. Author manuscript; available in PMC: 2016 Jul 18.

Published in final edited form as: Scand J Work Environ Health. 2016 May 9;42(4):329–337. doi: 10.5271/sjweh.3569

Table 1.

Description of study sites. [I=intervention; C=control; R=renovation; NC=new construction]

Pair	Group	Size (sq. ft.)	Project length (months)	Time of data collection	Scope of work	Workers (N)
1	I	20 600	8	Aug–Feb	R	79
	C	8500	4	March–July	R	46
2	I	200 000	48	May–Oct	R + NC	298
	C	123 000	13	July–Oct	NC	105
3	I	390 000	35	July–Dec	NC	181
	C	375 000	33	Jan–June	NC	125
4	I	485 000	13	Feb–June	NC	319
	C	19 000	10	July–Dec	R	136