Is obesity a risk factor for low back pain? An example of using the evidence to answer a clinical question

Table 2 Recent evidence: Obesity and low back pain (chronological order)

Author, Year (Ref)	N	BMI	LBP	Association
Melissas, 2003 [14]	50	>40	58%	direct
Bener, 2003 [10]	802	(26.4 males/ 27.8 females)	56.1% males
			73.8% females	moderate
Tsuritani, 2002 [16]	709	--	40.3%	none
Bowerman, 2001 [4]	252	--	29.2%	none
Kostova, 2001 [12]	898	--	--	increased risk
Bayramoglu, 2001 [15]	25	--	--	direct
Mortimer, 2001 [13]	475	30 (43.6%)
		31–40 (28.8%)
		40+ (1.3%)	--	increased risk
Han, 1997 [11] 7018 women	5887 men NR	--		females increased risk

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