Factors affecting outdoor physical activity in extreme temperatures in a sub-tropical Chinese urban population: an exploratory telephone survey

Table 1 Demographic comparison between the telephone survey cohort and Hong Kong general population

Demographics	Initial 2016 Survey		Follow-up 2017 survey		Population 2016 Census		Follow-up vs. Census p-value^
	n	%	n	%	%	Derived n
Gender	N = 1017		N = 435
Male	437	43	200	46	47.6	207.06	0.498
Female	580	57	235	54	52.4	227.94
Age	N = 1017		N = 435
15–24	126	12.4	65	14.9	12.6	54.81	< 0.001	**
25–44	315	31	101	23.2	31.8	138.33
45–64	384	37.8	168	38.6	36.8	160.08
≥ 65	192	18.9	101	23.2	18.8	81.78
Region	N = 1015		N = 435
Kowloon	315	31	140	32.2	30.8	133.98	0.818
Hong Kong Island	182	17.9	70	16.1	16.6	72.21
New Territories	518	51	225	51.7	52.6	228.81
Marital Status	N = 1012		N = 435
Single	330	32.6	147	33.8	30.1	130.94	0.223
Married	602	59.5	243	55.9	58.3	253.61
Separated/ divorced	80	7.9	45	10.3	11.6	50.46
Household Income (HKD)	N = 945		N = 407
$40,000 +	317	33.5	132	32.4	30.8	125.36	0.069
$20,000-$39,999	333	35.2	129	31.7	27.9	113.55
< $20,000	295	31.2	146	35.9	41.3	168.09
Education	N = 1015		N = 434
Post-secondary	377	37.1	154	35.5	33.2	144.09	< 0.001	**
Secondary	501	49.4	222	51.2	46.2	200.51
Primary or below	137	13.5	58	13.4	20.6	89.40

Data obtained from telephone survey cohort conducted in Hong Kong, 2016–2017
^Chi-square test was used to measure the overall difference in demographic proportions between this study and the 2016 Hong Kong Population Census [38]. Census numbers excluded foreign domestic helpers and those under age 15. District region census numbers were calculated from [41]
^*p-value ≤ 0.05 **p-value ≤ 0.01

ISSN: 1471-2458