Table 1.

Distribution of skin type, solar-exposure time and Fitzpatrick type in different age groups of the 848 adults from Hangzhou City, China

Age group	Distribution (%)
	Solar-exposure time			Fitzpatrick type			Skin type
	0~2 h/d	2~4 h/d	>4 h/d	II	III	IV	Oily	Dry	N/C
Young (n=324)	37.00	32.10	30.90	10.20	58.00	31.80	38.60	30.80	30.50
Middle-aged (n=384)	39.10	33.90	27.10	12.80	57.50	29.70	32.00	34.90	33.10
Old (n=140)	35.70	35.70	28.60	9.30	54.30	36.40	20.70	53.60	25.70
Total (n=848)	37.80	33.50	28.80	11.20	57.20	31.60	32.70	36.40	30.90

N/C: normal/combinative; χ ² test was performed for comparison with the middle-aged group, P>0.05