 (7.0)91.9 (7.4)
Triglycerides (mg/dL)79.4 (38.3)73.4 (33.6)74.0 (33.1)73.2 (51.9)
HDL cholesterol (mg/dL)53.2 (11.6)57.1 (12.9)56.4 (14.4)55.6 (10.2)
Prevalent rates (%)
Lifestyle factors
Physical exercise; ≥ 3 times a week25.70%26.00%23.20%27.40%
Habitual drinker1.00%0.00%0.00%0.00%
Having snacks before sleeping (≥ third a week)28.60%26.00%44.40%27.40%
Having snacks between meals (≥ third a week)59.00%55.00%74.70%54.80%
Ever been a smoker (yes vs no)6.70%3.00%4.00%7.10%

Male N = 996
Baseline dataWG within 5 years
ControlMildModerateSevere
%WG1%
1% < %WG5%
5% < %WG10%
%WG > 10%
n = 236n = 237n = 288n = 235

Measurements; mean (standard deviation)
Age (year)b33.4 (5.7)33.5 (6.0)32.2 (5.7)29.2 (5.0)
Body weight (kg)b68.5 (9.0)68.6 (10.1)67.1 (9.6)65.6 (9.5)
Body mass index (kg/m2)22.2 (2.8)21.6 (2.8)21.8 (3.5)22.4 (3.1)
Waist (cm)b79.3 (7.0)79.2 (7.5)78.4 (7.9)76.3 (7.5)
Systolic blood pressure (mmHg)b121.8 (13.8)119.2 (14.3)118.2 (14.9)117.6 (13.0)
Diastolic blood pressure (mmHg)b75.2 (8.9)73.4 (8.9)72.0 (9.8)71.1 (7.6)
Fasting blood glucose (mg/dL)96.6 (17.1)94.4 (7.6)93.8 (7.5)93.2 (22.3)
Triglycerides (mg/dL)b131.5 (137.6)119.1 (70.2)107.3 (59.5)95.9 (51.1)
HDL cholesterol (mg/dL)a47.4 (10.3)47.9 (11.5)48.8 (11.3)50.1 (10.5)
Prevalent rates (%)
Lifestyle factors
Physical exercise; ≥ 3 times a week39.00%32.90%34.00%32.80%
Habitual drinker8.50%10.10%11.50%9.40%
Having snacks before sleeping (≥ third a week)a36.40%40.10%44.10%48.90%
Having snacks between meals (≥ third a week)41.10%38.80%37.50%46.80%
Ever been a smoker (yes vs no)41.90%40.90%43.10%44.70%
Table 4 Summary of five-year changes in metabolic syndrome-components for female and male adults and the occurrence rates of metabolic syndrome according to the severity of weight gain
Female N = 388
Follow-up changes (%)WG within 5 years
ControlMildModerateSevere
%WG1%
1% < %WG5%
5% < %WG10%
%WG > 10%
n = 105n = 100n = 99n = 84
△Central obesityb8.50%16.00%22.60%32.80%
△High blood pressure22.90%28.70%28.50%37.00%
△Hyperglycemia-3.40%-4.20%-3.10%1.30%
△Hypertriglyceridemiab-0.40%8.00%15.60%24.30%
△Low-HDL cholesterolb-14.40%-17.70%-5.90%-6.00%
MetS Development within 5 yearsb5.70%3.00%14.10%13.10%

Male N = 996
Follow-up changes (%)WG within 5 years
ControlMildModerateSevere
%WG1%
1% < %WG5%
5% < %WG10%
%WG > 10%
n = 236n = 237n = 288n = 235

△Central obesityb10.00%3.00%21.20%40.50%
△High blood pressurea21.00%20.00%21.20%19.00%
△Hyperglycemia-8.00%-11.00%-5.10%-2.40%
△Hypertriglyceridemiab2.00%2.00%8.10%11.90%
△Low-HDL cholesterolb-34.00%-24.00%-24.20%-7.10%
MetS development within 5 years10.60%12.20%16.30%17.00%
Table 5 The adjusted risks for development of metabolic syndrome
WG severitiesOdd ratio95% CI
Total population
Mild WG (1% < %WG < 5%)1.20.70 - 2.2
Moderate WG (5% < %WG < 10%)b3.01.80 - 5.1
Severe WG (%WG > 10%)b5.43.00 - 9.7
Female
Mild WG (1% < %WG < 5%)0.90.20 - 4.5
Moderate WG (5% < %WG < 10%)a3.61.03 - 12.4
Severe WG (%WG > 10%)b5.51.40 - 21.4
Male
Mild WG (1% < %WG < 5%)1.40.70 - 2.7
Moderate WG (5% < %WG < 10%)b3/01.60 - 5.5
Severe WG (%WG > 10%)b5.22.60 - 10.2