Table 1. Distribution of metabolic comorbidities across the study cohort.
| Investigated field | N | OA |
Chi squared (χ2) |
|||
|---|---|---|---|---|---|---|
| Case (+) | Control (−) | χ2 | P value (P) | |||
| HTN | ||||||
| Normal | 66 | 20 (13.2%) | 46 (30.5%) | 5.934 | 0.015 | |
| Stage 1 | 38 | 16 (10.6%) | 22 (14.6%) | |||
| Stage 2 | 31 | 20 (13.2%) | 11 (7.3%) | |||
| Stage 3 | 16 | 14 (9.3%) | 2 (1.3%) | |||
| Obesity | ||||||
| BMI (kg/m2) | ||||||
| 18.5≤ BMI <24.0 | 61 | 16 (10.6%) | 45 (29.8%) | |||
| 24.0≤ BMI <28 | 65 | 34 (22.5%) | 31 (20.5%) | 22.242 | 0.000 | |
| BMI ≥28.0 | 25 | 20 (13.2%) | 5 (3.3%) | |||
| WC (cm) | ||||||
| M: WC <85; F: WC <80 | 56 | 15 (9.9%) | 41 (27.2%) | |||
| M: 85≤ WC <90; F: 80≤ WC <85 | 31 | 13 (8.6%) | 18 (11.9%) | 18.424 | 0.000 | |
| M: WC ≥90; F: WC ≥85 | 64 | 42 (27.8%) | 22 (14.6%) | |||
| Blood glucose | ||||||
| Normal | 113 | 53 (35.1%) | 60 (39.7%) | 0.054 | 0.817 | |
| Diabetes | 38 | 17 (11.3%) | 21 (13.9%) | |||
| Lipid metabolism | ||||||
| Normal | 76 | 25 (16.6%) | 51 (33.8%) | 11.153 | 0.001 | |
| Dyslipidaemia | 75 | 45 (29.8%) | 30 (19.9%) | |||
| Lipid parameters | ||||||
| TC | ||||||
| Normal | 96 | 37 (24.5%) | 59 (39.1%) | 6.475 | 0.011 | |
| Elevated | 55 | 33 (21.9%) | 22 (14.6%) | |||
| TG | ||||||
| Normal | 129 | 59 (39.1%) | 70 (46.4%) | 0.137 | 0.711 | |
| Elevated | 22 | 11 (7.3%) | 11 (7.3%) | |||
| HDL-C | ||||||
| Normal | 116 | 44 (29.1%) | 72 (47.7%) | 15.163 | 0.001 | |
| Elevated | 3 | 3 (2.0%) | 0 (0%) | |||
| Lower | 32 | 23 (15.2%) | 9 (6.0%) | |||
| LDL-C | ||||||
| Normal | 122 | 52 (34.4%) | 70 (46.4%) | 3.563 | 0.059 | |
| Elevated | 29 | 18 (11.9%) | 11 (7.3%) | |||
| N of metabolic disorders | ||||||
| 0 | 20 | 4 (2.6%) | 16 (10.6%) | |||
| 1 | 37 | 8 (5.3%) | 29 (19.2%) | |||
| 2 | 49 | 25 (16.6%) | 24 (15.9%) | 28.290 | 0.000 | |
| 3 | 34 | 25 (16.6%) | 9 (6.0%) | |||
| 4 | 11 | 8 (5.3%) | 3 (2.0%) | |||
This table highlights the differences between the distributions of various metabolic disorders between the two groups. N, number; OA, osteoarthritis; HTN, hypertension; BMI, body mass index; WC, waist circumference; TC, total cholesterol; TG, triglyceride; HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol.