Table 3.

Parameter estimates and p-values of zero-inflated negative binomial models for the total number and location-specific social contacts using age, gender, temporal and time use covariates

Variable	Category	Overall	Home	School	Work	Other places
Intercept		3.14(0.20)	− 0.46(0.16)	1.25(1.32)	0.96(0.36)	3.93(0.25)
Time use (in hours)
Home		− 0.07(0.05E−1)**	0.04(0.04E−1)**	0.04(0.05)	− 0.05(0.01)**	− 0.15(0.01)**
Schoola		0.06(0.01)**	0.01(0.01)	0.14(0.05)*	–	− 0.10(0.02)**
Workb		0.08(0.01)**	− 0.01(0.06E−1)*	–	0.43(0.02)**	− 0.16(0.01)**
Gender	Male	− 0.11(0.03)**	− 0.05E−1(0.03)	0.01(0.19)	-0.11(0.09)	− 0.05(0.05)
Ref.: Female
Age group	[3-6) yrs	0.47(0.19)*	0.05(0.17)	0.50(0.51)		0.41(0.20)*
Ref.: [0-3) yrs	[6-12) yrs	0.41(0.18)*	0.09(0.13)	0.49(0.54)		0.51(0.18)**
	[12-18) yrs	0.33(0.18)	0.09(0.14)	0.38(0.64)		0.50(0.18)**
	[18-25) yrs	0.08(0.18)	0.05(0.15)	–		0.18(0.17)
	[25-45) yrs	0.36(0.17)*	0.09(0.13)	–	–	0.49(0.16)**
	[45-65) yrs	0.33(0.17)*	0.20(0.13)	–	–	0.47(0.16)**
	65+ yrs	0.05(0.18)	0.08(0.13)	–	–	0.42(0.17)*
Household size		0.08(0.01)**	0.28(0.01)**	− 0.18(0.09)	− 0.05(0.04)	0.06(0.02)**
Class size		–	–	0.02(0.02)
Temporal factors	Holiday weekday	− 0.05(0.04)	0.03(0.04)	− 5.83(1.21)**	− 0.46(0.13)**	0.08(0.07)
Ref.: Regular weekday	Regular weekend	0.11(0.05)*	0.02(0.05)	− 3.74(0.26)**	− 0.48(0.11)**	0.33(0.08)**
	Holiday weekend	− 0.11(0.07)	− 0.02(0.05)	− 37.77(21.31)	− 1.21(0.18)**	0.13(0.10)
Sample size		1707	1707	227	1008	1707

*p < 0.05; **p < 0.01; ${}^a$ only include participants that spent time at school and reported class size; ${}^b$ only include participants from 25 to 65 year old; – not applicable