Table 1.

Characteristics of subjects.

	Total (M (SD)/Mdn (Min–Max)) N = 59	Male (M (SD)/Mdn (Min–Max)) N = 21	Female (M (SD)/Mdn (Min–Max)) N = 38	Difference (M Diff (p)/Mdn Diff (p))	Lead-Exposed (M (SD)/Mdn (Min–Max)) N = 52	No Lead-Exposed (M (SD)/Mdn (Min–Max)) N = 7	Difference (M Diff (p)/Mdn Diff (p))
Age (years)	40 (18–59)	25 (18–55)	44 (21–59)	19.5 (p = 0.01)	41 (18–59)	36 (24–45)	−1.5 (p = 0.506)
BMI (kg/m2)	22.45 (4.09)	20.75 (3.16)	23.64 (4.29)	2.89 (p = 0.012)	22.31 (4.18)	23.68 (3.17)	1.36 (p = 0.48)
Nordic score neck complaints	0 (0–4)	0 (0–3)	0 (0–4)	0 (p = 0.019)	0 (0–4)	0 (0–2)	0 (p = 0.615)
Nordic score shoulder complaints	0 (0–4)	1 (0–3)	0 (0–4)	−1 (p = 0.022)	0 (0–4)	2 (0–3)	2 (p = 0.206)
Nordic score back complaints	1 (0–8)	2 (0–8)	0.5 (0–8)	−1.5 (p = 0.052)	1 (0–8)	0 (0–3)	−1 (p = 0.313)
Nordic score right upper limb complaints	0 (0–10)	2 (0–10)	0 (0–9)	−2 (p = 0.001)	0 (0–10)	0 (0–4)	0 (p = 0.708)
Nordic score left upper limb complaints	0 (0–7)	0 (0–7)	0 (0–6)	0 (p = 0.194)	0 (0–7)	0 (0–0)	0 (p = 0.253)
Nordic score right lower limb complaints	3 (0–14)	0 (0–12)	0 (0–14)	0 (p = 0.185)	0 (0–14)	0 (0–12)	0 (p = 0.841)
Nordic score left lower limb complaints	0 (0–14)	0 (0–8)	0 (0–14)	0 (p = 0.145)	0 (0–14)	0 (0–8)	0 (p = 0.824)
Years of service (months)	60 (2–360)	60 (2–144)	84 (2–360)	24 (p = 0.053)	73 (2–360)	60 (5–144)	−13 (p = 0.634)

Bold font indicates statistical significance.