Table 6. Multivariate logistic regression (factors predicting plantar fasciitis).

Factor		P-Value	Odds Ratio	Confidence Interval
Gender (male vs female)		< 0.001*	0.52	0.37	0.74
Age (less than 40 years is the referent)
40 - 55 years		< 0.001*	2.15	1.44	3.23
56 - 65 years		0.037*	3.58	1.08	11.89
Older than 65 years		0.831	1.36	0.08	22.85
BMI (underweight is the referent)
Normal weight		0.475	0.79	0.42	1.49
Overweight		0.684	1.15	0.60	2.20
Obesity		0.031*	2.16	1.07	4.36
Having pes planus (low-arched) (yes vs no)		0.087	2.18	0.89	5.34
Having weakness of the gastrocnemius, soleus and the intrinsic foot muscles (yes vs no)		0.003*	7.39	1.97	27.78
How much standing or walking is required from you by your job? (none is the referent)
Great amount		< 0.001*	3.17	1.84	5.48
Moderate amount		0.012*	1.83	1.14	2.93
A little amount		0.666	0.88	0.50	1.56
* Significant at level 0.05