Table 1. Age groups and histological types.

	Below 30	30-39	40-49	50-59	Above 60	Total
Fibroadenoma	333(72.5%) [87.4%]	66 (14.4%) [59.5%]	50 (10.9%) [37.3%]	7 (1.5%) [10.9%]	3 (0.7%) [11.1%]	459(100%) [64.0%]
Fibrocystic changes	27 (23.7%) [7.1%]	25 (21.9%) [22.5%]	36(31.6%) [26.9%]	18(15.8%) [28.1%]	8 (7.0%) [29.6%]	114(100%) [15.9%]
Phylloides	6 (30.0%) [1.6%]	4 (20.0%) [3.6%]	3 (15.0%) [2.2%]	6 (30.0%) [9.4%]	1 (5.0%) [3.7%]	20 (100%) [2.8%]
Papilloma	2 (7.4%) [0.5%]	4 (14.8%) [3.6%]	13 (48.1%) [9.7%]	4 (14.8%) [6.2%]	4 (14.8%) [14.8%]	27 (100%) [3.8%]
Others	12 (31.6%) [3.1%]	7 (18.4%) [6.3%]	6 (15.8%) [4.5%]	10(26.3%) [15.6%]	3 (7.9%) [11.1%]	38 (100%) [5.3%]
Malignant	1 (1.7%) [0.3%]	5 (8.5%) [4.5%]	26 (44.1%) [19.4%]	19(32.2%) [29.7%]	8 (13.6%) [29.6%]	59 (100%) [8.2%]
Total	381(53.1%) [100%]	111(15.5%) [100%]	134(18.7%) [100%]	64 (8.9%) [100%]	27 (3.8%) [100%]	717(100%) [100%]

Note: percentages within round brackets are row percents, percentages within square brackets are column percents