Table 1.

Demographic and laboratory characteristics in patients diagnosed with temporomandibular disorders (TMDs) and control patients without TMDs.

Characteristic	TMDs group(n = 50)	Control group(n = 50)	Statistical significance
Age, years	28.24 ± 10.41	30.90 ± 8.49	NS
Sex, female/male	39/11	38/12	NS
25 (OH) Vit D3, ng/ml (normal range, 20–100 ng/ml)	12.80 ± 6.08	14.86 ± 12.76	NS
PTH, pg/ml (normal range, 10–65 pg/ml)	78.05 ± 28.59	52.58 ± 18.20	P < 0.001
Calcitonin, pg/ml (normal range, <8.8 pg/ml)	3.14 ± 1.60	2.88 ± 1.19	NS
Calcium, mg/dl(normal range, 8.9–10.1 mg/dl)	9.69 ± 0.51	9.81 ± 0.40	NS
Magnesium, mg/dl(normal range, 1.7–2.4 mg/dl)	2.02 ± 0.17	2.01 ± 0.15	NS
Phosphorus, mg/dl(normal range, 2.5–4.5 mg/dl)	4.07 ± 4.79	3.32 ± 0.76	NS

Data presented as mean ± SD or n patient prevalence.

PTH, parathyroid hormone; 25 (OH) Vit D3, 25 hydroxy vitamin D3.

NS, no statistically significant between-group differences (P > 0.05; χ²-test, independent samples t-test or Mann–Whitney U-test).