Introductory Lab

Gender was observed and designated as either Male or Female (M/F). Shirt sleeve length defined as either Short Sleeved (SS) or Long Sleeved (LS). Restrictions: Sampling was conducted indoors, during summer months.Sleeve length was defined as the type of shirt worn, (tank tops and tee shirts for SS, sweaters, long sleeved shirts as LS) not by how the shirt was worn, LS rolled to the elbow still constitutes LS.

性别经观测并标注为男性或女性（M/F）。衬衫袖长被定义为短袖（Short Sleeved，缩写SS）或长袖（Long Sleeved，缩写LS）两类。限制条件：采样于夏季室内环境中开展。袖长依据所穿着的衬衫款式定义：无袖背心与短袖T恤归为短袖（Short Sleeved，缩写SS），毛衣与长袖衬衫归为长袖（Long Sleeved，缩写LS）；判定标准不以衬衫的实际穿着状态为转移，即使将长袖衬衫卷至手肘处，仍归类为长袖（LS）。