Table 3 Individual and Overall Kaiser’s Measure of Sampling Adequacy. Initial results with 15 variables and final selection with 13 variables included in the exploratory factor analysis
Variable | Kaiser’s Measure of Sampling Adequacy 15 items | Kaiser’s Measure of Sampling Adequacy 13 items |
|---|---|---|
Overall | 0.55 | 0.72 |
Contact happen indoors or outdoors | 0.50 | 0.61 |
Nature of ventilation at usual place of meeting | 0.47 | 0.63 |
Case shared TB diagnosis with contact | 0.50 | 0.69 |
Contact have cough | 0.55 | 0.69 |
Frequency of shared meals since onset cough | 0.56 | 0.72 |
Frequency and duration of contact over the past month | 0.82 | 0.73 |
Care was provided by the contact in the past 3 months | 0.54 | 0.73 |
Place of usual meeting. Home TB case versus other location. | 0.80 | 0.75 |
Case trusts contact | 0.66 | 0.75 |
Length of knowing contact | 0.71 | 0.77 |
Frequency of sleeping in same room and bed since onset cough | 0.55 | 0.79 |
How well does the case knows contact | 0.55 | 0.80 |
Means of transportation used most often with contact. None (walking) versus a type of transportation. | 0.80 | 0.81 |
Frequency of meeting since onset cough | 0.37 | NE1 |
Number of other people met in addition to contact | 0.12 | NE |