Table 1.
Baseline characteristics and components of metabolic syndrome of the community cohort study of nervous system diseases (CCSNSD) project population across quartiles of the DII score(Frequency and percentages; median values and interquartile range)
| Quartile 1 (n 483) | Quartile 2 (n 484) | Quartile 3 (n 485) | Quartile 4 (n 484) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Characteristic | Frequency | % | Frequency | % | Frequency | % | Frequency | % | P-value |
| Age (years) | < 0·001 | ||||||||
| Median | 68 | 65 | 63 | 64 | |||||
| IQR | 64·0–73·0 | 60·0–70·0 | 59·0–68·0 | 60·0–69·0 | |||||
| Sex | 0·938 | ||||||||
| Male | 189 | 39·1 | 180 | 37·2 | 183 | 37·7 | 184 | 38·0 | |
| Female | 294 | 60·9 | 304 | 62·8 | 302 | 62·3 | 300 | 62·0 | |
| BMI (kg/m2) | |||||||||
| BMI < 18·50 (underweight) | 9 | 1·9 | 22 | 4·5 | 13 | 2·7 | 12 | 2·5 | 0·010 |
| 18·50 ≤ BMI < 24·00 (normal weight) | 165 | 34·2 | 204 | 42·1 | 202 | 41·6 | 174 | 36·0 | |
| 24·00 ≤ BMI < 28·00 (overweight) | 203 | 42·0 | 185 | 38·2 | 180 | 37·1 | 197 | 40·7 | |
| BMI ≥ 28·00 (obese) | 106 | 21·9 | 73 | 15·1 | 90 | 18·6 | 101 | 20·9 | |
| Residence | 0·520 | ||||||||
| Urban | 126 | 26·1 | 140 | 28·9 | 141 | 29·1 | 125 | 25·8 | |
| Rural | 357 | 73·9 | 344 | 71·1 | 344 | 70·9 | 359 | 74·2 | |
| Employment | 0·174 | ||||||||
| No | 427 | 88·4 | 409 | 84·5 | 406 | 83·7 | 415 | 85·7 | |
| Yes | 56 | 11·6 | 75 | 15·5 | 79 | 16·3 | 69 | 14·3 | |
| Education | 0·089 | ||||||||
| Illiteracy | 122 | 25·3 | 133 | 27·5 | 108 | 22·3 | 118 | 24·4 | |
| Primary school | 174 | 36·0 | 158 | 32·6 | 150 | 30·9 % | 147 | 30·4 | |
| Junior high school/above | 187 | 38·7 | 193 | 39·9 | 227 | 46·8 | 219 | 45·2 | |
| Tobacco smoking | 0·485 | ||||||||
| No | 399 | 82·6 | 407 | 84·1 | 418 | 86·2 | 405 | 83·7 | |
| Yes | 84 | 17·4 | 77 | 15·9 | 67 | 13·8 | 79 | 16·3 | |
| Physical activities | 0·296 | ||||||||
| Light (<600 MET/week) | 139 | 28·8 | 137 | 28·3 | 135 | 27·8 | 135 | 27·9 | |
| Moderate (600–3000 MET/week) | 240 | 49·7 | 236 | 48·8 | 235 | 48·5 % | 233 | 48·1 | |
| Vigorous (>3000 MET/week) | 104 | 21·5 | 111 | 22·9 | 115 | 23·7 | 116 | 24·0 | |
| Median | IQR | Median | IQR | Median | IQR | Median | IQR | ||
| Glucose (mg/dl) | 5·60 | 5·14–6·40 | 5·57 | 5·11–6·28 | 5·49 | 5·05–6·28 | 5·60 | 5·07–6·26 | 0·268 |
| TAG (mg/dl) | 1·48 | 1·06–2·08 | 1·35 | 0·95–1·90 | 1·35 | 0·99–1·98 | 1·36 | 1·02–1·98 | 0·012 |
| HDL-cholesterol (mg/dl) | 1·24 | 1·04–1·49 | 1·33 | 1·08–1·59 | 1·30 | 1·10–1·56 | 1·26 | 1·06–1·51 | 0·012 |
| Systolic BP (mmHg) | 135 | 125·0–147·0 | 132 | 121·0–144·0 | 132·5 | 122·0–143·0 | 134 | 122·0–145·0 | 0·007 |
| Diastolic BP (mmHg) | 82 | 75·0–89·0 | 81 | 75·0–90·0 | 82 | 75·0–89·0 | 81·8 | 75·0–89·0 | 0·977 |
| Waist circumference (cm) | 90 | 84·0–97·1 | 90 | 82·0–97·0 | 89 | 83·2–96·0 | 90 | 84·0–96·2 | 0·489 |
DII, dietary inflammatory index; MET, metabolic equivalent.
Quartile 1: −5·24–0·81; Quartile 2: 0·81–1·81; Quartile 3: 1·81–2·54; Quartile 4: 2·54–5·59.