Table 2.

Channels and obstacles of nutrition information obtained by gender N (%).

Channel	Total	Boy	Girl	χ2	P
Current a
Newspapers and magazines	6,660 (35.69)	3,129 (46.98)	3,531 (53.02)	41.718	<0.001***
Television and radio	10,913 (58.48)	5,269 (48.28)	5,644 (51.72)	36.908	<0.001***
Network	12,295 (71.78)	5,901 (48.00)	6,394 (52.00)	68.287	<0.001***
Parents or relatives or friends	10,747 (57.59)	5,041 (46.92)	5,705 (53.08)	103.468	<0.001***
The classroom	11,720 (62.82)	5,630 (48.04)	6,090 (51.96)	56.538	<0.001***
Others	1,556 (8.33)	725 (46.59)	831 (53.41)	8.813	0.003**
Future b
Newspapers and magazines	9,062 (48.56)	4,241 (46.80)	4,821 (53.20)	79.352	<0.001***
Television and radio	11,690 (62.65)	5,715 (48.89)	5,975 (51.11)	20.111	<0.001***
network	13,544 (72.58)	6,684 (49.35)	6,860 (50.65)	12.810	<0.001***
Parents or relatives or friends	9,393 (50.34)	4,544 (48.38)	4,849 (51.62)	23.943	<0.001***
The classroom	13,479 (72.23)	6,594 (48.92)	6,885 (51.08)	29.612	<0.001***
Others	2,193 (11.75)	1,019 (46.47)	1,184 (53.53)	13.530	<0.001***
Obstacles c
Need a lot of time to obtain information	6,296 (33.74)	3,290 (52.26)	3,006 (47.74)	16.762	<0.001***
Difficult to understand content	7,557 (40.50)	3,831 (50.69)	3,726 (49.31)	1.478	0.024*
Difficult to verify credibility	9,191 (49.26)	4,458 (48.50)	4,733 (51.50)	19.759	<0.001***
Difficult to understand other language	6,367 (34.12)	3,330 (52.30)	3,037 (47.70)	17.796	<0.001***
Others	2,118 (11.35)	1,010 (47.69)	1,108 (52.31)	5.825	0.016*

*P <0.05, **P <0.01, ***P <0.001.

^an = 6,660, excluded 835 participants had never received nutrition information.

^bn = 9,062, included all participants who answered the questions.

^cn = 6,296, included all participants who answered the questions.