. 2011 Aug 16;6(8):e23176. doi: 10.1371/journal.pone.0023176

Table 3. Contact matrices between classes.

	1^st A	1^st B	2^nd A	2^nd B	3^rd A	3^rd B	4^th A	4^th B	5^th A	5^th B	teachers
1^st A	2242.3	582.7	315.3	340.0	260.7	126.3	30.3	61.3	20.0	37.0	61.7
1^st B	582.7	5611.0	234.3	367.0	119.3	83.7	271.0	84.3	197.0	169.0	459.7
2^nd A	315.3	234.3	3055.3	1068.3	339.3	219.0	30.0	19.3	25.66	11.7	331.7
2^nd B	340.0	367.0	1068.3	3723.0	365.7	179.7	53.3	16.0	14.66	20.0	247.3
3^rd A	260.67	119.3	339.3	365.7	2839.7	1105.3	29.7	75.3	40.33	30.0	201.7
3^rd B	126.3	83.67	219.0	179.7	1105.3	3436.3	117.7	85.7	56.0	85.0	147.3
4^th A	30.3	271.0	30.0	53.3	29.67	117.7	2421.7	439.3	163.0	373.0	179.7
4^th B	61.3	84.3	19.3	16.0	75.3	85.7	439.3	1600.0	46.0	207.3	68.3
5^th A	20.0	197.0	25.7	14.7	40.3	56.0	163.0	46.0	2671.0	966.7	188.3
5^th B	37.0	169.0	11.7	20.0	30.0	85.0	163.0	207.3	966.66	2752.7	134.7
teachers	61.67	459.67	331.7	247.3	201.67	147.3	179.7	68.3	188.33	134.7	65.0

The matrix entry for row A and column B gives the cumulated duration Inline graphic (in minutes) of the contacts measured between all individuals of classes A and B over the two days of data collection.